Sony SDX 1100V User Manual

SDX-1100V

SDX-1100V/R

5.25”Model

Product Specification Manual

Version 1.0

August, 2006

NOTE:

This Product Specification Manual is applicable for AIT-5 drive.

Table of Contents

1. INTRODUCTION............................................................................................. 1-1

1.1. About this Product Specification Manual................................................................ 1-1

1.2. Introducing the Sony AIT Technology..................................................................... 1-1

1.3. Features of the Drive................................................................................................. 1-1

1.4. Reference................................................................................................................... 1-3

1.4.1. How to get ECMA-329 Standard Document ............................................................ 1-3

2. SPECIFICATIONS .......................................................................................... 2-1

2.1. Specifications............................................................................................................ 2-1

2.1.1. Dimensions.............................................................................................................. 2-1

2.1.1.1. Mounting Holes....................................................................................................... 2-2

2.1.2. Weight ..................................................................................................................... 2-4

2.1.3. Connectors .............................................................................................................. 2-4

2.1.3.1. SCSI Cables and Terminators................................................................................. 2-4

2.2. Environmental Specifications .................................................................................. 2-4

2.2.1. Temperature and Humidity Range ........................................................................... 2-4

2.2.2. Altitude..................................................................................................................... 2-5

2.2.3. Suspended Particulate............................................................................................. 2-5

2.2.4. Vibration .................................................................................................................. 2-5

2.2.5. Shock....................................................................................................................... 2-5

2.2.6. Acoustic Noise......................................................................................................... 2-5

2.2.7. EMC......................................................................................................................... 2-5

2.2.8. Orientation............................................................................................................... 2-5

2.3. Performance Specification....................................................................................... 2-6

2.3.1. Data Capacity.......................................................................................................... 2-6

2.3.2. Data transfer Rate ................................................................................................... 2-7

2.3.2.1. Sustained Data Transfer Rate to and from the Tape............................................... 2-7

2.3.2.2. Burst Transfer Rate to and from the SCSI Bus ....................................................... 2-7

2.3.3. Initialize Time........................................................................................................... 2-7

2.3.4. Load Time................................................................................................................ 2-7

2.3.5. Unload Time ............................................................................................................ 2-7

2.3.6. Search Time ............................................................................................................ 2-7

2.3.7. Rewind Time............................................................................................................ 2-7

2.3.8. Long Erase Time ..................................................................................................... 2-8

2.3.9. Error Rate................................................................................................................ 2-8

2.3.10. Definition of Failure ............................................................................................... 2-8

2.3.11. Mean Time Between Failures ................................................................................ 2-8

2.3.12. Mean Time to Repair............................................................................................. 2-8

2.3.13. Component Life..................................................................................................... 2-8

2.3.14. Durability ............................................................................................................... 2-8

2.4. Safety ......................................................................................................................... 2-9

2.4.1. Conditions of Acceptability....................................................................................... 2-9

2.5. Installation Requirements ........................................................................................ 2-9

2.5.1. Power Requirements ............................................................................................... 2-9

2.6. Data Compression................................................................................................... 2-10

SDX-1100V series Ver.1.0 Table of Contents

3. INSTALLATION .............................................................................................. 3-1

3.1. Installation Guide ...................................................................................................... 3-1

3.1.1. SCSI ID Number Jumper......................................................................................... 3-2

3.1.2. Termination Power Switch ....................................................................................... 3-2

3.1.3. Parity Disable Jumper.............................................................................................. 3-3

3.1.4. Data Compression ON Switch................................................................................. 3-3

3.1.5. Power Connector..................................................................................................... 3-3

3.1.6. SCSI 68 pin Connector............................................................................................ 3-3

3.1.7. Attaching and Removing the Dust Cover................................................................. 3-6

3.1.7.1. Attaching the Dust Cover........................................................................................ 3-6

3.1.7.2. Removing the Dust Cover....................................................................................... 3-7

4. OPERATION................................................................................................... 4-1

4.1. Summary of LED Indications.................................................................................... 4-1

4.2. Operator Action......................................................................................................... 4-2

4.2.1. Powering up the Drive ............................................................................................. 4-2

4.2.2. Inserting Cassettes.................................................................................................. 4-2

4.2.3. Removing Cassettes................................................................................................ 4-2

4.2.4. Hard Reset Hole ...................................................................................................... 4-2

4.2.5. Write-Protecting Cassettes...................................................................................... 4-2

4.3. Internal Function ....................................................................................................... 4-3

4.3.1. The Load Sequence ................................................................................................ 4-3

4.3.2. The Unload Sequence............................................................................................. 4-3

4.3.3. Power-Fail or SCSI Reset Handling......................................................................... 4-3

4.3.4. Diagnostic and Normal Status Displays................................................................... 4-4

4.3.4.1. Diagnostic Status Display....................................................................................... 4-4

4.3.4.2. Normal Status Display ............................................................................................ 4-4

4.4. Tape Alert................................................................................................................... 4-5

4.5. Tape Format............................................................................................................... 4-5

4.6. Maintenance, Troubleshooting and Service............................................................ 4-6

4.6.1. Head Cleaning......................................................................................................... 4-6

4.6.1.1. Message When Cleaning Cassette is Necessary ................................................... 4-6

4.6.1.2. The condition of Cleaning Request......................................................................... 4-6

4.6.1.3. Usage of Cleaning Cassette................................................................................... 4-6

4.6.2. Troubleshooting Guide............................................................................................. 4-6

4.6.2.1. Operational Problems............................................................................................. 4-6

4.6.2.2. Read/Write Problems.............................................................................................. 4-9

4.6.2.3. Replace Tape.......................................................................................................... 4-9

4.6.2.4. Media Warning........................................................................................................ 4-9

5. SCSI INTERFACE .......................................................................................... 5-1

5.1. Introduction ............................................................................................................... 5-1

5.2. SCSI Bus Operation .................................................................................................. 5-3

5.3. Message Specification.............................................................................................. 5-4

5.3.1. COMMAND COMPLETE (00h)................................................................................ 5-5

5.3.2. EXTENDED MESSAGE (01h) ................................................................................. 5-5

5.3.2.1. PARALLEL PROTOCOL REQUEST (04h) ............................................................. 5-5

5.3.2.2. SYNCHRONOUS DATA TRANSFER REQUEST (01h).......................................... 5-6

SDX-1100V series Ver.1.0 Table of Contents

5.3.2.3. WIDE DATA TRANSFER REQUEST...................................................................... 5-8

5.4. Status Specification................................................................................................ 5-12

6. COMMAND SPECIFICATION ........................................................................ 6-1

6.1. ERASE 19h................................................................................................................. 6-2

6.2. INQUIRY 12h .............................................................................................................. 6-3

6.3. LOAD/UNLOAD 1Bh.................................................................................................. 6-8

6.4. LOCATE 2Bh............................................................................................................ 6-10

6.5. LOG SELECT 4Ch.....................................................................................................6-11

6.6. LOG SENSE 4Dh...................................................................................................... 6-13

6.6.1. The Log Page Descriptor....................................................................................... 6-14

6.6.2. The Log Parameter Descriptor............................................................................... 6-15

6.6.3. Summary List of Supported Pages (00h)............................................................... 6-17

6.6.4. Write and Read Error Counters Pages (02h or 03h).............................................. 6-17

6.6.5. Last N Error Events List (07h) ............................................................................... 6-18

6.6.6. Tape Alert Log Page (2Eh)..................................................................................... 6-19

6.6.7. Tape Log Page (30h) (Sony Unique) ..................................................................... 6-24

6.6.8. Tape Capacity Log Page (31h) (Sony Unique)....................................................... 6-25

6.6.9. Drive Usage Log Page (33h) (Sony Unique) ......................................................... 6-26

6.6.10. Read and Write Frame Error Counter Page (34h & 35h) .................................... 6-27

6.6.11. Data Compression Transfer Log Page (39h) (Sony Unique) ............................... 6-30

6.6.12. AIT Log Page (3Ch) (Sony Unique)..................................................................... 6-31

6.6.13. MIC Fixed Length Information Page (3Dh) (Sony Unique).................................. 6-33

6.6.14. MIC Variable Length Information Page (3Eh) (Sony Unique) .............................. 6-38

6.7. MODE SELECT(6/10) 15h and 55h ......................................................................... 6-40

6.7.1. Disconnect-Reconnect Page (02h)........................................................................ 6-44

6.7.2. Control Mode Page (0Ah)...................................................................................... 6-45

6.7.3. Data Compression Control Page (0Fh).................................................................. 6-46

6.7.4. Device Configuration Page (10h)........................................................................... 6-47

6.7.5. Medium Partitions Parameter Page (11h).............................................................. 6-49

6.7.6. Informational Exceptions Control Page (1Ch)........................................................ 6-51

6.7.7. AIT Device Configuration Page (31h) .................................................................... 6-52

6.8. MODE SENSE (6/10) 1Ah and 5Ah ......................................................................... 6-54

6.9. PERSISTENT RESERVE IN 5Eh.............................................................................. 6-57

6.10. PERSISTENT RESERVE OUT 5Fh ....................................................................... 6-60

6.11. PREVENT ALLOW MEDIUM REMOVAL 1Eh........................................................ 6-62

6.12. READ 08h .............................................................................................................. 6-63

6.13. READ ATTRIBUTE 8Ch......................................................................................... 6-65

6.13.1. ATTRIBUTE VALUES service action................................................................... 6-66

6.13.2. ATTRIBUTE LIST service action ......................................................................... 6-67

6.13.3. PARTITION LIST service action.......................................................................... 6-68

6.13.4. VOLUME LIST service action.............................................................................. 6-68

6.14. READ BLOCK LIMITS 05h.................................................................................... 6-69

6.15. READ BUFFER 3Ch .............................................................................................. 6-70

6.16. READ POSITION 34h ............................................................................................ 6-73

6.17. RECEIVE DIAGNOSTIC RESULTS 1Ch................................................................ 6-75

6.18. RELEASE (6/10) 17h and 57h............................................................................... 6-77

6.19. REPORT DENSITY SUPPORT 44h....................................................................... 6-79

6.20. REPORT DEVICE IDENTIFIER A3h ...................................................................... 6-82

6.21. REPORT LUNS A0h............................................................................................... 6-83

SDX-1100V series Ver.1.0 Table of Contents

6.22. REQUEST SENSE 03h .......................................................................................... 6-84

6.23. RESERVE (6/10) 16h and 56h............................................................................... 6-93

6.24. REWIND 01h.......................................................................................................... 6-95

6.25. SEND DIAGNOSTIC 1Dh....................................................................................... 6-96

6.26. SET DEVICE IDENTIFIER A4h.............................................................................. 6-98

6.27. SPACE 11h............................................................................................................. 6-99

6.27.1. CHECK CONDITION......................................................................................... 6-101

6.28. TEST UNIT READY 00h....................................................................................... 6-102

6.29. WRITE 0Ah .......................................................................................................... 6-103

6.30. WRITE ATTRIBUTE 8Dh...................................................................................... 6-104

6.31. WRITE BUFFER 3Bh........................................................................................... 6-106

6.32. WRITE FILEMARKS 10h ..................................................................................... 6-108

7. DRIVE DIAGNOSTICS ................................................................................... 7-1

7.1. Overview .................................................................................................................... 7-1

7.2. Diagnostic Test.......................................................................................................... 7-1

7.2.1. Power-on Self Test................................................................................................... 7-1

7.2.2. SEND DIAGNOSTIC command - Self Test.............................................................. 7-2

7.2.3. SEND DIAGNOSTIC command - Individual Test..................................................... 7-2

7.2.4. Diagnostic Test Number Summary .......................................................................... 7-3

7.2.5. RECEIVE DIAGNOSTIC RESULT command .......................................................... 7-4

8. APPENDIX A: ASC & ASCQ ALPHABETIC ORDER.................................... 8-1

9. APPENDIX B: ASC & ASCQ NUMERIC ORDER.......................................... 9-1

10. APPENDIX C: ASC & ASCQ FOR AIT (SONY UNIQUE).......................... 10-1

11. APPENDIX D: SCSI COMMANDS (OP CODE ORDER) ........................... 11-1

12. APPENDIX E: MEDIUM AUXILIARY MEMORY ATTRIBUTE ................... 12-1

12.1. INTRODUCTION .................................................................................................... 12-1

12.2. OVERVIEW............................................................................................................. 12-1

12.3. MEDIUM AUXILIALY MEMORY ATTRIBUTE TYPES AND STATES .................... 12-1

12.4. MEDIUM AUXILIARY MEMORY ATTRIBUTE DATA ............................................. 12-2

12.4.1. Attribute Format................................................................................................... 12-2

12.4.2. Attribute Identifier Values..................................................................................... 12-3

12.4.3. Standard Device Type Attributes ......................................................................... 12-3

12.4.4. Standard Medium Type Attributes ....................................................................... 12-9

12.4.5. Standard Host Type Attributes........................................................................... 12-10

13. APPENDIX F: AIT BASED WORM SYSTEM............................................. 13-1

13.1. Important Notice ................................................................................................... 13-1

13.2. Write-Protected (WP) Bit in Mode Sense Data.................................................... 13-1

13.3. How to detect a WORM cartridge. ....................................................................... 13-1

13.4. How to initialize a WORM cartridge..................................................................... 13-1

13.5. How to handle the WORM cartridge in the drive................................................ 13-2

SDX-1100V series Ver.1.0 Table of Contents

14. APPENDIX G: CD-ROM DEVICE EMULATION FOR DISASTER

RECOVERY ...................................................................................................... 14-1

14.1. Overview................................................................................................................ 14-1

14.2. Creating Disaster Recovery Tape........................................................................ 14-1

14.3. Configuring The Drive For Disaster Recovery Operation.................................. 14-1

14.4. Exiting DR Mode ................................................................................................... 14-1

14.5. Supported CD-ROM DR Command Set............................................................... 14-1

14.5.1. Inquiry (12h)........................................................................................................ 14-1

14.5.2. Read 10 (28h) ..................................................................................................... 14-1

14.5.3. Read Capacity (0x25).......................................................................................... 14-1

14.5.4. Read TOC (0x43)................................................................................................ 14-2

14.5.5. Mode Sense/Select Page Code 0x3C................................................................. 14-2

14.6. Reset Handling...................................................................................................... 14-2

SDX-1100V series Ver.1.0 Table of Contents

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SDX-1100V series Ver.1.0 Table of Contents

1.Introduction

1. Introduction

1.1. About this Product Specification Manual

This Product Specification Manual is applicable for AIT-5 drive.

This manual provides information about the Sony SDX-1100V series Advanced Intelligent Tape Drives which is

necessary to integrate the drives into OEM products. This manual describes the specifications, SCSI Interface,

diagnostics, operation and installation of the Sony AIT-5 Tape Drives.

The Sony SDX-1100V drive uses data compression to achieve high capacity and high transfer rates. Actual

capacity and transfer rate depends on the source file type. The capacity ratings listed in the next subsection are

based on a 246 meter tape AIT-5 cassette. The Sony SDX-1100V drive is a high capacity data storage device

using Advanced intelligent tape (AIT) technology. The Sony SDX-1100V drive achieves high data integrity through

read-after-write, an additional level of Error Correction Code, and other features.

The Sony SDX-1100V drives provide MIC technology that automatically enhance reliability and performance. The

Sony SDX-1100V drives provide read and write capability for MIC user data area.

1.2. Introducing the Sony AIT Technology

While magnetic storage technologies continue to push the envelope of recording density and provide higher

capacities and transfer rates every 18 to 24 months, improvements in time to access this data have become very

limited. Since 1990, tape recording densities have increased up to ten fold, while the time to access this data

has increased less than two fold, creating a large mismatch between the amount of stored data and the ability to

access it.

This large “gap” between data access latency and area density has created a dilemma in application development

and limited the potential to implement truly cost-effective tertiary storage solutions. Many applications

compensated for this deficiency by incorporating multiple redundant tape drives, at higher cost, to achieve an

acceptable level of service for their users. Sony’s new Advanced Intelligent Tape design has recognized this need

and provided an innovative approach to solving the data latency problem while increasing capacity and data

transfer rates.

Traditional, older tape technologies relied mostly on conventional mechanical means, such as faster search

speeds or an on-tape index to improve access to stored data. While improvements in electronics and magnetics

have been the main enablers of increased capacity and transfer rates, rarely have these same technologies been

employed to significantly improve access to data.

Sony’s Advanced Intelligent Tape (AIT) architecture has deviated from conventional designs and employed

electronic enhancements to significantly improve access to stored data, using a captive, non-volatile memory

chip contained within the magnetic data cartridge. Known as Memory-In-Cassette, or MIC, this memory chip

provides a direct and immediate connection to the tape drive’s on-board processors to enable quick media

load, fast access to user files and provide a wealth of data about the history and current state of the data

cartridge.

1.3. Features of the Drive

Major features of the Sony SDX-1100V include:

• Capacity

100 Gbyte typical when using 230 meter tape AIT-3 cassette (SDX3-100C)

260 Gbyte with 2.6:1 Data Compression

150 Gbyte typical when using 246 meter tape AIT-3Ex cassette (SDX3X-150C)

390 Gbyte with 2.6:1 Data Compression

200 Gbyte typical when using 246 meter tape AIT-4 cassette (SDX4-200C)

520 Gbyte with 2.6:1 Data Compression

400 Gbyte typical when using 246 meter tape AIT-5 cassette (SDX5-400C)

SONY AIT-5 drive SDX-1100V series Ver.1.0

1-1

1.Introduction

1040 Gbyte with 2.6:1 Data Compression

• Sustained transfer rate

16 Mbyte/sec when using AIT-3 cassette

18 Mbyte/sec when using AIT-3Ex cassette

24 Mbyte/sec when using AIT-4 cassette and AIT-5 cassette

• Supported Format

AIT-3 (Read/Write)

AIT-3Ex (Read/Write)

AIT-4 (Read/Write)

AIT-5 (Read/Write)

• Not compatible with the DDS and EXABYTE format tapes

• Burst transfer rate

12 Mbyte/sec Asynchronous

160 Mbyte/sec Synchronous

• Large 96 MB Buffer Memory

• 3.5” Standard Height, 5.25” Half Height

• Embedded SCSI interface (Ultra 160 LVD, Single-ended or Low Voltage differential)

• Supports Variable or Fixed record length

• Supports SCSI Disconnection/Arbitration

• Read After Write (RAW) On and Off capability

• Read Retry On and Off capability

• Frame rewrite function –AIT-3

• Fragment rewrite function – AIT-3Ex, AIT-4 and AIT-5

• Three levels of Error Correction Code (ECC) – AIT-3

• Two levels of Error Correction Code (ECC) – AIT-3Ex, AIT-4 and AIT-5

• High Speed search

• Random read, Append write

• MIC Support (Automatic reliability and performance enhancement.)

• MIC Support (Read and write capability for MIC user data area.)

• Remote-MIC Support

• Tape Alert

1-2

SONY AIT-5 drive SDX-1100V series Ver. 1.0

1.Introduction

1.4. Reference

Please refer to the following documents for additional information:

•SCSI-2 ANSI X3.131.-1996 Small Computer Systems Interface-2 (SCSI-2).

• SCSI Parallel Interface-2 (SPI-2) ANSI X3T10-1142D rev 20b.

ANSI X3T9.2/86-109 (Revision 10H, or above), available through ANSI.

• SCSI Parallel Interface-3 (SPI-3) ANSI INCITS 336-2000

• SCSI Architecture Model-2 (SAM-2) ANSI INCITS 366-2003

• ALDC - Adaptive Lossless Data Compression (ALDC) Algorithm;

ECMA-222, available through ECMA.

•

1.4.1. How to get ECMA-329 Standard Document

You can get the ECMA-329 Standard Document file from the following URL.

http://www.ecma-international.org/publications/standards/standard.html

ANSI (American National Standard for Industry)

ECMA (European Computer Manufacturers Association)

SONY AIT-5 drive SDX-1100V series Ver.1.0

1-3

1.Introduction

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1-4

SONY AIT-5 drive SDX-1100V series Ver. 1.0

2.Specification

2. Specifications

Physical, environmental and performance specifications for the SDX-1100V and SDX-1100V/R.

2.1. Specifications

2.1.1. Dimensions

The SDX-1100V

Height

Width

Depth

41.2 mm (1.62 in)

101.6 mm (4.00 in)

155.0 mm (6.10 in)

± 0.5 mm (0.02 in)

The SDX-1100V/R

Height

Width

Depth

41.2 mm (1.62 in)

146.0 mm (5.75 in)

155.0 mm (6.10 in)

± 0.5 mm (0.02 in)

Note: The above dimensions do not include the front panel thickness, eject button and SCSI connector.

7.6 0.5mm

[0.30" 0.02"]

Height 41.2 0.5mm

[1.62" 0.02"]

Depth 155.0 0.5mm

[6.10" 0.02"]

Width 101.6 0.5mm

[4.00" 0.02"]

7.4 0.6mm

[0.29" 0.02"]

Figure 2-1: Dimensions (SDX-1100V)

SONY AIT-5 drive SDX-1100V series Ver.1.0

2-1

2.Specification

2.1.1.1. Mounting Holes

Figure 2-2a gives details of the mounting holes for the Sony SDX-1100V and figure 2-2b for the Sony

SDX-1100V/R.

60.0 0.3mm

[2.36" 0.01"]

21.0 0.3mm

[0.83" 0.01"]

90.0 0.3mm [3.54" 0.01"]

7.4 0.6mm

[0.29" 0.02"]

155.0 0.5mm [6.10" 0.02"]

9.8 0.6mm [0.39" 0.02"]

31.0 0.3mm

42.0 0.3mm

[1.22" 0.01"]

[1.65" 0.01"]

70.0 0.3mm [2.76" 0.01"]

Figure 2-2a: SDX-1100V Mounting Holes

2-2

SONY AIT-5 drive SDX-1100V series Ver. 1.0

2.Specification

7.0 0.5mm

[0.28" 0.02"]

79.2 0.3mm [3.12" 0.01"]

8.4 0.5mm

[0.33" 0.02"]

47.5 0.3mm

79.2 0.3mm [3.12" 0.01"]

[1.87"

0.01"]

7.6 0.5mm

7.4 0.6mm

155.0 0.5mm [6.10" 0.02"]

[0.30" 0.02"]

[0.29" 0.02"]

9.8 0.6mm

[0.39" 0.02"]

70.0 0.3mm [2.76" 0.01"]

31.0 0.3mm

42.0

0.3mm

[1.65"+0.01"]

[1.22" 0.01"]

47.5 0.3mm

79.2 0.3mm [3.12" 0.01"]

[1.87" 0.01"]

Figure 2-2b: SDX-1100V/R Mounting Holes

SONY AIT-5 drive SDX-1100V series Ver.1.0

2-3

2.Specification

2.1.2. Weight

SDX-1100V

0.8 kg, without a cassette and a front bezel.

1.1 kg, without a cassette and a front bezel.

SDX-1100V/R

2.1.3. Connectors

The SDX-1100V has a SCSI connector with a power connector and Jumpers at the positions shown in Figure 2-3.

All other connectors are for use by Sony’s manufacturing and service facilities only.

Jumpers

Figure 2-3: Connector Positions

Power Connector

SCSI 68 pin Connector

2.1.3.1. SCSI Cables and Terminators

The Single-Ended SCSI configuration and Low-Voltage-differential SCSI configuration are supported by

SDX-1100V, and SDX-1100V/R The hardware specification of this interface can be found in Clause 3. Physical

Characteristics, of the X3T10/1142D (SCSI Parallel Interface2) standard. Only unshielded connectors are

supported. Possible cable and connector sources are listed below. This does not imply that these are the only

sources for SCSI accessories.

Note: When using high speed data transfer with the SDX-1100V it is recommended that total length of the SCSI

data cable not exceeded 1.5m for Single Ended SCSI configuration. As for Low-Voltage-differential SCSI

configuration, less than 12m is recommended.

Cable

30 AWG Ribbon

Hitachi UL 20848 (or equivalent)

Connector

AMP 1-786090-7 (or equivalent)

2.2. Environmental Specifications

The specifications which apply when media is present may be different than these.

2.2.1. Temperature and Humidity Range

Temperature

Operating

Non-Operating(mech.)

Non-Operating(tape)

5 ºC to 40 ºC (ΔT < 10 ºC/h)

-40 ºC to 70 ºC (ΔT < 20 ºC/h)

-40 ºC to 45 ºC (ΔT < 20 ºC/h)

Humidity

Operating

20 to 80% RH, non-condensing

Maximum wet bulb temperature = 26 ºC

5 to 95%RH(ΔRH<30%/h)

Maximum wet bulb temperature = 45 ºC

20 to 80%RH(ΔRH<30%/h)

Non-operating (mech.)

Non-operating (tape)

2-4

SONY AIT-5 drive SDX-1100V series Ver. 1.0

2.Specification

2.2.2. Altitude

Operating

0 to 10,000 feet

2.2.3. Suspended Particulate

Operating

Less than 150 microgram/m

Based Sampling period 24 hours

2.2.4. Vibration

Operating

Swept Sine 5 to 500Hz, @0.25G Peak 1 Octave/min.

3 axis, 3 directions

Non-operating

Swept Sine 5 to 500Hz, @ 0.5G Peak 1 Octave/min.

3 axis, 3 directions

2.2.5. Shock

Operating

No Data Loss

Half Sine

Performance

5 G Peak 3 ms

3 axes, 3 directions

*Interval 10 seconds

Non-operating

No Device Damage

Half Sine

90 G Peak 3 ms

(30 G Peak 11 ms)

3 axes, 3 directions

Interval 10 seconds

2.2.6. Acoustic Noise

The ambient noise level is no greater than 25 dB (A). The sound-meter on (A) scale is located 1m in front of the

center of the drive front panel. (A): A curve weight

Streaming Write/Read

Insert/Eject

35dB(A)

60dB(A)

2.2.7. EMC

EMI/EMS

Radiated Emissions /

EN 55022 / 94 + EN 55022 A1 / 95 class B

Conducted noise

Emissions

EMS

ESD

Discharge Voltage

(Front Panel Only,

integrated product)

Less than 15kV: No operation failure

Less than 20kV: No drive damage

2.2.8. Orientation

The SDX-1100V can be installed in three different mounting positions as shown in the figure below. Each position

has a maximum tolerance of ± 10 degrees.

SONY AIT-5 drive SDX-1100V series Ver.1.0

2-5

2.Specification

10 10

Figure 2-4: Mounting Attitude and Tolerance

2.3. Performance Specification

The data capacity, data transfer rate and data reliability specifications this chapter require the media to conform to

the AIT-3, AIT-3Ex, AIT-4 and AIT-5 Media Specification and also require the drive and media to remain within their

respective operating and non-operating environmental specifications. The specifications below also assume that

the C3 ECC frame (AIT-3) or C3 ECC fragment (AIT-3Ex, AIT-4 and AIT-5) is generated on writing and used as

necessary on reading, and further assumes that read-after-write rewrites are used as necessary on writing.

2.3.1. Data Capacity

The SDX-1100V includes a data compression capability. When data compression is enabled the drive capacity can

increase from 2 times to 3 times. The efficiency of the data compression depends on the actual data that is being

compressed and cannot be predicted precisely prior to compression.

Format

Native

Capacity

AIT-3 Standard Format

100.0 Gbyte typical When using 230 meter tape AIT-3 cassette (SDX3-100C)

Format

Native

Capacity

AIT-3Ex Standard Format

150.0 Gbyte typical When using 246 meter tape AIT-3Ex cassette (SDX3X-150C)

Format

Native

Capacity

AIT-4 Standard Format

200.0 Gbyte typical When using 246 meter tape AIT-4 cassette (SDX4-200C)

Format

Native

Capacity

AIT-5 Standard Format

400.0 Gbyte typical When using 246 meter tape AIT-5 cassette (SDX5-400C)

2-6

SONY AIT-5 drive SDX-1100V series Ver. 1.0

2.Specification

2.3.2. Data transfer Rate

2.3.2.1. Sustained Data Transfer Rate to and from the Tape

The sustained transfer rate to and from the tape is 24Mbyte per second with AIT-4 and AIT-5 cassette, 18Mbyte

per second with AIT-3Ex cassette, 16Mbyte per second with AIT-3 cassette. For this sustained rate to be achieved,

the drive must be streaming.

2.3.2.2. Burst Transfer Rate to and from the SCSI Bus

The SDX-1100V will transmit and receive data bursts to and from the SCSI bus at a maximum burst rate of

12Mbyte per second, using Ultra 160 asynchronous transfers and maximum of 160Mbyte per second, using

Ultra160 synchronous transfers.

2.3.3. Initialize Time

Initialize Time means the period from the time the drive is powered on to the time when the drive is ready and

waiting for a SCSI command such as INQUIRY or TEST UNIT READY. Initialize Time is less than 7 seconds.

The drive will respond with BUSY status until the completion of the Initialize Time. The Initialize Time does not

include the time necessary for drive diagnostics to complete and the drive to become ready for tape insertion.

2.3.4. Load Time

Load Time means the period from the time when the operator inserts a cassette into the drive to the time

when the drive is ready. The data in the below table represents the average time for SDX-1100V. The time it

may take for retrying is not reflected here.

SDX3-100C (230 m)

SDX3X-150C (246 m)

SDX4-200C (246 m)

SDX5-400C (246 m)

Load Time

40 sec

14 sec

2.3.5. Unload Time

Unload Time means the period from the beginning of the unload sequence caused by Unload Command or Eject

button to the time when a cassette is ejected from the slot. Unload Time does not include Rewind time. The data in

the below table represents the average time for SDX-1100V. The time it may take for retrying is not reflected here.

SDX3-100C (230 m)

SDX3X-150C (246 m)

SDX4-200C (246 m)

SDX5-400C (246 m)

Unload Time

24 sec

2.3.6. Search Time

Search Time means the period for the drive to find the position that is required by a command. This time also

depends on the tape length and the position of the head along the tape. The data in the below table represents the

average time for SDX-1100V. The time it may take for retrying is not reflected here.

SDX3-100C (230 m)

SDX3X-150C (246 m)

SDX4-200C (246 m)

SDX5-400C (246 m)

Search Time

130 sec

2.3.7. Rewind Time

Rewind Time means the period from the beginning to the end of rewinding sequence. This value depends on the

tape length and the position of the head along the tape. The data in the below table represents the average

time for SDX-1100V. The time it may take for retrying is not reflected here.

SDX3-100C (230 m)

SDX3X-150C (246 m)

SDX4-200C (246 m)

SDX5-400C (246 m)

Rewind Time

105 sec

115 sec

SONY AIT-5 drive SDX-1100V series Ver.1.0

2-7

2.Specification

2.3.8. Long Erase Time

Long Erase Time means the period from the beginning of the Erase (long) sequence caused by Erase Command

at BOT. The data in the below table represents the average time for SDX-1100V. The time it may take for retrying

is not reflected here.

SDX3-100C (230 m)

SDX3X-150C (246 m)

SDX4-200C (246 m)

SDX5-400C (246 m)

Long Erase Time

2 hrs

2.5 hrs

5 hrs

2.3.9. Error Rate

The un-correctable bit error rate is expected to be less than 1 in 10 to the 17th.

2.3.10. Definition of Failure

A failure is defined as any permanent manufacture of the drive that prevents the user from retrieving data from

tape. This includes failure to power up, failure to unload or eject a cassette, or failure to write and read data to and

from the tape, providing that both the drive and tape are being used within specification.

Faults are not considered failures when they are related to operator error mishandling and abuse, system-related

faults (cabling problems unsupported systems, operating software and so on) no trouble found, and transportation

damage.

2.3.11. Mean Time Between Failures

The Mean Time Between Failures (MTBF) for the SDX-1100V is 400,000 power-on hours, assuming a duty cycle

of 100%, where:

Tape Motion Time

DutyCycle =

×100

PowerOn Time

2.3.12. Mean Time to Repair

The Mean Time To Repair (MTTR) of the SDX-1100V is 30 minutes. Since at the field level the entire drive is

considered a Field Replaceable Unit (FRU) the time to replace the drive with a new one is less that 30 minutes.

2.3.13. Component Life

The specified life of the SDX-1100V is 5 years average.

2.3.14. Durability

The durability of the components in the SDX-1100V will exceed the number of operations listed on the following

table:

Start/Stop

Reposition

Thread/Unthread

Load/Eject

400,000 times

3,000,000 times

100,000 times

2-8

SONY AIT-5 drive SDX-1100V series Ver. 1.0

2.Specification

2.4. Safety

The SDX-1100V conforms to the following safety standards:

UL/cUL

UL60950

CE (LVD)

CE (EMC)

C-Tick (EMC)

EN60950-1

EN55024 + EN55022: Class B

EN55022: Class B

AS/NZS CISPR22: Class B

CISPR22 + CISPR24

CISPR22

MIC

RPC/DoC

IEC60950-1

CB report

IEC60950-1

2.4.1. Conditions of Acceptability

The SDX-1100V is for use only in equipment where the suitability of the combination has been determined by an

appropriate certification organization (for example, Underwriters Laboratories, Inc. or the Canadian Standards

Association in North America, and the British Standards Institution or Verband Deutscher Elektrotechniker in

Europe). Other considerations include the following:

1. An enclosure must be supplied to limit the operator’s access to live parts, to provide system stability, and to

furnish the drive with the necessary grounding integrity.

2. The necessary voltage supplies must be provided. These supplies are Extra Low Voltage SEC for UL and

CSA, or Safety Extra Low Voltage for BSI, VDE, and so on, of +5V and +12V DC.

2.5. Installation Requirements

Note: Do not move the drive while it is operating. It may cause malfunction.

2.5.1. Power Requirements

Voltage

Max Ripple

Current

Typical

Maximum

5V ± 5%

12V ± 10%

100 mV p-p

150 mV p-p

1.7A

0.87A

2.5A

3.0A

* exclude SCSI terminator power

4.75V

12V

10.8V

-300 ms < T < 300 ms

Figure 2-5: Power-up Sequence

Note: Voltage has to increase constantly during Power-up until Maximum is reached.

Do not turn off the drive while the tape is in the drive.

SONY AIT-5 drive SDX-1100V series Ver.1.0

2-9

2.Specification

2.6. Data Compression

The tape capacity is increased by compressing data prior to writing it to the tape. Data compression is a well

established technology for reducing the number of bits used to represent data in order to improve data transfer

rate as well as reduce the amount of storage space consumed by the data. The compression ratio depends on the

source file type. The SDX-1100V uses the ALDC Data Compression algorithm. ALDC is ECMA standard data

compression algorithm. (ECMA-222) The Data Compression control page allows the host computer to enable data

compression and decompression and also configure the way in which the drive responds to

compressed/uncompressed data boundaries on the tape. The AIT-3, AIT-3Ex, AIT-4 and AIT-5 Format allows both

compressed and uncompressed data to reside on the same tape.

The Sony SDX-1100V has a DIP switch to disable the Data Compression/ Decompression. After power-on reset

with this DIP switch set, both data compression and data decompression are disabled However, a MODE SELECT

command can override the setting of this DIP switch. After power-on reset without this DIP switch set, both data

compression and data decompression are enabled. (See clause 3.1.4)

2-10

SONY AIT-5 drive SDX-1100V series Ver. 1.0

3.Installation

3. Installation

3.1. Installation Guide

This Product Specification Manual is applicable for AIT-5 drive.

Dip switch

Jumpers

SCSI 68 pin Connector

Power Connector

Figure 3-1: DIP switch & Connector

SONY AIT-5 drive SDX-1100V series Ver.1.0

3-1

3.Installation

1 DR (Desaster Recovery) Mode

2 Emulation Mode

3 AIT Library Interface Mode

4 Reserved

5 Terminator Power (ON)

6 Periodic Cleaning Req (ON)

7 DC Control-1

OFF

8 DC Control-2

Figure 3-2: DIP Switch Positions

Table 3-1: Drive Mode

DIP SW

OFF

MODE

Normal

OFF OFF

OFF

OFF OFF

OFF OFF OFF

ON OFF OFF

ON OFF

DR Mode

SDX-900V Emulation Mode

Library Mode

Table 3-2: Periodic Cleaning Request (Refer to 4.6.1.2)

DIP SW 6

OFF

Definition

Disable Periodic Cleaning Request

Enable Periodic Cleaning Request

3.1.1. SCSI ID Number Jumper

The SCSI ID number of the SDX-1100V is selected by the SCSI ID number jumpers. The figure below shows the

jumper configuration for each of the possible SCSI IDs.

SCSI

ID3 ID2 ID1 ID0

Parity Disable

No Connection

ID3

ID2

ID1

ID0

Figure 3-3: Jumper positions

: = OPEN

| = CLOSED

Jumper not installed

Jumper installed

3.1.2. Termination Power Switch

Position 5 of DIP switch is used to set whether SDX-1100V provides the termination power to pin 17,18,51,52 on

SCSI bus, or not.

3-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

3.Installation

3.1.3. Parity Disable Jumper

Parity check function can be disabled by Jumper. Parity check is disabled while left end jumper is installed. Parity

generate function is always enabled.

Parity

Setting

Disable

Enable

: = OPEN

| = CLOSED

Jumper not installed

Jumper installed

3.1.4. Data Compression ON Switch

Data compression can be selected by DIP switch.

Table 3-3: Data Compression Switches

DC Control-2 Definition

DC Control-1

OFF

Compression disabled at power-on. The host is allowed to control

compression.

OFF

Compression disabled at power-on. The host is not allowed to

control compression.

Compression enabled at power-on. The host is allowed to control

compression.

Compression enabled at power-on. The host is not allowed to

control compression.

OFF

3.1.5. Power Connector

The power connector is illustrated as Figure 3-4.

4 3 2 1

5V GND GND 12V

Figure 3-4: Power Connector

3.1.6. SCSI 68 pin Connector

Figure 3-5 illustrates SCSI 68 pin connector, and table 3-4 shows the assignments for the pins of the connector.

Pin 34

Pin 68

Figure 3-5: Non-shielded SCSI Device Connector

SDX-1100V supports both Low-Voltage-Differential SCSI configuration as shown table 3-4 and Single-Ended SCSI

configuration as shown table 3-5. SDX-1100V detects and switches SCSI configuration between

Low-Voltage-Differential and single-ended modes by monitoring DIFFSENS signal assigned pin 16 in SCSI bus.

(Refer to table 3-4)

SONY AIT-5 drive SDX-1100V series Ver.1.0

3-3

3.Installation

Table 3-4: SDX-1100V SCSI Signals

(Low-Voltage-Differential Type BUS P Cable Signal Assignment)

Signal Name

Cable Conductor Number

Signal Name

-DB(12)

-DB(13)

-DB(14)

-DB(15)

-DB(P1)

-DB(0)

-DB(1)

-DB(2)

-DB(3)

-DB(4)

+DB(12)

+DB(13)

+DB(14)

+DB(15)

+DB(P1)

+DB(0)

+DB(1)

+DB(2)

+DB(3)

+DB(4)

+DB(5)

+DB(6)

+DB(7)

+DB(P)

GROUND

DIFFSENS

TERMPWR

RESERVED

GROUND

+ATN

GROUND

+BSY

+ACK

+RST

+MSG

+SEL

+C/D

+REQ

+I/O

-DB(5)

-DB(6)

-DB(7)

-DB(P)

GROUND

TERMPWR

RESERVED

GROUND

-ATN

GROUND

-BSY

-ACK

-RST

-MSG

-SEL

-C/D

-REQ

-I/O

-DB(8)

-DB(9)

-DB(10)

-DB(11)

+DB(8)

+DB(9)

+DB(10)

+DB(11)

3-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

3.Installation

Table 3-5: SDX-1100V SCSI Signals (Single-Ended Type BUS P Cable Signal Assignment)

Signal Name

-DB(12)

-DB(13)

-DB(14)

-DB(15)

-DB(P1)

-DB(0)

Cable Conductor Number

Signal Name

GROUND

TERMPWR

RESERVED

GROUND

-DB(1)

-DB(2)

-DB(3)

-DB(4)

-DB(5)

-DB(6)

-DB(7)

-DB(P)

GROUND

TERMPWR

RESERVED

GROUND

-ATN

GROUND

-BSY

-ACK

-RST

-MSG

-SEL

-C/D

-REQ

-I/O

-DB(8)

-DB(9)

-DB(10)

-DB(11)

SONY AIT-5 drive SDX-1100V series Ver.1.0

3-5

3.Installation

3.1.7. Attaching and Removing the Dust Cover

3.1.7.1. Attaching the Dust Cover

(1) Align the dust cover’s hinge clips (one on each side) with the pins of the drive bezel.

• The dust cover should be positioned so that the six magnets on the cover’s back face the drive bezel.

• Holding the dust cover at an angle as shown in the figure below, set the hinge clips on top of the bezel

pins, positioning them so that they bracket the pins.

(2) Press down at an angle on each side in turn until you hear the hinge clips click into place.

Caution:

Do not press the dust cover in horizontally from the side. Doing so could cause the dust cover to break.

(3) Close the dust cover.

This completes attachment of the dust cover.

3-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

3.Installation

3.1.7.2. Removing the Dust Cover

(1) Open the dust cover.

(2) Holding the dust cover at both corners, carefully raise the dust cover.

The dust cover hinge clips and drive bezel pins uncouple.

SONY AIT-5 drive SDX-1100V series Ver.1.0

3-7

3.Installation

This page intentionally left blank.

3-8

SONY AIT-5 drive SDX-1100V series Ver.1.0

4.Operation

4. Operation

4.1. Summary of LED Indications

The drive has 3 LEDs. Each LED shows "Tape Motion", "Cleaning Request", and "Replace Tape" as defined.

"Tape Motion" means to show the tape motion in the drive.

"Cleaning Request" to be on means that CLEANING is required.

"Replace Tape" to be on means that the tape needs to be replaced. It should be on when a medium error

occurred.

All of the three LEDs flash fast simultaneously when the drive is in malfunction.

The following table shows the meaning of each LED indications:

Table 4-1: Meaning of each LED indications

LED

Tape Motion

No Tape

Tape Loaded

Cleaning Request

Cleaning is Not Necessary

Cleaning Request

Replace Tape

No Media Error Occurred

Media Error Occurred

Off

Flash Slowly

Tape Access in Progress Cleaning is Not Completed

(Write/Read)

Flash Fast

Tape Access in Progress

(Others)

All LED Flash Fast

H/w Error Occurred

Flash Fast (0.3sec on/ 0.3sec off)

0.3 sec

Flash Slowly (0.9sec on/ 0.3sec off)

0.9sec

0.3sec

SONY AIT-5 drive SDX-1100V series Ver.1.0

4-1

4.Operation

4.2. Operator Action

4.2.1. Powering up the Drive

After the initial installation of the drive has been verified, power can be applied to the unit. The +12V and +5V

power must be applied simultaneously. (See Figure 2-5) The drive will execute a power-up diagnostic and then

comes ready.

Once the tape has been loaded the drive sends a CHECK CONDITION response on receipt of the next SCSI

command from the host. The UNIT ATTENTION key is set in the returned REQUEST SENSE data to indicate that

the tape may have been changed. (Sense Key/ASC/ASCQ = 06/28/00)

4.2.2. Inserting Cassettes

The operator inserts a cassette into the slot on the front panel. As the cassette is inserted, the drive takes it and

automatically loads it into the drive mechanism. The drive performs a tape load sequence as described in clause

4.3.1

4.2.3. Removing Cassettes

The cassette can be removed from the drive either in response to a SCSI UNLOAD command, or by pressing the

Eject button. The operator uses the Eject button to initiate the unload sequence (see clause 4.3.2). The

mechanism rewinds the tape to Beginning of Media (BOM), unthreads it, and ejects the cassette from the slot.

The operation of the Eject button is disabled if the host has previously sent a SCSI PREVENT ALLOW MEDIA

REMOVAL command with prevent bit set to one. In this case, pressing the Eject button has no effect, and

does not initiate an Unload sequence. The operation of the Eject button returns to normal operation following

receipt of an PREVENT ALLOW MEDIA REMOVAL command with prevent bit clear.

4.2.4. Hard Reset Hole

Hard reset hole

In case of emergency, you can immediately reset the drive itself by pushing the switch in the “Hard Reset Hole”

with the tip of a pin. However, there is a risk of losing data upon execution of this operation in the Write or Read

mode. The hardware reset operation is only for manufacturing and repair purposes.

4.2.5. Write-Protecting Cassettes

The cassettes can be write-protected by sliding the tab on the back of the cassette open. In this state, data can be

read from the tape but not written to it.

4-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

4.Operation

AIT-3/3Ex/4/5

4.3. Internal Function

4.3.1. The Load Sequence

During load sequence, the following occurs:

(1) The drive mechanism accepts the cassette and threads the tape. The tape is then moved to

Beginning-of-Tape(BOT). If the format is not AIT-3, AIT-3Ex, AIT-4 and AIT-5, the drive rewinds the tape to

BOT and awaits an UNLOAD command.

(2) Finally the drive goes on-line.

4.3.2. The Unload Sequence

The drive will always write any buffered data out to tape followed by an EOD prior to initiating the Unload

sequence.

During this sequence the tape is rewound to BOT and, if the tape is write-enabled, the copy of the tape log held in

RAM is written back to tape. The tape is then rewound to BOM and the tape unthreaded from the mechanism. At

this stage the tape is either retained in the drive or ejected, depending on media removal is enabled by the

Prevent Allow Media Removal command.

4.3.3. Power-Fail or SCSI Reset Handling

If there is a power-fail, the drive performs the following actions, and reverts to its default configuration:

(1) The drive remains positioned at the point where the power-fail or SCSI Reset occurred.

(2) It executes the Power-Up sequence of self-tests. (When power is restored.)

(3) The drive returns a CHECK CONDITION status for the first command after the power-fail or Reset. The next

command from the initiator should be a REQUEST SENSE. The drive will return sense data including a

sense key that will indicate that the drive has been reset. (Sense Key / ASC / ASCQ = 06/29/00)

SONY AIT-5 drive SDX-1100V series Ver.1.0

4-3

4.Operation

4.3.4. Diagnostic and Normal Status Displays

This clause describes LED displays while the drive is starting up. When the power is turned on, the drive will go

through its diagnostics to reach normal status. When a failure is detected during diagnostics, the LEDs show that

the drive is out of order and needs to be repaired.

4.3.4.1. Diagnostic Status Display

The drive starts with its Diagnostic function. This is made up of the Front Panel Test and the Kernel Test.

Front Panel Test

LED display sequence:

TAPE

CLEANING

REPLACE

MOTION

REQUEST

TAPE

0.3sec

Front Panel Test

Kernel Test

This function is for checking TAPE MOTION, CLEANING REQUEST and REPLACE TAPE LEDs and the related

circuits. No errors can be generated as this test is only for operator verification of indicator operation.

Kernel Test

After the Front Panel Test, the drive checks its internal units. When a Diagnostic error occurs, the drive must be

powered off. The drive will not work and should be checked or repaired immediately.

The purpose of the diagnostic is to test the drive electronics for functionality. If the diagnostic request comes from

the host through SCSI, then the results are reported through SCSI.

4.3.4.2. Normal Status Display

After the Diagnostic Display, when no failures are detected, the drive is in the Normal Status. The LEDs show

various Normal Status (No Error) indications as shown in the table below:

4-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

4.Operation

Table 4-2: Normal LED indications

LED

Tape Motion

No Tape

Tape Loaded

Cleaning Request

Cleaning is Not Necessary

Cleaning Request

Replace Tape

No Media Error Occurred

Media Error Occurred

Off

Flash Slowly

Tape Access in Progress Cleaning is Not Completed

(Write/Read)

Flash Fast

Tape Access in Progress

(Others)

All LED Flash Fast

H/w Error Occurred

4.4. Tape Alert

1. Tape Alert is a new specification for tape drive and library diagnostics. With this specification, any storage

software application can access detailed device diagnostic information and interpret the information in a

standard way.

2. Tape Alert information shall be accessed using LOG SENSE page 2Eh. Tape Alert configuration shall be

performed using MODE SELECT page 1Ch. The MODE SENSE and MODE SELECT configuration of the

Tape Alert interface is compatible with the information exceptions control page (1Ch). The application client

shall first check the tape drive to determine whether it supports the Tape Alert log page (0x2Eh). The default

application client access to the Tape Alert log page shall be performed using a polling method, with the page

control bits in the LOG SENSE command set to 00h.

3. At minimum, the Tape Alert log page shall be read from the tape drive/autoloader device for the following:

a. At the beginning of a Write/read job, even if the media is not loaded

b. Immediately after an unrecoverable error during the write/read job

c. At the end of each tape when the write/read job spans multiple tapes. If the tape is to be ejected then the

log page shall be read before the tape cartridge is ejected

d. At the end of a write/read job

4. The application client may also poll the Tape Alert log page at regular intervals (e.g. every 60 seconds) while

the tape drive is idle. The application client may use the Tape Alert mode page (1Ch) to configure other

access methods, depending on what options are supported by the tape drive.

5. Each time the application client reads the Tape Alert log page, it shall check all 64 flags to discover which are

set (there may be more than one). The definitions of the 64 flags are device type specific. There is one

definition for tape drive/autoloader devices, and a different definition for stand-alone changer devices (in

libraries). For each flag set, the application client shall communicate the defined error message and severity

for that flag to the user and log it. If multiple flags are set simultaneously, they shall be displayed together in

ascending order of severity. The information read in the Tape Alert flags shall not in itself cause the application

client to stop a current backup or restore operation.

4.5. Tape Format

The drive is an implementation of the Advanced Intelligent Tape format, a standard developed by Sony for 8mm

data storage drives.

AIT-3

- C1,C2, first and second level Error Correction Code, providing correction for random and Burst Symbol errors.

- C3 ECC, third level Error Correction Code, providing correction across frames within groups

AIT-3Ex, AIT-4, AIT-5

- C1, first level Error Correction Code, providing correction for random and Burst Symbol errors.

- C3 ECC, third level Error Correction Code, providing correction across frames within groups

- Read-After-Write, where data is verified immediately after it is written and re-written if there is any error.

- Randomizer, to reduce inter-symbol interference.

SONY AIT-5 drive SDX-1100V series Ver.1.0

4-5

4.Operation

4.6. Maintenance, Troubleshooting and Service

4.6.1. Head Cleaning

In case of SDX-1100V,a cleaning function which prevents and recovers from head contamination is built in the

drive. However, to keep optimum Read/Write performance, cleaning cassette is recommended to use.

4.6.1.1. Message When Cleaning Cassette is Necessary

When drive displays cleaning cassette requirement, (Cleaning Request LED is on or in case of SCSI, CLN bit is

set at Request Sense.) use specified cleaning cassette (model name: SDX5-CL)

4.6.1.2. The condition of Cleaning Request

Cleaning Request is required under the Condition of (1) and (2).

(1) Every 168 hours (7days x 24hours) of operation when Periodic Cleaning Request of DIP switch is On .

(2) When the rate of Rewrite/Reread is high.

4.6.1.3. Usage of Cleaning Cassette

(1) Drive displays cleaning cassette requirement.

(2) When specified cleaning cassette is inserted, automatic cleaning operation starts and when it’s over, the

cassette is ejected.

(3) One cleaning cassette can be used approximately 50 times in average.

(4) When the cleaning cassette is not ejected without doing cleaning, it is possible that there were no more

cleaning tape left. Since cleaning tape cannot be used twice, please insert new cleaning cassette in this

case.

(5) Cleaning casette can be inserted in other drives or consumer 8 mm drives, but you cannot expect good

effect.

(6) The drive will not eject cleaning cassette for consumer drives or for any other format. “Cleaning is Not

Completed” is indicated by the Cleaning Request LED.

4.6.2. Troubleshooting Guide

Problems encountered while operating the Sony SDX-1100V tape drive fall into two categories: Operational

problems and Read/Write problems.

Operational problems include any conditions that prevent the tape drive from operating. Operational problems

usually are discovered the first time the drive is installed on a system or when the system configuration is changed

or physically moved.

Read/Write problems include conditions that effect the transfer of data to and from the tape drive. Commands such

as REWIND, REQUEST SENSE and UNLOAD perform normally but data transfers fail.

The following clauses describe the recommended procedures for solving operational and read/write problems.

4.6.2.1. Operational Problems

The tape drive will not accept a tape cartridge.

Withdraw the tape cassette and turn the power to drive off, wait 5 seconds, then back on. Observe the drive for a

normal power up sequence (see clause 4.3.4). If the LEDs do not light, check the power supply and power cable

connection. If the drive completes the power on sequence normally but still won’t accept the tape cassette, the

drive may be defective.

A tape may already be in the drive. Tape LED is on. Press EJECT to remove the first tape. The power has been

removed from the drive with a tape loaded. When the power is restored to the drive, it will detect the tape and

rewind the tape to BOT. Press EJECT remove the cassette.

4-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

4.Operation

A tape is in the drive and will not eject.

If the SCSI command PREVENT ALLOW MEDIA REMOVAL (with Prevent bit set to one) has been sent to the

drive, the cartridge will be retained in the drive even after an UNLOAD command. The EJECT button is also

disabled. Send an PREVENT ALLOW MEDIA REMOVAL (with prevent bit clear) command, issue a SCSI bus

reset, or power the drive off and back on to override this condition.

If Tape is still in the drive after following the above procedure. the drive has a serious problem and should be

returned to Sony for repair with the tape in place.

Note: If it is absolutely mandatory that the tape cassette be removed prior to returning the drive for repair the

following Emergency Cassette Removal procedure should be followed:

Caution: This procedure should only be attempted by a mechanically qualified person and will probably result in

the tape being unusable. Do not proceed if further damage to the tape drive would be done.

Reel motor

Loading motor

Photo 1: Emergency Tape Removal Procedure

Emergency Cassette Removal Procedure

1. Remove the drive from the chassis or enclosure to allow access to the bottom of the drive.

2. Remove the drive’s top cover.

3. Locate the small opening in the bottom of the drive and insert the tip of a precision screwdriver so that the

Loading motor shaft can be rotated.

4. Rotate the motor shaft clockwise to bring the threading mechanism back to the initial position.

SONY AIT-5 drive SDX-1100V series Ver.1.0

4-7

4.Operation

Tape guide surface

Cartridge

Detail A

Photo 2: The Initial Position of the Threading Mechanism

Caution:

Stop rotating the motor shaft immediately, when the guide B (see detail A of Photo 2) gets to the area

below the line C-C (This line is defined by 2 circular tape guide surfaces of the cartridge).

Otherwise the gear of the drive can be damaged.

5. Before manual eject procedure, tape slack must be removed in order to prevent tape damage. Rotate the

gear mechanism located on the bottom of the drive counterclockwise to tighten the tape.

6. After the tape slack has been removed, continue to turn the Loading moter shaft located on the bottom of the

drive clockwise by a precision screwdriver until the tape cartridge is lifted out of the drive mechanism and is

ejected.

7. Return the drive to Sony for repair.

4-8

SONY AIT-5 drive SDX-1100V series Ver.1.0

4.Operation

The drive powers up properly and loads and unloads tapes but will not respond to any SCSI commands.

(A) If SCSI bus reset does not cause the drive to reset (same as power-on self test):

- Check the SCSI cable connectors

- Check SCSI cable pin one is aligned with the SCSI connector pin one

- Check for a broken cable or defective connector

- Try another known good SCSI device in the same location

(B) If SCSI bus reset causes the drive to reset then the problem is with the SCSI bus addressing or termination.

- Check that the SCSI bus ID jumper is set for the proper address (see clause 3.1.1)

- Check SCSI bus termination. The two SCSI devices at the ends of the bus should be terminated. No

other units should have terminators installed

Note: The strength of the SCSI bus signals can be affected if too many terminators are installed (Signal drivers

can be damaged as well)

4.6.2.2. Read/Write Problems

To prevent read/write errors, follow the cleaning recommendation in clause 4.6.1 If a read/write error occurs, a

combination of the following steps should correct the problem.

- Remove the tape.

- Clean the drive with the AIT cleaning cartridge.

- Load a new tape in the drive.

- Retry the operation.

Note: If these steps do not correct the problem the drive may be defective and should be returned to Sony for

service.

4.6.2.3. Replace Tape

When Media Error occur drive will indicate that tape is bad by turning on the Replace Tape LED. If this condition

occurs, a combination of the following steps should correct the problem.

- Remove the tape.

- Clean the drive with the AIT cleaning cartridge.

- Load a new tape in the drive.

- Retry the operation.

Note: If these steps do not correct the problem the drive may be defective and should be returned to Sony for

service.

4.6.2.4. Media Warning

When a Media Warning threshold is exceeded the drive will indicate that the tape is bad by flashing the Replace

Tape LED MEW (Media Warning) bit is 1. The indicator will be on for 0.9 seconds, off for 0.3 seconds. The Tape

Motion and Cleaning Request LEDs will operate normally. If this occurs, the data on the cassette should be copied

onto a new one and the old cassette discarded. This status is cleared by unloading the cassette.

4.6.3. Clearance for Service

All servicing is performed only after removal of the drive from is mounting. It is recommended that in mounting the

drive into a chassis provisions should be made to allow easy access to the mounting screws (see Figure 2-2).

4.6.4. Packaging for Return to Sony

The drive should be returned in its original packaging. Sony will not take responsibility for shipping damage

caused to an improperly packaged drive.

SONY AIT-5 drive SDX-1100V series Ver.1.0

4-9

4.Operation

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4-10

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

5. SCSI Interface

5.1. Introduction

The Sony SDX-1100V uses the SCSI interface to connect to the host system. The Small Computer System

Interface (SCSI) is an industry standard interface, approved by the American National Standards Institute (ANSI).

It is recommended that this document be used along with the ANSI standard document. The ANSI specification

defines the interface in general while this document describes the specific implementation for this unit. The SCSI

documents, listed in detail in clause 1.2, offer the information required to integrate this unit with SCSI-compatible

computer systems. This clause includes four sub-clauses:

• Introduction

• SCSI Bus Operation

• SCSI Messages

• SCSI Status

Note: The details of each SCSI Command are covered in Section 6.

The Introduction provides general, high-level information. For the hardware description and the installation

requirements, see Section 2.The SCSI protocol supported by the unit are covered in the Bus Operation, Message,

and Status clauses.

5.1.1. Overview of the SCSI Interface

The SCSI implementation provides the unit with a standard set of features and functions. These include:

• Asynchronous and Synchronous communication modes

• Single-ended / Differential Configurations

• Full implementation of Mandatory commands

• Implementation of most sequential non-Mandatory commands

• Ultra160 SCSI Interface

ii.

Cyclic Redundancy Check (CRC)

Double Transition Clocking (DT)

iii. Domain Validation

5.1.2. Supported Messages

The following messages are supported: (alphabetic order)

Abort

Bus Device Reset

Command Complete

Disconnect

Extended Message - Synchronous Data Transfer Request

Extended Message - Wide Data Transfer Request

Extended Message - Parallel Protocol Request

Identify (w/ & w/o disconnect)

Ignore Wide Residue

Initiator Detected Error

Message Parity Error

Message Reject

No Operation

Restore Pointers

Save Data Pointer

For implementation details on these messages, see clause 5.3.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-1

5.SCSI Interface

5.1.3. Supported Commands

The following commands are supported. They include all Mandatory and Extended commands, most Optional

commands.

Table 5-1: Supported SCSI Commands

Command Name

Operation Code

19h

ERASE

INQUIRY

12h

LOAD/UNLOAD

LOCATE

LOG SELECT

1Bh

2Bh

4Ch

4Dh

15h

LOG SENSE

MODE SELECT (6)

MODE SELECT (10)

MODE SENSE (6)

MODE SENSE (10)

PERSISTENT RESERVE IN

PERSISTENT RESERVE OUT

55h

1Ah

5Ah

5Eh

5Fh

1Eh

08h

PREVENT ALLOW MEDIUM REMOVAL

READ

READ ATTRIBUTE

READ BLOCK LIMITS

READ BUFFER

READ POSITION

RECEIVE DIAGNOSTIC RESULTS

RELEASE (6)

8Ch

05h

3Ch

34h

1Ch

17h

RELEASE (10)

57h

REPORT DENSITY SUPPORT

REPORT DEVICE IDENTIFIER

REPORT LUNS

REQUEST SENSE

RESERVE (10)

44h

A3h

A0h

03h

16h

RESERVE (10)

56h

REWIND

01h

SEND DIAGNOSTIC

SET DEVICE IDENTIFIER

SPACE

1Dh

A4h

11h

TEST UNIT READY

WRITE

WRITE ATTRIBUTE

WRITE BUFFER

00h

0Ah

8Dh

3Bh

10h

WRITE FILEMARKS

5-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

5.2. SCSI Bus Operation

5.2.1. Typical SCSI Operation

This example describes the typical SCSI bus sequence between the host and the drive.

1. After waiting for the bus clear time the Host arbitrates for the SCSI bus. It does this by asserting BSY and

the data line corresponding to its bus ID. If any other devices wish to compete for the bus, they also assert

BSY and the appropriate data line. Each arbitrating device then inspects the data bus. The device with the

highest ID wins the bus. All the other devices must release BSY and their data lines.

2. The Host attempts to select the target by asserting SEL and releasing BSY. The Host maintains its ID and

asserts the target’s ID on the data bus. Each target then checks the data lines. If the target’s ID matches that

on the data bus, it accepts selection by asserting BSY. Once the Host has detected BSY being asserted, it

asserts ATN to indicate that it wants the target to go to the MESSAGE OUT phase. The Host releases SEL.

3. The target now has control of the SCSI bus and it is the target which switches between phases. The target

responds to the ATTENTION condition and initiates the MESSAGE OUT phase. The Host sends an

IDENTIFY message which tells the target which logical unit the Host wishes to talk to. The fact that the

target responds to the ATN indicates to the Host that the target can accommodate more than just a

COMMAND COMPLETE message.

4. The target initiates the COMMAND phase and transfers the Command Descriptor Block from the Host. In the

COMMAND phase, the target decodes the command and either executes the command (TEST UNIT

READY) or sets itself up for a data transfer to the Host (READ, WRITE, and INQUIRY etc.). The target then

either switches to the STATUS phase, if the command is completed, or if it is ready to transfer data, the

DATA phase.

5. The data transfer length is set by the Host in the Command Descriptor Block. The target will remain in the

DATA phase until all the data is transferred.

6. The target then initiates a STATUS phase and transfers one byte to the Host to indicate whether the target

has successfully completed the command. If the target has detected an error, the next command that the

Host is expected to send is REQUEST SENSE. This allows the target to return further status information to

the Host.

7. The target completes the SCSI sequence by going to the MESSAGE IN phase and transferring a

COMMAND COMPLETE message to the Host. The target then releases BSY allowing the bus to go to the

BUS FREE state.

5.2.2. Disconnect

In order to improve bus usage and performance, the unit is capable of temporarily disconnecting from the bus,

consequently allowing other initiator-target communications to take place. To do so, however, the Host needs to

support Disconnect/ Re-select. The mechanism for performing the Disconnect/ Re-select procedure is

implemented as follows:

1. The Host arbitrates for the SCSI bus and upon winning the bus it proceeds to select target device. Prior to

releasing SEL and completing the selection phase, the Host asserts the ATN line. The Host then releases

SEL and BSY to allow the target to assume control of the SCSI bus. By asserting ATN, the host indicates

that the target should go to a MESSAGE OUT phase.

2. At this point, the target responds to the Host ATTENTION condition by initiating a MESSAGE OUT phase

and receiving a message from the Host which tells it whether or not the Host allows Disconnects for the

desired logical unit on the target.

3. If the Host does not send an Identify message, the target assumes that Disconnects are not permitted.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-3

5.SCSI Interface

4. The I/O activity from this point is controlled entirely by the target. The target initiates the COMMAND phase

and reads in the Command Descriptor Block (CDB) from the Host. If the Host has sent an Identify message

with the Disconnect permission bit set, then the target will immediately disconnect from the bus after the

entire CDB has been received.

5. The Disconnect process occurs when the target initiates a MESSAGE IN phase and sends a DISCONNECT

message back to the Host. This message may be preceded by a SAVE DATA POINTERS message byte if

the Disconnect is performed in the middle of the DATA phase. Following the MESSAGE IN phase, the target

frees the bus by releasing the BSY.

6. The host now waits for the target to perform Re-selection. When ready, the target re-selects the Host and

sends an Identify message via a MESSAGE IN phases, indicating the specific logical unit with which the

subsequent communications are to take place. Usually, the target will proceed from the MESSAGE IN phase

to either a DATA or a STATUS phase. If the Host had been previously told to SAVE DATA POINTERS, then

the target’s Identify message implies that the Host restores its data pointers upon re-selection; in other

words, it is not necessary for the target to send a specific RESTORE DATA POINTERS to the Host in such

context.

7. When doing a large data transfer, the target may choose to divide the entire transfer into several smaller

transfers. This allows the target to free the SCSI bus whenever it needs to perform its own system tasks not

immediately related to the actual data transfer over the SCSI bus. The target will not lock the bus into the

DATA phase if it is not presently ready to efficiently execute the transfer. After the data transfer is completed,

the target enters a STATUS phase and sends a single status byte to the Host. It then proceeds to a

MESSAGE IN phase, during which the target sends a COMMAND COMPLETE message. Finally, the target

frees the bus and the current command is considered completed.

8. The Host may change Disconnect permission at any time after the SELECTION phase by asserting ATN and

sending an Identify message via a MESSAGE OUT phase. If the Host, however, performs this action during

a DATA phase, it is possible that the target will not notice the change in Disconnect permission status until

past the end of the current bus phase.

5.3. Message Specification

This clause includes all SCSI messages. Both supported and non-supported messages are listed. Elements of this

clause come from clause 5, Logical Characteristics, of the SCSI standard. The message system allows

communication between an initiator and a target for the purpose of physical path management. The table below

lists the Messages supported by the SDX-1100V.

The SDX-1100V supports the Synchronous Data Transfer Request Extended Message, and the Wide Data

Transfer Request Message.

Table 5-2: Message Descriptions

Code

Description

Direction

Out

COMMAND COMPLETE

EXTENDED MESSAGE

SAVE DATA POINTER

RESTORE POINTERS

DISCONNECT

INITIATOR DETECTED ERROR

ABORT

MESSAGE REJECT

NO OP

MESSAGE PARITY ERROR

BUS DEVICE RESET

IGNORE WIDE RESIDUE

IDENTIFY

80-CO

5-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

5.3.1. COMMAND COMPLETE (00h)

This message is sent from a target to an initiator to indicate that the execution of a command or a series of linked

commands has completed and valid status has been sent to the initiator. After successfully sending this message,

the target goes to the BUS FREE phase by releasing BSY.

When received as a target, it will be handled as an illegal message, the unit will return MESSAGE REJECT and

will enter the status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.

5.3.2. EXTENDED MESSAGE (01h)

5.3.2.1. PARALLEL PROTOCOL REQUEST (04h)

PARALLEL PROTOCOL REQUEST messages are used to negotiate a synchronous data transfer

agreement, a wide data transfer agreement, and set the protocol options between two SCSI devices.

Negotiations using this message shall only be initiated by initiators. A Parallel Protocol Request message has

the following format:

PARALLEL PROTOCOL REQUEST

Bit

Byte

EXTENDED MESSAGE (01h)

EXTENDED MESSAGE LENGTH (06h)

PARALLEL PROTOCOL REQUEST (04h)

TRANSFER PERIOD FACTOR

RESERVED

REQ/ACK OFFSET

TRANSFER WIDTH EXPONENT (m)

RESERVED

QAS_REQ DT_REQ

IU_REQ

TRANSFER PERIOD FACTOR FIELD

Description

Code

Transfer period equals 12.5 ns (Fast-80 data is latched every 12.5 ns). This code is only

valid if the protocol options field has a value selected that supports double transition data

transfer (DT_REQ is one)

09h

0Ah

0Bh

0Ch

Transfer period equals 25 ns (Fast-40 data is latched every 25 ns or 30.3 ns).

Transfer period equals 30.3 ns (Fast-40 data is latched every 25 ns or 30.3 ns).

Transfer period equals 50 ns (Fast-20).

0Dh-18h

19h-31h

32h-FFh

Transfer period equals the period factor x 4 (Fast-20).

Transfer period equals the period factor x 4 (Fast-10).

Transfer period equals the period factor x 4

For single transition (ST) synchronous data transfer the REQ/ACK OFFSET is the maximum number of REQ

assertions allowed to be outstanding before a corresponding ACK assertion is received at the target. The size of a

data transfer may be 1 or 2 bytes depending on the values in the transfer width exponent field.

For double transition (DT) synchronous data transfer the REQ/ACK OFFSET is the maximum number of REQ

transitions allowed to be outstanding before a corresponding ACK transition is received at the target. The size of a

data transfer shall be 2 bytes.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-5

5.SCSI Interface

The TRANSFER WIDTH EXPONENT field defines the transfer width to be used during DATA IN phases, and

DATA OUT phases. The transfer width that is established applies to both SCSI devices. Valid transfer widths are 8

bits (m=00h) and 16 bits (m=01h) if all the protocol options bits are zero. The only valid transfer width is 16 bits

(m=01h) if any of the protocol options bits are one.

QAS_REQ bit is not supported and shall be set to zero.

IU_REQ bit is not supported and shall be set to zero.

DT_REQ bit of zero indicates that DT DATA phases are to be disabled when received from the initiator and that DT

DATA phases are disabled when received from the target. A DT_REQ bit of one indicates that DT DATA phases

are to be enabled when received from the initiator and that DT DATA phases are enabled when received from the

target.

A data transfer agreement only applies to the two SCSI devices that negotiate the agreement. Separate data

transfer agreements are negotiated for each pair of SCSI devices. The data transfer agreement only applies

to DATA phases.

A PARALLEL PROTOCOL REQUEST message exchange shall be initiated by an initiator whenever a previously

arranged parallel protocol agreement may have become invalid. The agreement becomes invalid after any

condition that may leave the parallel protocol agreement in an indeterminate state such as:

a) After a hard reset

b) After a TARGET RESET message

c) After a power cycle

d) After a change in the transceiver mode (e.g., LVD mode to SE mode)

5.3.2.2. SYNCHRONOUS DATA TRANSFER REQUEST (01h)

This is sent by either the initiator or the target as the first byte of a multiple-byte message. When acting as an

initiator, the unit will not send any Extended Messages. No Vendor Unique codes are implemented and only the

Synchronous Data Transfer Request code is supported. Any other message code is handled as an illegal

message; the unit will return MESSAGE REJECT and will continue. A Synchronous Data Transfer Request

message has the following format:

Table 5-3: Synchronous Data Transfer Request

Byte

Value

01h

03h

01h

Description

Extended message

Extended message length

SYNCHRONOUS DATA TRANSFER REQUEST code

Transfer period (m times 4 nanoseconds)

REQ/ACK offset

A SYNCHRONOUS DATA TRANSFER REQUEST (SDTR) message exchange shall be initiated by a SCSI device

whenever a previously-arranged data transfer agreement may have become invalid. The agreement becomes

invalid after any condition which may leave the data transfer agreement in an indeterminate state such as:

(1) after a hard reset condition

(2) after a BUS DEVICE RESET message and

(3) after a power cycle.

In addition, a SCSI device may initiate an SDTR message exchange whenever it is appropriate to negotiate a new

data transfer agreement (either synchronous or asynchronous). SCSI devices that are capable of synchronous

data transfers shall not respond to an SDTR message with a MESSAGE REJECT message.

The SDTR message exchange establishes the permissible transfer periods and the REQ/ACK offsets for all logical

units and target routines on the two devices. This agreement only applies to data phases. The transfer period

factor times four is the value of the transfer period.

Transfer period is the minimum time allowed between leading edges of successive REQ pulses and of successive

ACK pulses. The SDX-1100V supports the following transfer periods:

5-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

Table 5-4: Synchronous Data Transfer Rates

Transfer Period (hex)

Transfer Rate (MB/s) - narrow

Transfer Rate (MB/s)- wide

160

40.0 20.0 10.0

80.0 40.0 20.0 16.0 13.34 11.42 10.00 8.88

8.0

6.67 5.71 5.00 4.44

REQ/ACK offset: is the maximum number of REQ pulses allowed to be outstanding before the leading edge of its

corresponding ACK pulse is received at the target. A REQ/ACK offset value of ZERO shall indicate asynchronous

data transfer mode. The SDX-1100V supports synchronous data transfer REQ/ACK offset values from 1 to 127.

The originating device (the device that sends the first of the pair of SDTR messages) sets its values according to

the rules above to permit it to receive data successfully. If the responding device can also receive data

successfully with these values (or smaller transfer periods or larger REQ/ACK offsets or both), it returns the same

values in its SDTR message. If it requires a larger transfer period, a smaller REQ/ACK offset, or both in order to

receive data successfully, it substitutes values in its SDTR message as required, returning unchanged any value

not required to be changed. Each device when transmitting data shall respect the limits set by the other’s SDTR

message, but it is permitted to transfer data with larger transfer periods, smaller REQ/ACK offsets, or both than

specified in the other’s SDTR message. The successful completion of an exchange of SDTR messages implies an

agreement as follows:

Responding Device SDTR response

Implied Agreement

(1) Non-ZERO REQ/ACK offset

Each device transmits data with a transfer period equal to or

greater than and a REQ/ACK offset equal to or less than the

values received in the other device’s SDTR message.

Asynchronous transfer

(2) REQ/ACK offset equal to ZERO

(3) MESSAGE REJECT message

Asynchronous transfer

If the initiator recognizes that negotiation is required, it asserts the ATN signal and sends a SDTR message to

begin the negotiating process. After successfully completing the MESSAGE OUT phase, the target shall respond

with the proper SDTR message. If an abnormal condition prevents the target from returning an appropriate

response, both devices shall go to asynchronous data transfer mode for data transfers between the two devices.

Following target response (1) above, the implied agreement for synchronous operation shall be considered to be

negated by both the initiator and the target if the initiator asserts the ATN signal and the first message out is either

MESSAGE PARITY ERROR or MESSAGE REJECT. In this case, both devices shall go to asynchronous data

transfer mode for data transfers between the two devices. For the MESSAGE PARITY ERROR case, the implied

agreement shall be reinstated if a re-transmittal of the second of the pair of messages is successfully

accomplished. After two retry attempts, if the target receives a MESSAGE PARITY ERROR message, it shall

terminate the retry activity. This may be done either by changing to any other information transfer phase and

transferring at least one byte of information or by going to the BUS FREE phase. The initiator shall accept such

action as aborting the negotiation, and both devices shall go to asynchronous data transfer mode for data transfer

between the two devices.

If the target recognizes that negotiation is required, it sends an SDTR message to the initiator. Prior to releasing

the ACK signal on the last byte of the SDTR message from the target, the initiator shall assert the ATN signal and

respond with its SDTR message or with a MESSAGE REJECT message. If an abnormal condition prevents the

initiator from returning an appropriate response, both devices shall go to asynchronous data transfer mode for

data transfers between the two devices.

Following an initiator's responding SDTR message, an implied agreement for synchronous operation shall not be

considered to exist until the target leaves the MESSAGE OUT phase, indicating that the target has accepted the

negotiation. After two retry attempts, if the target has not received the initiator's responding SDTR message, it

shall go to the BUS FREE phase without any further information transfer attempt. This indicates that a catastrophic

error condition has occurred. Both devices shall go to asynchronous data transfer mode for data transfer between

the two devices.

If, following an initiator's responding SDTR message, the target shifts to MESSAGE IN phase and the first

message in is MESSAGE REJECT, the implied agreement shall be considered to be negated and both devices

shall go to asynchronous data transfer mode for data transfers between the two devices.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-7

5.SCSI Interface

The implied synchronous agreement shall remain in effect until a BUS DEVICE RESET message is received, until

a hard reset condition occurs, or until one of the two SCSI devices elects to modify the agreement. The default

data transfer mode is asynchronous data transfer mode. The default data transfer mode is entered at power on,

after a BUS DEVICE RESET message, or after a hard reset condition.

5.3.2.3. WIDE DATA TRANSFER REQUEST

Byte

Value

Extended message

Extended message length

WIDE DATA TRANSFER REQUEST code

Transfer Width exponent

A WIDE DATA TRANSFER REQUEST (WDTR) message exchange shall be initiated by a SCSI device whenever

a previously-arranged transfer width agreement may have become invalid. The agreement becomes invalid after

any condition which may leave the data transfer agreement in an indeterminate state such as:

(1) after a hard reset condition;

(2) after a BUS DEVICE RESET message and;

(3) after a power cycle.

In addition, a SCSI device may initiate a WDTR message exchange whenever it is appropriate to negotiate a new

transfer width agreement. SCSI devices that are capable of wide data transfers (greater than eight bits) shall not

respond to a WDTR with a MESSAGE REJECT message.

The WDTR message exchange establishes an agreement between two SCSI devices on the width of the data

path to be used for DATA phase transfers between the two devices. This agreement applies to DATA IN and DATA

OUT phases only. All other information transfer phases shall use an eight-bit data path.

If a SCSI device implements both wide data transfer option and synchronous data transfer option, then it shall

negotiate the wide data transfer agreement prior to negotiating the synchronous data transfer agreement. If a

synchronous data transfer agreement is in effect, then a SCSI device that accepts a WDTR message shall reset

the synchronous agreement to asynchronous mode.

The transfer width is two to the transfer width exponent bytes wide. The transfer width that is established applies

to logical units on both SCSI devices. Valid transfer widths are 8 bits (m=00h), and 16 bits (m=01h). Values of

m=02 and greater are reserved.

The originating SCSI device (the SCSI device that sends the first of the pair of WDTR messages) sets its transfer

width value to maximum data path width it elects to accommodate. If the responding SCSI device can also

accommodate this transfer width, it returns the same value in its WDTR message. If it requires a smaller transfer

width, it substitutes the smaller value in its WDTR message. The successful completion of an exchange of WDTR

messages implies an agreement as follows:

Responding device WDTR response

Implied agreement

a) Non-ZERO transfer width

Each device transmits and receives data with a transfer

width equal to the responding SCSI device's transfer width.

Eight -bit data transfer

b) Transfer width equal to ZERO

c) MESSAGE REJECT message

Eight -bit data transfer

If the initiator recognizes that negotiation is required, it asserts the ATN signal and sends a WDTR message to

begin the negotiating process. After successfully completing the MESSAGE OUT phase, the target shall respond

with the proper WDTR message. If an abnormal condition prevents the target from returning an appropriate

response, both devices shall go to eight-bit data transfer mode for data transfers between the two devices.

5-8

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

Following target response (1) above, the implied agreement for wide data transfers shall be considered to be

negated by both the initiator and the target if it the initiator asserts ATN and the first message out is either

MESSAGE PARITY ERROR or MESSAGE REJECT. In this case, both devices shall go to eight-bit data transfer

mode for data transfers between the two devices. For the MESSAGE PARITY ERROR case, the implied

agreement shall be reinstated if a re-transmittal of the second of the pair of messages is successfully

accomplished. After a vendor-specific number of retry attempts (greater than ZERO), if the target receives a

MESSAGE PARITY ERROR message, it shall terminate the retry activity. This may be done either by changing to

any other information transfer phase and transferring at least on byte of information or by going to the BUS FREE

phase. The initiator shall accept such action as aborting the negotiation and both devices shall go to eight -bit data

transfer mode for data transfers between the two devices.

The implied transfer width agreement shall remain in effect until a BUS DEVICE RESET message is received, until

a hard reset condition occurs, or until one of the two SCSI devices elects to modify the agreement. The default

data transfer width is eight-bit data transfer mode. The default data transfer mode is entered at power on m, after a

BUS DEVICE RESET message, or after a hard reset condition.

5.3.3. SAVE DATA POINTER (02h)

This message is sent from a target to the initiator at the end of a Data Phase to request that the initiator save a

copy of the present active data pointer for the currently attached logical unit. The unit will accept this message

when in the initiator mode. As a target, it will send this message prior to a disconnect. When received as a target, it

will be handled as an illegal message, the unit will return MESSAGE REJECT and will enter the status phase

reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.

5.3.4. RESTORE POINTERS (03h)

This message is sent from a target to direct the initiator to restore the most recently saved pointers for the

currently attached logical unit to the active state. Pointers to the command, data, and status locations for the

logical unit will be restored to the active pointers. Command and status pointers will be restored to the beginning of

the present command and status areas. The data pointer will be restored to the value at the beginning of the data

area in the absence of a SAVE DATA POINTER message or to the value at the point at which the last SAVE DATA

POINTER message occurred for that logical unit.

The unit sends a RESTORE POINTERS message. Rather, it relies on the implicit restore pointers inherent in a

re-selection.

When acting as initiator, the unit will accept a RESTORE POINTERS message before resending a previously

unsuccessful status or data transfer. It doesn’t send a RESTORE POINTERS for re-selection but relies on the

implicit restore pointers in re-selection.

When received as a target, it will be handled as an illegal message; the unit will return MESSAGE REJECT and

will continue.

5.3.5. DISCONNECT (04h)

This message is sent from a target to inform an initiator that the present physical path is going to be broken (the

target plans to disconnect by releasing BSY). Later, reelection will be required in order to complete the current

operation.

Note: The initiator detects a catastrophic error condition when the BUS FREE phase occurs (other than as result

of a RESET condition) without first receiving a DISCONNECT or COMMAND COMPLETE message. If the target

intentionally creates this condition, the target clears the current command. This message does not cause the

initiator to save the data pointer.

The unit will support this message as an initiator. As a target, the unit supports this message and will disconnect if

allowed by the initiator.

When received as a target, it will be handled as an illegal message; the unit will return MESSAGE REJECT and

will continue.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-9

5.SCSI Interface

5.3.6. INITIATOR DETECTED ERROR (05h)

This message is sent from an initiator to inform a target that an error (e.g.: parity error) has occurred that does not

prevent the target from re-trying the operation. At this point, present pointer integrity is not assured. A RESTORE

POINTERS message or a disconnect followed by a re-selection, will cause the pointers to be restored to their

previously defined state.

This message will not be sent by the drive, when the drive is acting as an initiator. When received as a target the

unit will enter the status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.

5.3.7. ABORT (06h)

This message is sent from the initiator to the target to clear the present operation. All pending data and status from

the affected logical unit is cleared, and the target goes to the BUS FREE phase. This message can be sent to a

logical unit that is not currently performing an operation for the initiator.

A transaction which has not yet been acknowledged with a good Status byte will cause the transaction to be

aborted. If a transaction has already been acknowledged, the abort will force a Write of any pending data. The

device will proceed directly to BUS FREE state.

5.3.8. MESSAGE REJECT (07h)

This message is sent from either the initiator or target to indicate that the last message it received was

inappropriate or has not been implemented.

In order to indicate its intentions of sending this message, the initiator asserts the ATN signal prior to its release of

ACK for the REQ ACK handshake of the message that is to be rejected. Message Reject is issued in response to

any messages which the unit considers to be illegal or not supported. The illegal message will cause the current

command to be aborted and the unit will enter the status phase reporting CHECK CONDITION with the sense key

set to COMMAND ABORTED.

When received as a target, if the unit was previously in Message In phase (i.e.: sending messages to the host)

then MESSAGE REJECT will cause the unit to go straight to the Status phase with a CHECK CONDITION status

and a sense key of COMMAND ABORTED. If the unit was not previously in Message In phase then MESSAGE

REJECT will be handled as an illegal message.

If the initiator sends MESSAGE REJECT message in response to the units DISCONNECT message, the unit will

disable disconnects for the rest of the nexus and continue.

5.3.9. NO OPERATION (08h)

This message is sent by an initiator in response to a target’s request for a message when the initiator does not

currently have any other valid message to send. This message is accepted when the drive is acting as a target,

and may be sent when it is an initiator. When a NO-OP is received during any phase, the unit will continue as

though nothing had happened.

5.3.10. MESSAGE PARITY ERROR (09h)

This message is sent from the initiator to the target to indicate that one or more bytes in the last message it

received had a parity error.

To indicate its intentions of sending this message, the initiator will send the ATN signal prior to its release of ACK

for the REQ/ACK handshake of the message that has the parity error. This provides an interlock so that the target

can determine which message has the parity error.

This message will not be sent by the drive, when the drive is acting as an initiator. When received as a target, the

unit will enter the Status phase reporting CHECK CONDITION with the sense key set to COMMAND ABORTED.

5-10

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

5.3.11. BUS DEVICE RESET (0Ch)

This message is sent from an initiator to direct a target to clear all current commands. Upon recognizing this

message, the currently executing command will be aborted and the drive will proceed to the BUS FREE state. The

drive will then execute a hard reset which will leave the drive in a state as if it had been power-cycled. All data in

the buffer will be written to tape before the reset is performed.

A BUS DEVICE RESET message should be used to reset the drive, rather than a hard reset, as this will only reset

the drive rather than all the devices on the bus.

Due to the catastrophic nature of this command, it should be used cautiously in a multiple initiator system.

5.3.12. IDENTIFY (80h-FFh)

These messages are sent by either the initiator or the target to establish the physical connection path between an

initiator and target for a particular logical unit. This message byte can have the following bits set:

Bit 7

Bit 6

This bit is always set to one to distinguish these messages from other messages.

This bit is only set to one by the initiator. When set to one, it indicates that the initiator has the ability to

disconnect and reconnect.

Bit 5

LUNTAR: This bit is always ZERO to indicate that the LUNTRN field below is valid.

Bits 4-3 Reserved.

Bits 2-0 LUNTRN: These bits specify a logical unit number in a target, and must always be set to ZERO as the

unit is a single target, single logical unit device on the SCSI bus. The Logical Unit Number for the drive

is fixed and is set to ZERO. Any other value will cause the unit to enter the status phase reporting

CHECK CONDITION with the sense key set to COMMAND ABORTED.

Therefore, only the values 80h and C0h are supported.

When sent from a target to an initiator during reconnection, an implied RESTORE POINTERS message will be

performed by the initiator prior to completion of this message, since at no time will a RESTORE POINTERS be

sent.

5.3.13. IGNORE WIDE RESIDUE (23h)

Table 5-5: Ignore Wide Residue Message

Byte

Value

Message Code

Ignore

The IGNORE WIDE RESIDUE message (see table 5-5) shall be sent from the SDX-1100V to indicate that the

number of valid bytes sent during the last REQ/ACK handshake and REQB/ACKB handshake of a DATA IN phase

is less than the negotiated transfer width. The ignore field indicates the number of invalid data bytes transferred.

This message shall be sent immediately following that DATA IN phase and prior to any other messages. The

ignore field is defined in table 5-6. More than one IGNORE WIDE RESIDUE message may occur during an I/O

process.

Table 5-6: Ignore Field

Ignore

Invalid data bits

16-bit transfers

Reserved

00h

01h

DB (15-8)

02-FFh

Reserved

Even though a byte is invalid its corresponding parity bit shall be valid for the value transferred.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-11

5.SCSI Interface

5.4. Status Specification

A Status byte is sent from the drive to the Host during the STATUS phase at the termination of each command as

specified in the SCSI specification, unless the command has been cleared by an ABORT message, by a BUS

DEVICE RESET message, or by a hard RESET.

The Status bytes that will be return are:

00h

02h

GOOD: This status indicates that the drive has successfully completed the command.

CHECK CONDITION: Any error, exception, or abnormal condition that causes sense data to be set

returns CHECK CONDITION. The REQUEST SENSE command should be sent following this status to

determine the nature of the error.

08h

BUSY: The drive is busy. This status is returned whenever the drive is unable to accept a command from

an otherwise acceptable initiator. The BUSY status will be returned by the unit, if, while it is

DISCONNECTED from the SCSI bus, it receives a command from a different initiator. The unit does not

stack commands and therefore will not accept the next command until the current one has completed.

Note that if an initiator sends overlapped commands to the unit (i.e.: it sends a new command while the

previous one is still executing and the unit is disconnected) then the first command will be aborted and a

CHECK CONDITION will be returned to the initiator to indicate that the command was aborted. The

second command will NOT be executed.

The BUSY status returned by the drive must not be confused with DRIVE NOT READY. DRIVE NOT

READY will be returned as part of the Sense data following a REQUEST SENSE command and

indicates that the drive is off-line and no media is loaded in the drive.

The drive is deemed off-line if the tape is currently unloaded and, normally, ejected from the drive.

However, the drive will still be off-line if the tape has been retained within the drive following a Host

issued PREVENT MEDIA REMOVAL command prior to the unload.

In the off-line state, the Host cannot perform any operation which would cause tape motion. These

commands will return a CHECK CONDITION status with a DRIVE NOT READY sense key set. The

command types which are not allowed are write, read, verify or space commands. The Host may load

the tape when the unit is off-line so long as the tape has been prevented from being ejected via the

PREVENT/ALLOW MEDIA REMOVAL command.

While the drive is “Busy” the Host may issue any command, including diagnostic commands, which do

not access the tape and a GOOD status shall be returned. These commands are:

INQUIRY

LOG SELECT

LOG SENSE

MODE SELECT

MODE SENSE

PREVENT ALLOW MEDIUM REMOVAL

READ BLOCK LIMITS

READ BUFFER

RECEIVE DIAGNOSTIC RESULTS

RELEASE UNIT

REQUEST SENSE

RESERVE UNIT

SEND DIAGNOSTIC

WRITE BUFFER

The TEST UNIT READY command is used to determine the on-line/off-line state of the drive and will,

therefore, return a CHECK CONDITION status with a DRIVE NOT READY sense key set if no media is

currently loaded.

5-12

SONY AIT-5 drive SDX-1100V series Ver.1.0

5.SCSI Interface

10h

18h

INTERMEDIATE GOOD: This status is returned for every command in a series of linked commands

(except the last command), unless an error, exception or abnormal condition causes a CHECK

CONDITION status or RESERVATION CONFLICT status to be set. If this status is not returned, the

chain of linked commands is broken; no further commands in the series are executed.

RESERVATION CONFLICT: This status is returned by the drive whenever the host or another SCSI

device attempts to access the drive if it has been reserved via the RESERVE command.

SONY AIT-5 drive SDX-1100V series Ver.1.0

5-13

5.SCSI Interface

This page intentionally left blank.

5-14

SONY AIT-5 drive SDX-1100V series Ver.1.0

6.Command Specification

6. Command Specification

This clause includes all supported SCSI Commands. Elements of this clause come from clauses 7, 8 and 9 of the

ANSI NCITS 351-2001 (SPC-2), ANSI NCITS 408-2005 (SPC-3), ANSI NCITS.335:2000 (SSC), SCSI interface

specification.

The following is a list of the supported SCSI Commands and page index:

Table 6-1: SCSI Commands and Page Index

PARA

6.1

6.2

6.3

6.4

6.5

6.6

6.7

SCSI COMMAND

ERASE

INQUIRY

LOAD /UNLOAD

LOCATE

OP CODE

19h

12h

1Bh

2Bh

4Ch

4Dh

15h

55h

1Ah

5Ah

5Eh

5Fh

1Eh

08h

8Ch

05h

3Ch

34h

1Ch

17h

57h

44h

A3h

A0h

02h

03h

16h

56h

01h

0Ch

1Dh

A4h

11h

PAGE

6-2

6-3

6-8

6-10

6-11

6-13

6-40

6-54

6-57

6-60

6-62

6-63

6-65

6-69

6-70

6-73

6-75

6-77

6-79

6-82

6-83

LOG SELECT

LOG SENSE

MODE SELECT (6)

MODE SELECT (10)

MODE SENSE (6)

MODE SENSE (10)

PERSISTENT RESERVE IN

PERSISTENT RESERVE OUT

PREVENT ALLOW MEDIUM REMOVAL

READ

READ ATTRIBUTE

READ BLOCK LIMITS

READ BUFFER

READ POSITION

RECEIVE DIAGNOSTIC RESULTS

RELEASE (6)

6.8

6.9

6.10

6.11

6.12

6.13

6.14

6.15

6.16

6.17

6.18

6.19

6.20

6.21

RELEASE (10)

REPORT DENSITY SUPPORT

REPORT DEVICE IDENTIFIER

REPORT LUNS

REQUEST BLOCK ADDRESS (obsolete)

REQUEST SENSE

RESERVE (6)

6.22

6.23

6.24

6-84

6-93

6-95

RESERVE (10)

REWIND

SEEK BLOCK (obsolete)

SEND DIAGNOSTIC

SET DEVICE IDENTIFIER

SPACE

TEST UNIT READY

VERIFY (obsolete)

WRITE

WRITE ATTRIBUTE

WRITE BUFFER

WRITE FILEMARKS

6.25

6.26

6.27

6.28

6-96

6-98

6-99

6-102

00h

13h

0Ah

8Dh

3Bh

10h

6.29

6.30

6.31

6.32

6-103

6-104

6-106

6-108

Note: In compliance with the SCSI specification, the unit will terminate the command with a CHECK

CONDITION status and the sense key will be set to ILLEGAL REQUEST when a reserved bit, byte, field or

code is not ZERO.

The unit has an embedded SCSI controller interface and therefore is a single target, single logical unit device on

the SCSI bus. The Obsolete for the drive is fixed and is set to ZERO. In order to be SCSI-2 or SCSI-3 compatible,

the following scheme is used to check the LUN:

SCSI-2 states that the LUN addressed by the initiator will appear in the IDENTIFY message sent to the target on

selection. LUN field inside of CDB will be “obsolete”.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-1

6.Command Specification

ERASE

6.1. ERASE 19h

Bit

Byte

Operation Code (19h)

Reserved

Immed

Long

Reserved

Control

The ERASE command causes part or all of the remaining data within a partition to be erased at the current logical

position. Any write data that is currently held in the buffer is written to tape before the ERASE is executed.

Immed: If the Immed bit is set to ZERO, the drive will not return status until the selected operation has completed.

If the bit is set, status will be returned as soon as the operation has been initiated.

Long: If the Long bit is set to ONE, it will be written from the current logical position until EOM/EOP. If the Long bit

is set to ZERO, EOD will be written to the current logical position.

6-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

INQUIRY

6.Command Specification

6.2. INQUIRY 12h

Bit

Byte

Operation Code (12h)

Reserved

CmdDT

EVPD

Page or Operation Code

Reserved

Allocation Length

Control

The INQUIRY command requests that the drive send information regarding the drive parameters to the initiator.

CmdDT: The Command support data (CmdDT) bit of one specifies that the drive returns the optional support data

specified by the operation code field.

EVPD: The Enable Vital Product Data (EVPD) bit of one specifies that the drive returns the optional vital product

data specified by the page code field.

If both the CmdDT and EVPD bits are zero, the drive returns the standard INQUIRY data. If the page or operation

code field is not zero when both CmdDT and EVPD are zero, the drive returns a CHECK CONDITION status with

an ILLEGAL REQUEST Sense Key.

If the CmdDT and EVPD bits are one, the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST

Sense Key.

When the EVPD bit is set to one, the drive returns vital product data that is specified in the page or operation code

field. If the page or operation code field is reserved or not implemented by the target, the target will terminate the

command with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST.

When the CmdDT bit is set to one, the page or operation field specifies the SCSI operation code for which the

drive will return command support data.

Allocation Length: This specifies the maximum number of bytes that the initiator has allocated for returned

Inquiry data. An Allocation Length of ZERO indicates that no Inquiry data is transferred. This condition is not

considered an error. The drive will terminate the DATA-IN phase when Allocation Length bytes have been

transferred or when all available Inquiry data have been transferred to the initiator, whichever is less.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-3

6.Command Specification

INQUIRY

Table 6-2: Standard INQUIRY Data

Bit

Byte

Peripheral Qualifier

Peripheral Device Type (01h)

Device-Type Modifier (0)

RMB(1)

ISO Version (0)

AENC (0) TrmIOP

ECMA Version (0)

Reserved(0)

ANSI-Approved Version (3)

Response Data Format (2)

Additional Length (34h)

Reserved

Addr16

(1)

RelAdr (0) Reserved WB16 (1) Sync (1) Linked (0) Reserved CmdQ (0) SftRe (0)

(MSB)

Vendor Identification

(SONY)

Product Identification

(SDX-1100)

(LSB)

Product Revision Level

Reserved

Drive Mode

(DR-10)

Reserved

CLOCKING (11b)

QAS (0)

IUS (0)

Peripheral Qualifier and Peripheral Device Type: These fields identify the device that is currently connected to

the logical unit. The drive is a single target, single logical unit device. The logical unit number is set to ZERO.

Therefore, the drive normally returns Peripheral Qualifier set to 000b the specified peripheral device type is

currently connected to this logical unit and Peripheral Device Type set to 01h sequential-access device .However,

if the initiator requests a logical unit number greater than ZERO, the drive returns Peripheral Qualifier set to 011b

the target is not capable of supporting a physical device on this logical unit and Peripheral Device Type set to 1Fh

unknown device type.

RMB: The Removable Medium bit of one indicates that the tape can be removed.

Device-Type Modifier: This is a seven-bit user defined code, set to 00h.

ISO Version: This field is ZERO, indicating that the drive does not necessarily comply with the ISO version of

SCSI.

ECMA VERSION: This field is ZERO, indicating that the drive does not necessarily comply with the ECMA version

of SCSI.

ANSI Approved Version: This field indicates the implemented version of the ANSI version.

AENC: The drive does not support asynchronous event notification, so this field is ZERO.

TrmIOP: The drive does not support the Terminate I/O Process message, so this field is ZERO.

Response Data Format: This field is 2, indicating that the INQUIRY DATA format complies with the ANSI version

of SCSI-2.

Additional length: The additional length field specifies the length in bytes of the parameters, in this case, 31

bytes.

RelAdr: The drive does not support the Relative Addressing mode, so this bit is never set.

Wbus16: The drive supports 16-bit wide data transfers, so this bit is set.

6-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

INQUIRY

6.Command Specification

Sync: The drive supports synchronous data transfers, so this bit is set.

Linked: The drive does not support linked command.

CmdQue: The drive does not support tagged command queuing, so this bit is never set.

SftRe: The drive responds to the RESET condition with a HARD reset, so this bit is never set.

Vendor Identification: This field contains eight bytes of ASCII data identifying the vendor of the product as

"SONY".

This and the next two fields are left-aligned with the unused bytes at the end of the fields and filled with space

characters (20h).

Product Identification: This field contains sixteen bytes of ASCII data identifying the product as "SDX-1100" for

the data compression model.

Product Revision Level: This field contains four bytes of ASCII data, which define the SCSI Interface Revision

Level.

Addr16: This bit set to 1 indicates the drive supports 16-bit wide SCSI addresses.

Clocking: This field set to 3 indicates the drive supports both ST (single transition) and DT (double transition).

QAS: The drive does not support quick arbitration.

IUS: The drive does not support information units.

Vital Product Data

This contains a list of the vital product data codes supported by the drive.

- Supported Vital Product Data pages

Bit

Byte

Peripheral Qualifier

Peripheral Device Type (01h)

Page Code (00h)

Reserved (00h)

Page Length (04h)

Supported Page List (00h)

Supported Page List (80h)

Supported Page List (83h)

Supported Page List (C0H)

- Unit Serial Number page

Bit

Byte

Peripheral Qualifier

Peripheral Device Type (01h)

Page Code (80h)

Reserved (00h)

Page Length (0Ah)

Product Serial number (in ASCII)

The page length field specifies the length of the product serial number. If the allocation length is too small to

transfer all of the pages, the page length will not be adjusted to reflect the truncation.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-5

6.Command Specification

INQUIRY

The product serial number field contains ASCII data that is vendor-specific. The least significant ASCII character of

the number will appear as the last byte of a successful data transfer.

- Device Identification page

Bit

Byte

Peripheral Qualifier

Peripheral Device Type (01h)

Page Code (83h)

Reserved (00h)

Page Length (32h)

Reserved (00h)

Code set (02h)

Identifier type (01h)

Reserved (00h)

Identifier length (22h)

Vendor ID (SONY)

Product ID (SDX-1100)

Serial Number of the drive

Reserved (00h)

Code set (01h)

Identifier type (02h)

Reserved (00h)

Identifier length (08h)

IEEE EUI-64 Code

IEEE EUI-64: The identifier field a Canonical form IEEE Extended Unique Identifier, 64-bit (EUI-64). (ANSI/IEEE

394:1995)

- Product Revision page

Bit

Byte

Peripheral Qualifier

Peripheral Device Type (01h)

Page Code (C0h)

Reserved (00h)

Page Length (08h)

Product Revision Level

Not Available

6-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

INQUIRY

6.Command Specification

Command support data

If the drive implements the requested SCSI operation code, it will return the data defined in Table 6-3. If the device

does not implement the requested SCSI operation code it will return the peripheral qualifier and type and 001b in

the Support field.

Table 6-3: Command support Data

Bit

Byte

Peripheral Quaifier

Peripheral Device Type (01h)

Support

Reserved (00h)

ECMA version (0)

Reserved (00h)

ISO version (0)

ANSI – Approved version (03h)

Reserved (00h)

CDB size (m-5)

CDB usage data

Support: The drive supports the tested SCSI operation code in conformance with a SCSI standard. The data

format conforms to the definition in Table 6-3 .

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-7

6.Command Specification

LOAD/UNLOAD

6.3. LOAD/UNLOAD 1Bh

Bit

Byte

Operation Code (1Bh)

Reserved

IMMED

LOAD

Reserved

HOLD

Control

Reserved

EOT (0)

RETEN

The LOAD/UNLOAD command requests that the drive enable or disable the media for further operations. This

command may also be used to request a retension function.

IMMED: If this bit is set, status is returned as soon as the load or unload operation is initiated. Otherwise, the

status is returned after the operation has completed.

LOAD: A LOAD bit of one and a HOLD bit of zero indicates the medium in the drive will be loaded and positioned

to the beginning-of-partition zero. A LOAD bit of zero and a HOLD bit of zero indicates the medium in the drive will

be positioned for removal at the extreme position along the medium specified by the EOT bit.

A LOAD bit of one and a HOLD bit of one indicates if the medium has not been moved into the logical unit, the

medium will be moved in but not positioned for access. The EOT and RETEN bits will be set to zero. Following

successful completion, the drive will return GOOD STATUS. If both the medium and drive support MAM, the drive

will generate a unit attention condition for all initiators with the ASC and ASCQ set to MEDIUM AUXILIARY

MEMORY ACCESSIBLE.

A LOAD bit of zero and a HOLD bit of one indicates if the medium is in the drive, the medium will be unthreaded

but will not be ejected. Following successful completion, the drive will return GOOD STATUS. If both the medium

and drive support MAM, the drive will generate a unit attention condition for all initiators with the ASC and ASCQ

set to MEDIUM AUXILIARY MEMORY ACCESSIBLE.

RETEN: A RETEN bit of one indicates that the drive unit will perform a retension function on the current medium.

A RETEN bit of zero indicates that the drive will not perform a retension function on the current medium.

EOT: An end-of-tape (EOT) bit of one and a Load bit of ZERO indicates that the medium will be positioned at

end-of-medium for removal from the peripheral device. Prior to performing the unload operation, any buffered data

that is to be written will be transferred to the medium. An EOT bit of ZERO and Load bit of ZERO indicates that the

medium will be positioned at beginning-of-medium for removal etc. This drive does not support this bit. EOT bit of

one will cause the target to return CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST

and the ASC will be set to ILLEGAL FIELD IN CDB. This field is not supported. This field will be set to 0.

HOLD: A HOLD bit of one indicates MAM will be accessible upon completion of the command but the medium will

not be positioned for access. A HOLD bit of zero and a LOAD bit of one indicates the medium will be positioned for

access. A HOLD bit of zero and a LOAD bit of zero indicates MAM will not be accessible upon completion of the

command.

If the drive has received an UNLOAD command with the Immediate bit set and then receives either another

command which would involve tape motion or TEST UNIT READY, the drive will return a CHECK CONDITION

status with a NOT READY sense key set.

6-8

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOAD/UNLOAD

6.Command Specification

When the drive receives the UNLOAD, the tape is rewound to BOM and ejected. The operator must reload the

drive manually. If, however, the drive has previously received a PREVENT MEDIA REMOVAL (with prevent bit set)

command, the tape is retained in the drive. A subsequent LOAD command will load and position the tape at BOP

ZERO. If an UNLOAD was sent instead, the drive would return NOT READY and the tape would remain within the

drive. In this case, the drive requires a PREVENT ALLOW MEDIA REMOVAL (with prevent bit clear) command

before an UNLOAD will eject the tape.

Note: While the PREVENT MEDIA REMOVAL is in effect, the Front Panel EJECT button is completely disabled.

If the cassette is unloaded but has not been ejected from the drive because of moisture detection, then a

subsequent UNLOAD will cause the tape to eject from the drive. All commands except INQUIRY, REQUEST

SENSE and READ BLOCK LIMITS will return a CHECK CONDITION status with a HARDWARE ERROR sense

key set. The tape may also be ejected via the Front Panel EJECT button.

If no cassette is in drive, both LOAD and UNLOAD will return a CHECK CONDITION status with NOT READY

sense key set

The valid combinations of the last four fields are given in Table 6-4 below.

Table 6-4: LOAD UNLOAD Command Parameter Combinations

HOLD RETEN

LOAD

ACTION

1 (Load)

Normal load to access the medium without a retension operation, positioned at BOP0.

Logical unit in READY state. Immed may be ZERO or 1b.

1 (Load)

Load to access MAM only. logical unit in NOT READY state. Immed may be ZERO or 1b.

MAM Load Count is not incremented. Unit Attention Condition set for MEDIUM AUXILIARY

MEMORY ACCESSIBLE.

1 (Load)

Normal load to access the medium after a retension operation, positioned at BOP0. Logical

unit in READY state. Immed may be ZERO or 1b.

Invalid Combination. Command terminates with CHECK CONDITION Status. The sense key

is set to ILLEGAL REQUEST and the ASC is set to INVALID FIELD IN CDB.

0 (Unload)

Normal Unload/Eject of cartridge. Logical unit enter NOT READY state. Immed may be

ZERO or 1b.

Unload of cartridge, but MAM still accessible but cartridge is not ejected. Logical unit enters

NOT READY state. Immed may be ZERO or 1b. Unit Attention Condition set for MEDIUM

AUXILIARY MEMORY ACCESSIBLE.

0 (Unload)

Normal Unload/Eject of cartridge after a retension operation. Logical unit enters NOT READY

state. Immed may be ZERO or 1b.

Unload of cartridge after retension operation, but MAM still accessible. Logical unit enter

NOT READY state. Immed may be ZERO or 1b.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-9

6.Command Specification

LOCATE

6.4. LOCATE 2Bh

Bit

Byte

Operation Code (2Bh)

Reserved

BT (0)

Immed

(LSB)

(MSB)

Block Address

Reserved

Partition (0)

Control

The LOCATE command causes the drive to position the logical unit to the specified block address in a specified

partition. Upon completion, the logical position will be after the specified location. Prior to performing the locate

operation, the drive will ensure that all buffered data, Filemarks, and Setmarks have been transferred to tape.

BT: A block address type (BT) bit of one is not supported and will be set to ZERO otherwise a CHECK

CONDITION with an ILLEGAL REQUEST sense key will be returned.

CP: A change partition (CP) bit of one indicates that a change to the partition specified in the partition field is to

occur prior to positioning to the block specified in the block address field. A CP bit of ZERO indicates no partition

change is to be made and the partition field is to be ignored.

Immed: An immediate (Immed) bit of ZERO indicates that the drive will not return status until the locate operation

has completed. An Immed bit of one indicates that the drive will return status as soon as all buffered commands

have completed execution and the CDB of the LOCATE command has been validated. If CHECK CONDITION

status is returned for a LOCATE command with an Immed bit of one, the locate operation will not be performed.

Block Address: The Block Address field specifies the block address to which the drive will be positioned on the

tape.

Partition: The Partition field specifies which partition to select if the CP bit is one. Refer to the Mode Select

command, Medium Partition page for additional information about partitioning. The multi partition is not supported

by the drive. If set to non-ZERO, a check condition status is returned with a ILLEGAL REQUEST sense key.

6-10

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SELECT

6.Command Specification

6.5. LOG SELECT 4Ch

Bit

Byte

Operation Code (4Ch)

Reserved

PCR

SP (0)

Reserved

(MSB)

Parameter List Length

(LSB)

Control

The LOG SELECT command provides a means for the initiator to manage statistical information maintained by the

device about its own hardware or the installed media. This description will be read in conjunction with the

description of the LOG SENSE command which follows it, to provide the reader with information about log page

format, parameters and supported pages.

PCR: A Parameter Code Reset bit of one and a Parameter List Length of ZERO will cause ALL log pages which

can be cleared, to be cleared. If this field is set and the Parameter List Length field is non-ZERO then the

command will be terminated with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST,

and an ASC of INVALID FIELD IN CDB.

SP: The device does not have non-volatile RAM into which it may save parameters. Therefore, the Save Page bit

is not supported by this device and will always be set to ZERO. If the SP bit is set, the command will be terminated

with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of INVALID FIELD

IN CDB.

PC: The Page Control field defines the type of parameter values to be selected:

Table 6-5: Page Control field values

Value

00b

01b

10b

11b

Description

Current Threshold Values

Current Cumulative Values

Default Threshold Values

Default Cumulative Values

If this field is set to 00b, 10b or 11b and the Parameter List Length field is non-0 then the command will be

terminated with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of

INVALID FIELD IN CDB. This is because no modification of these log pages is permitted. For a description of

command behavior if this field is set to 01b then see the description of the Parameter List Length field below.

If this field is set to 10b and the Parameter List length field is 0 then all Current Threshold Values will be reset to

the Default Threshold Values. This is equivalent to no change as Threshold Values cannot be modified.

If this field is set to 11b and the Parameter List Length field is 0 then all Current Cumulative Values will be reset to

the Default Cumulative Values. This is equivalent to all log pages which can be cleared.

Parameter List Length: This field specifies the length in bytes of the LOG SELECT parameter list that will be

transferred from the initiator to the target during the DATA OUT phase. A parameter list length of ZERO indicates

that no data will be transferred. This condition will not be considered as an error (see description of Parameter

Code Reset and Page Control fields above). If this field is non-0 the Page Control field must be 01b.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-11

6.Command Specification

LOG SELECT

The purpose of the Log Select command is to allow the initiator to modify and initialize parameters within the logs

supported by the device. However in this case, access to individual parameters within log pages is not supported

and so initiator is restricted to resetting complete log pages only.

To achieve this, during the DATA OUT phase the initiator must send the log page header of the page to be cleared,

with the Page Length field set to ZERO. The following pages can be cleared in this manner.

Table 6-6: Page Codes

Page Code

02h

Description

Write Error Counter Page

03h

Read Error Counter Page

07h

Last n Error Events Page

2Eh

Tape Alert Log Page

34h

35h

39h

3Eh

Write Frame Error Counter Page

Read Frame Error Counter Page

Data Compression Transfer Log Page

MIC Variable Length Information Parameter Code

Note: Due to the way in which logs are stored and updated, clearing log page 2 will result in log page 3 also being

cleared and vice versa.

Because of this method of clearing the log pages, the Parameter List Length field must be an integer multiple of

the Log Page Header length (i.e. 4). Otherwise the command will be terminated with a CHECK CONDITION status

with the sense key set to ILLEGAL REQUEST and an ASC of INVALID FIELD IN CDB.

If multiple pages are sent during the DATA OUT phase then they must be sent in ascending order according to

page code. Otherwise the command will terminate with a CHECK CONDITION status with the sense key set to

ILLEGAL REQUEST and an ASC of ILLEGAL FIELD IN PARAMETER LIST. The same status will be returned if an

unsupported Page Code appears in any header or if the specified page cannot cleared.

Other Log Select Page Codes have been defined for MIC support. MIC Variable Length Information Page is

assigned as 3Eh. Please refer the description for “Log Sense Page 3Eh” and Appendix (MIC) on this Product

Specification Manual. User Volume Note and User Partition Note are automatically created with indicated size, if it

is not exist. User Volume Note size and User Partition Note size must be the same size with current one, if it is

already exist. Just only supersede operation is allowed.

Table 6-7: MIC Variable Length Information Parameter Codes

Parameter Code

0001h

Description

User Volume Note

User Partition Note for Partition 0

Length

n-3

0002h

1. See Important Note for Log Sense Page 3Eh.

2. If there is no User Volume Note and there is no User Partition Note, User Volume Note will be created for the

specific Length if it does not exceed the Available Free Byte Count returned in Log Sense Page 3Dh

Parameter Code 0003h. If there is existing User Volume Note and User Partition Note data the new User

Volume Note data must be exactly the same size as the existing User Volume Note data, otherwise a Check

Condition status will be returned and no new data will be written to MIC. If there is existing User Volume

Note data but no User Partition Note data then User Volume Note length may be equal to the Available Free

Byte Count.

3. There is no format to writing user data to MIC. The application is free to define MIC data for its use.

6-12

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6. LOG SENSE 4Dh

Bit

Byte

Operation Code (4Dh)

Reserved

PPC (0)

SP (0)

Page Code

(MSB)

Reserved

Parameter Pointer

(LSB)

Allocation Length

Control

The LOG SENSE command provides a means for the initiator to retrieve statistical information maintained by the

device about its own hardware or the installed media. It is a complementary command to the LOG SELECT

command.

SP: The device does not have non-volatile RAM into which it may save parameters. Therefore, the Save Page bit

is not supported by this device and will always be set to ZERO. If the SP bit is set, the command will be terminated

with a CHECK CONDITION status with the sense key set to ILLEGAL REQUEST, and an ASC of INVALID FIELD

IN CDB.

PPC: The Parameter Pointer Control bit will always be set to ZERO. This indicates that the parameter data

requested from the device will start with the parameter code specified in the Parameter Pointer field and return the

number of bytes specified in the Allocation Length field in ascending order of parameter codes from the specified

log page. A PPC bit of ZERO and a Parameter Pointer field of ZERO cause all available parameter data for that

page code to be returned to the initiator. If the PPC bit is set or the Parameter Pointer is larger than the highest

numbered parameter on the page, then the target will terminate the command with CHECK CONDITION status.

The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN CDB. If the drive

does not support a parameter code within this page then it will not return any data associated with this parameter.

PC: The Page Control field defines the type of parameter values to be selected. The page control field is defined

below:

Table 6-8: Page Control field values

Value

00b

01b

10b

11b

Type of Parameter Values

Current Threshold Values

Current Cumulative Values

Default Threshold Values

Default Cumulative Values

The Current Threshold Values and the Default Threshold Values are non-changeable and the both will return the

same values-i.e. the maximum values that each parameter can attain. Note that for some parameters the term

threshold value has no meaning. See the description of individual pages/ parameters below for more details.

The Current Cumulative Values are the values computed since the last reset of the device (either by

power-cycling, BUS DEVICE RESET or SCSI RESET). Note that for some parameters these values cannot be

reset by any method. See description of individual pages/parameters below for more details.

The Default Cumulative Values are the values to which each parameter gets initialized on a reset condition as

described above. See description of individual pages/parameters below for more details.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-13

6.Command Specification

LOG SENSE

Page Code: The Page Code field identifies which log page is being requested by the initiator. If the page is not

supported then the command will terminate with a CHECK CONDITION status with the sense key set to ILLEGAL

REQUEST and an ASC of INVALID FIELD IN CDB.

Supported pages are:

Table 6-9: Supported Log Pages

Page Code

00h

Description

Supported Log Pages

02h

Write Error Counter Page

03h

Read Error Counter Page

07h

Last n Error Events Page

2Eh

30h

31h

Tape Alert Log Page

Tape Log Page (Sony Unique)

Tape Capacity Log Page

33h

34h

35h

39h

3Ch

3Dh

3Eh

Drive Usage Page (Sony Unique)

Write Frame Error Counter Page

Read Frame Error Counter Page

Data Compression Transfer Log Page

AIT Log Page

AIT Fixed Length Information Page for MIC

AIT Variable Length Information Page for MIC

Parameter Pointer: The Parameter Pointer field allows the initiator to specify at which parameter within a log

page the requested data will begin.

For example if a page supported parameters 0 through 5, and the Parameter Pointer field contained 3 then only

parameters 3, 4 and 5 would be returned to the initiator. Similarly, if a page supported parameters 1, 3 and 6, and

the Parameter Pointer field contained 2, then only parameters 3 and 6 would be returned to the initiator.

Note that parameters within a page are always returned in ascending order according to parameter code. If an

invalid parameter pointer is sent the drive will return CHECK CONDITION with the sense key set to ILLEGAL

REQUEST and an ASC of INVALID FIELD IN CDB.

Allocation Length: The Allocation Length field is used to inform the target how much space the initiator has

allocated for data. Note however that if this field is 0 then this is not considered an error and the device will just

return a GOOD STATUS.

6.6.1. The Log Page Descriptor

The format of the log pages consists of ZERO or more variable-length parameter structures. Each page begins

with a 4-byte page header followed by ZERO or more variable-length parameter structures defined for that page.

The Log Select command supports the ability to send ZERO or more log pages. The LOG SENSE command

returns a single log page as specified in the Page Code field of the CDB.

6-14

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Table 6-10: Log Page Format

Bit

Byte

Reserved

(MSB)

Page Code

Reserved

Page Length (n-3)

(LSB)

Log Parameters (s)

The First Log Parameter

x+3

(Length x)

n-y

The Last Log Parameter

(Length y)

Page code: Identifies which page of data is being transferred. If the Page Code field value is reserved or not

implemented by the target, the target will terminate the command with a CHECK CONDITION status. The sense

key will be set to ILLEGAL REQUEST, and the ASC will be set to INVALID FIELD IN PARAMETER LIST.

Page Length: The Page Length field indicates the total number of bytes that follow this byte. The value returned

for this field depends on the value you specified for the Page Code and the Parameter Pointer in the CDB. This

value is independent of what you specified for the Allocation Length. A Page Length value that results in the

truncation of any parameter will cause the target to terminate the command with a CHECK CONDITION status.

The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN PARAMETER

LIST.

6.6.2. The Log Parameter Descriptor

Most log pages contain one or more special data structures called log parameters. These may be data counters

which record the occurrence of certain events, or they may be more complex structures which describe activities

or other events which occur within the device. Each parameter structure begins with a 4-byte parameter header

followed by one or more bytes of parameter structure data. The 4-byte header is shown below:

Table 6-11: Log Parameter

Bit

Byte

(MSB)

DU(0)

Parameter Code

(LSB)

DS (1)

TSD(0)

ETC (0) TMC (00)

Parameter Length (n-3)

Parameter Value

LBIN

Parameter Code: Identifies which parameter of data is being transferred. If the parameter code value is reserved

or not implemented by the target, then the target will terminate the command with a CHECK CONDITION status.

The sense key will be set to ILLEGAL REQUEST and the ASC will be set to INVALID FIELD IN PARAMETER

LIST.

The DU, DS, TSD, ET, TMC, and LP fields are collectively referred to as the control byte.

DU: The DU bit (Disable Update) is not defined for threshold values (indicated by the PC field of the LOG SENSE

CDB). The target will ignore the value of any DU bits in a LOG SELECT command. This field is not supported.

DS: The DS (Disable Save) bit informs the initiator that savable parameters are disabled (i.e. not supported), and

will always be 1. If it is 0 the command will terminate with a CHECK CONDITION status with sense key set to

ILLEGAL REQUEST and ASC of ILLEGAL FIELD IN PARAMETER LIST.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-15

6.Command Specification

LOG SENSE

TSD: A target save disable (TSD) bit of ZERO indicates a target-defined method for saving log parameters. This

implicit saving operation will be done frequently enough to insure that the cumulative parameter values retain

statistical significance (i.e. across power cycles). A TSD bit of one indicates that either the target does not provide

a target-defined method for saving log parameters or the target-defined method has been disabled by the initiator.

If the initiator sets both the DS and the TSD bits set to one, the target will terminate the command with a CHECK

CONDITION status. The sense key will be set to ILLEGAL REQUEST with the ASC set to INVALID FIELD IN

PARAMETER LIST.

ETC: An enable threshold comparison (ETC) bit of one indicates that when the cumulative parameter value is

updated, it will be compared to the threshold parameter value and the action specified by the TMC field will be

taken. An (ET) bit of ZERO disables this comparison. The ET bit is the same for both the cumulative and threshold

log parameter. Thus when the ET bit is set to a value by the initiator, this value is returned for both the cumulative

and threshold values of the log parameter. This field is not supported.

TMC: The threshold met criteria (TMC) field defines the binary relationship between the cumulative and threshold

log parameter values under which the threshold is met. If the ET bit is one and the threshold condition is met, a

Unit Attention condition will be posted to all initiators. When reporting the unit attention condition, the target will set

the sense key to UNIT ATTENTION, the ASC to LOG EXCEPTION, and the ASCQ to THRESHOLD CONDITION

MET.

The TMC field is the same for both the cumulative and threshold parameter. Thus when the TMC field is set to a

value by the initiator, this value is returned for both cumulative and threshold values of the log parameter.

Table 6-12: Threshold Met criteria

TMC

00b

01b

10b

11b

Threshold Met Criteria

Any update of the parameter

Cumulative = Threshold

Cumulative < > Threshold

Cumulative > Threshold

LP: The LP bit field defines whether the parameter is a data counter or a list parameter. See the description of

each supported page below for information on the setting of this field.

Note: If any of the other bit-fields in the control byte are set then the command will terminate with a CHECK

CONDITION status with a sense key of ILLEGAL REQUEST and an ASC of INVALID FIELD IN PARAMETER

LIST

6-16

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6.3. Summary List of Supported Pages (00h)

The summary list of supported log pages returns the list of page codes supported by the target. This page is only

valid for the Log Sense command and if sent to the initiator during a Log Select command will cause termination

with a CHECK CONDITION status with sense key set to ILLEGAL REQUEST and ASC of INVALID FIELD IN

PARAMETER LIST.

Table 6-13: Supported Log Pages

Bit

Byte

Reserved

(MSB)

Page Code (00h)

Reserved (00h)

Page Length (00 0Eh)

(LSB)

Supported Page List

(00 02 03 07 2E 30 31 33 34 35 39 3C 3D 3Eh)

This page returns the summary list of supported log pages for the specified logical unit to the requesting initiator.

IMPLEMENTORS NOTE: Typically, an initiator will first request page ZERO to determine the list of pages

supported by the device. The page code parameters are a list containing the page codes of the supported pages

for the logical unit in ascending order. Note that neither Threshold nor Cumulative values have any meaning for

this page.

6.6.4. Write and Read Error Counters Pages (02h or 03h)

The Error Counters Pages (Write and Read) are used to report statistical information about Write and Read soft

and hard errors and retries. Each parameter is a counter which is updated by the target every time the

corresponding event occurs. The format of the Error Counters Pages is given below:

Table 6-14: Write/Read Error counters page

Bit

Byte

Reserved

Page Code (02h or 03h)

Reserved

Page Length (n)

(MSB)

(LSB)

Table 6-15: Error Counter Descriptors

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (n-3)

Parameter Value

(LSB)

The Page Code is one of the following:

Table 6-16: Page Code

Page Code

02h

Description

Write error Counter Page

Read error Counter Page

03h

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-17

6.Command Specification

LOG SENSE

The following parameter codes are supported for each Error Counters Page:

Table 6-17: Error Counter parameter codes

Parameter

Code

0003h

0004h

0005h

Description

Parameter

Length (Bytes) Cumulative

Default

Threshold

FFFFFFFFh

Total Errors Corrected (Soft Errors)

Total Times Correction

Total Groups Processed (Algorithm

Processed)

0006h

Total Errors Uncorrected (Hard Errors)

FFFFFFFFh

6.6.5. Last N Error Events List (07h)

This page is used to report information on soft and hard errors encountered by the device during normal operation.

Each parameter corresponds to an encountered error and is a report of what type of error occurred and when it

occurred. The format of the page is given below:

Table 6-18: Last N Error Events Page

Bit

Byte

Reserved

Page Code (07h)

Reserved

Page Length (n*14)

(MSB)

(LSB)

Table 6-19:Error Events Descriptors

Bit

Byte

(MSB)

DU (0)

Parameter Code

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (0Ah)

Parameter Value

The Parameter Codes supported are 1 through 30 where 30 is the maximum number of entries in the log page.

If there are no entries, the command will return the Page Header with the Page Length field set to ZERO.

Each error event record contains diagnostic information for a single error encountered by the device. The

parameter codes associated with the error-event records indicate the order in which the errors occurred. A higher

parameter code indicates that the error event occurred later in time.

Each parameter entry is 10 bytes long and has the following format:

Table 6-20: Error Event format

Byte Offset

Meaning

0 – 4

Result Message (see Diagnostic Clause)

Unused

6 – 9

Time-stamp (number of 1 minute increments since power-on)

When the log page becomes full, no more entries will be added until the log is cleared (using one of the methods

described previously) or a reset occurs. The current cumulative values will be returned regardless of the page

control field in the LOG SENSE CDB.

6-18

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6.6. Tape Alert Log Page (2Eh)

Bit

Byte

Reserved

Page Code (2Eh)

Reserved

Page Length (140h)

5n-1

5n+1

5n+2

5n+3

(MSB)

DU (0)

(LSB)

LP (0)

Parameter Code (n)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (1)

Value of Flag

The value of n in the Parameter Code field will be in the range of 1 to 64.

A value of one in the Value of Flag field indicates the flag is set.

Each flag will be cleared to zero in the following conditions:

• At power on cycle

• When Tape Alert Log page is read

• When specified corrective action has been performed

• SCSI bus reset or Bus Device Reset message

• Log Select reset

There are three types of flags, listed below in order of increasing severity:

Table 6-21: Tape Alert flag types

Severity

Urgent User

Intervention

Risk of Data Loss

Explanations

C (Critical)

W (Warning)

I (Information)

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-19

6.Command Specification

LOG SENSE

Tape Alert Log Page Parameter Codes

Code

Flag

Flag Type

Recommended application client message

Probable cause

01h

Read Warning

The tape drive is having problems reading data. No The drive is having severe

data has been lost, but there has been a reduction trouble reading

in the performance of the tape.

02h

03h

04h

Write

Warning

The tape drive is having problems writing data. No

data has been lost, but there has been a reduction

in the capacity of the tape.

The drive is having severe

trouble writing

Hard Error

Media

The operation has stopped because an error has

occurred while reading or writing data, which the

drive cannot correct.

The drive had a hard read

or write error

Your data is at risk:

1. Copy any data you require from this tape.

2. Do not use this tape again.

Media can no longer be

written/read, or

performance is severely

3. Restart the operation with a different tape.

The tape is damaged or the drive is faulty. Call the

tape drive supplier helpline.

The tape is from a faulty batch or the tape drive is

faulty:

degraded

05h

06h

Read Failure

Write Failure

The drive can no longer

read data from the tape

The drive can no longer

write data to the tape

1. Use a good tape to test the drive.

2. If the problem persists, call the tape drive

supplier helpline.

07h

Media Life

The tape cartridge has reached the end of its

calculated useful life:

The media has exceeded

its specified life

1. Copy any data you need to another tape

2. Discard the old tape.

08h

09h

Not Data

Grade

The tape cartridge is not data-grade. Any data you

back up to the tape is at risk.

Replace the cartridge with a data-grade tape.

You are trying to write to a write-protected cartridge. Write command is

Remove the write-protection or use another tape.

The drive has not been

able to read the MRS

stripes

Write Protect

attempted to a write

protected tape

Manual or s/w unload

attempted when prevent

media removal on

0Ah No Removal

You cannot eject the cartridge because the tape

drive is in use.

Wait until the operation is complete before ejecting

the cartridge.

0Bh Cleaning

Media

0Ch Unsupported

Format

The tape in the drive is a cleaning cartridge.

Cleaning tape loaded into

drive

You have tried to load a cartridge of a type that is

not supported by this drive.

Attempted loaded of

unsupported tape format,

e.g. DDS2 in DDS1 drive

Tape snapped/cut in the

drive where media can be

ejected

0Dh Recoverable

Snapped Tape

The operation has failed because the tape in the

drive has snapped:

1. Discard the old tape.

2. Restart the operation with a different tape.

The operation has failed because the tape in the

drive has snapped:

1. Do not attempt to extract the tape cartridge.

2. Call the tape drive supplier helpline.

The memory in the tape cartridge has failed, which

reduces performance.

0Eh Unrecoverable

Snapped Tape

Tape snapped/cut in the

drive where media cannot

be ejected

0Fh

Memory Chip

in Cartridge

Failure

Memory chip failed in

cartridge

Do not use the cartridge for further backup

operations.

10h

11h

Forced Eject

The operation has failed because the tape cartridge Manual or forced eject

was manually ejected while the tape drive was

actively writing or reading.

while drive actively writing

or reading

Read Only

Format

You have loaded a cartridge of a type that is

read-only in this drive.

Media loaded that is

read-only format

The cartridge will appear as write-protected

6-20

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Code

Flag

Flag Type

Recommended application client message

Probably cause

12h

The directory on the tape cartridge has been

corrupted.

File search performance will be degraded. The

tape directory can be rebuilt by reading all the data prevented the tape

on the cartridge

Tape drive powered down

with tape loaded, or

permanent error

Tape

Directory

Corrupted

on Load

directory being updated

13h

14h

Nearing Media

Life

The tape cartridge is nearing the end of its

calculated life. It is recommended that you:

1. Use another tape cartridge for your next backup. number of passes

2. Store this tape cartridge in a safe place in case

you need to restore data from it.

The tape drive needs cleaning:

1. If the operation has stopped, eject the tape and

Media may have

exceeded its specified

Clean Now

The drive thinks it has a

head clog, or needs

cleaning

clean the drive

2. If the operation has not stopped, wait for it to

finish and then clean the drive.

Check the tape drive user’s manual for device

specific cleaning instructions.

15h

16h

17h

18h

19h

Clean Periodic

The tape drive is due for routine cleaning:

1. Wait for the current operation to finish.

2. Then use a cleaning cartridge.

Check the tape drive user’s manual for device

specific cleaning instructions.

The last cleaning cartridge used in the tape drive

has worn out:

1. Discard the worn out cleaning cartridge.

2. Wait for the current operation to finish.

3. Then use a new cleaning cartridge.

The last cleaning cartridge used in the tape drive

was an invalid type:

1. Do not use this cleaning cartridge in this drive.

2. Wait for the current operation to finish.

3. Then use a valid cleaning cartridge.

The drive is ready for a

periodic clean

Expired

Cleaning

Media

The cleaning tape has

expired

Invalid

Cleaning Tape

Invalid cleaning tape type

used

Retention

Requested

The tape drive has requested a retention operation The drive is having

severe trouble reading or

writing, which will be

resolved by a retention

cycle

Failure of one interface

port in a dual-port

configuration, e.g. Fibre

channel

Dual-Port

Interface Error

A redundant interface port on the tape drive has

failed

1Ah

1Bh

Cooling Fan

Failure

A tape drive cooling fan has failed.

Fan failure inside tape

drive mechanism or tape

drive enclosure

Redundant PSU failure

inside the tape drive

enclosure or rack

Power Supply

A redundant power supply has failed inside the

tape drive enclosure. Check the enclosure user’s

manual for instructions on replacing the failed

power supply.

subsystem

1Ch

1Dh

Power

Consumption

The tape drive power consumption is outside the

specified range

Power consumption of the

tape drive is outside

specified range

The drive requires

preventative maintenance

(not cleaning).

Drive

Maintenance

Preventive maintenance of the tape drive is

required.

Check the tape drive user’s manual for device

specific preventive maintenance tasks or call the

tape drive supplier helpline.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-21

6.Command Specification

LOG SENSE

Code

1Eh

Flag

Hardware A

Flag Type

Recommended application client message

The tape drive has a hardware fault:

1. Eject the tape or magazine.

2. Reset the drive.

Probable cause

The drive has a hardware

fault that requires reset to

recover.

3. Restart the operation.

1Fh

Hardware B

The tape drive has a hardware fault:

1. Turn the tape drive off and then on again.

2. Restart the operation.

3. If the problem persists, call the tape drive

supplier helpline.

The drive has a hardware

fault which is not read/write

related or requires a power

cycle to recover.

Check the tape drive user’s manual for device

specific instructions on turning the device power

on and off.

20h

21h

22h

Interface

The tape drive has a problem with the initiator

interface:

1. Check the cables and cable connections.

2. Restart the operation.

The drive has identified an

interfacing fault

Eject Media

Download Fail

The operation has failed:

Error recovery action

1. Eject the tape or magazine.

2. Insert the tape or magazine again.

3. Restart the operation.

The firmware download has failed because you

have tried to use the incorrect firmware for this

tape drive.

Firmware download failed

Obtain the correct firmware and try again.

23h

Drive Humidity

Environmental conditions inside the tape drive

are outside the specified humidity range

Drive humidity limits

exceeded

24h

25h

Drive

Temperature

Environmental conditions inside the tape drive

are outside the specified temperature range

Drive temperature limits

exceeded

Drive Voltage

The voltage supply to the tape drive is outside

the specified range

Drive voltage limits exceeded

26h

27h

Predictive

Failure

Diagnostics

Required

A hardware failure of the tape drive is predicted. Predictive failure of drive

Call the tape drive supplier helpline.

The tape drive may have a fault. Check for

availability of diagnostic information and run

extended diagnostics if applicable.

Check the tape drive users manual for

instructions on running extended diagnostic

tests and retrieving diagnostic data

hardware

The drive may have had a

failure which may be

identified by stored

diagnostic information or by

running extended

diagnostics (e.g. Send

Diagnostic)

28h

29h

Loader

Hardware A

The changer mechanism is having difficulty

communicating with the tape drive:

1. Turn the autoloader off then on.

2. Restart the operation.

3. If problem persists, call the tape drive supplier

helpline.

Loader mechanism is having

trouble communicating with

the tape drive

Loader Stray

Tape

A tape has been left in the autoloader by a

previous hardware fault:

Stray tape left in loader after

previous error recovery

1. Insert an empty magazine to clear the fault.

2. If the fault does not clear, turn the autoloader

off and then on again.

3. If the problem persists, call the tape drive

supplier helpline.

2Ah

Loader

Hardware B

There is a problem with the autoloader

mechanism.

Loader mechanism has a

hardware fault

6-22

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Code

2Bh

Flag

Loader Door

Flag Type

Recommended application client message

The operation has failed because the autoloader

door is open:

Probable cause

Tape changer door open

1. Clear any obstructions from the autoloader door.

2. Eject the magazine and then insert it again.

3. If the fault does not clear, turn the autoloader off

and then on again

4. If the problem persists, call the tape drive

supplier helpline.

2Ch

Loader

Hardware C

The autoloader has a hardware fault:

1. Turn the autoloader off and then on again.

2. Restart the operation.

3. If the problem persists, call the tape drive

supplier helpline.

The loader mechanism

has a hardware fault that

is not mechanically

related.

Check the autoloader users’ manual for device

specific instructions on turning the device power on

and off.

2Dh

2Eh

Loader

Magazine

The autoloader cannot operate without the

magazine.

1. Insert the magazine into the autoloader

2. Restart the operation.

A hardware failure of the changer mechanism is

predicted.

Loader magazine not

present

Loader

Predictive

Failure

Predictive failure of

loader mechanism

hardware

Call the tape drive supplier helpline.

32h

33h

Lost Statistics

Media statistics have been lost at some time in the Drive or library powered

past

down with tape loaded

Error prevented the tape

directory being updated

on unload.

Tape directory

invalid at unload

The tape directory on the tape cartridge just

unloaded has been corrupted.

File search performance will be degraded

The tape directory can be rebuilt by reading all the

data.

36h

No start of data

The start of data could not be found on the tape:

1. Check you are using the correct format tape

2. Discard the tape or return the tape to your

supplier

Tape damaged, bulk

erased, or incorrect

format

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-23

6.Command Specification

LOG SENSE

6.6.7. Tape Log Page (30h) (Sony Unique)

This page is a Sony unique page which provides information on the tape currently being used. This log cannot be

cleared and has the following format:

Table 6-22: Tape Log Page

Bit

Byte

Reserved

Page Code (30h)

Reserved

Page Length

(MSB)

DU (0)

(LSB)

LP (0)

Parameter Code

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (m)

Parameter Value

3+m

This page is used to return Tape Log information to the initiator in a format which conforms to the LOG SENSE

command page format.

Supported Parameter Codes in this page are listed below along with their meanings:

Table 6-23: Tape Log parameter codes

Parameter Code

Description

Current Groups Written

Length

001h

002h

003h

004h

005h

006h

007h

008h

009h

00Ah

00Bh

00Ch

00Dh

Current Rewritten Tracks

Current Groups Read

Current C3 ECC Count

Previous Groups Written

Previous Rewritten Tracks

Previous Groups Read

Previous C3 ECC Count

Total Groups Written

Total Rewritten Tracks

Total Groups Read

Total C3 ECC Count

Load Count

This information is contained within RAM in the Drive Controller. The log is updated as the tape is used.

The term 'current' refers to information generated during the current load of the tape; 'previous' refers to

information generated during the last tape load; 'total' refers to information generated since it was first initialized

including the current load.

Use: An estimate of reading and writing performance can be made by the ratios of 'Total Groups Written' to

'Rewritten Tracks' and 'Groups Read' to 'C3 ECC Count'. An indication of tape degradation can be gained by

comparing these ratios for 'current', 'previous' and 'total' entries.

Any attempt to change this page using LOG SELECT will result in a CHECK CONDITION with a Sense Key of

ILLEGAL REQUEST. The current cumulative values will be returned regardless of the Page Control field in the

LOG SENSE CDB.

6-24

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6.8. Tape Capacity Log Page (31h) (Sony Unique)

The tape Capacity Log Page is used to indicate the approximate capacity of the tape currently being used. The PC

field of the LOG SENSE command is ignored for this field.

Table 6-24: Tape Capacity Log Page

Bit

Byte

Page Code (31h)

Reserved (0)

Page Length (00 20h when AIT bit =0

04 00h when AIT bit =1)

(MSB)

(LSB)

Table 6-25: Capacity Descriptors

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (04h)

Parameter Value

(LSB)

Tape Capacity Log Page Parameters:

Table 6-26: Tape Capacity Log Parameter Codes

Length

Code

0001

0002

0003

0004

Description

Remaining capacity, partition 0 (kilobytes)

Reserved

Maximum capacity, partition 0 (kilobytes)

Reserved

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-25

6.Command Specification

LOG SENSE

6.6.9. Drive Usage Log Page (33h) (Sony Unique)

This page is a SONY unique page which provides information on the drive currently being used. This log cannot

be cleared and has the following format.

Table 6-27: Drive Usage Log Page

Bit

Byte

Reserved

Page Code (33h)

Reserved

Page Length (0244h)

(MSB)

DU (0)

(LSB)

Parameter Code

(LSB)

LP (0)

DS (1)

TSD (0) ETC (0)

Parameter Length (m)

Parameter Value

TMC (00)

LBIN (0)

7+m

This page is used to return the vendor unique Drive Usage Log information to the initiator in a format which

conforms to the Log Sense command page format.

Supported Parameter Codes in this page are listed below with their meaning:

Table 6-28: Drive Usage Supported Parameter Codes

Default

Cumulative

00000000h

n/a

00000000h

n/a

00000000h

n/a

Default

Threshold

FFFFFFFFh

n/a

Code

Description

Power on minutes

Drum revolution minutes

Fan revolution minutes

Reserved

Length

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000ah

000bh

000ch

Load count

Thread count

FFFFFFFFh

MD serial number

All board revision number

Drive serial number

Mechanism motion count (pinch on count)

Cleaning Request Flag and Interval

(minutes)

EEPROM written count

Reserved

FFFFFFFFh

n/a

000dh

000eh

000fh

n/a

0010h

0011h- 0020h

Reserved

n/a

8×16

Last 16 Mechanism Error Event List

Cleaning Request Flag and Interval Parameter Format

Byte 3

Byte 2

Byte 1

Byte 0

↔

←⎯⎯ Drum Rotation Time Interval from the last cleaning (minutes) ⎯⎯→

Cleaning Request Status (1 = Request)

6-26

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

All board revision number is 8 bytes long and has a following format:

Table 6-29: All Board Revision Number Parameter Format

Set revision

Board revision

Mechanism revision

RF revision

Each Mechanism Error Event is 24 bytes long and has following format:

Table 6-30: Mechanism Error Event Format

Byte offset

Meaning

0-3

4-7

Drum revolution minutes

Error code

6.6.10. Read and Write Frame Error Counter Page (34h & 35h)

The Read and Write Error Counter Page has the following format. All fields in these logs are initialized to ZERO in

the following circumstances:

At Power On

After a cassette unloading

After a user sends a request for initialization through Log Select

Table 6-31: Read and Write Frame Error Counter Page

Bit

Byte

Page Code (34h Write Frame Error Counters, 35h Read Frame Error Counters)

Reserved

Page Length (88h)

(MSB)

(LSB)

Error Counter Descriptors

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

Parameter Length (4)

Parameter Value

TMC (0)

LBIN (0)

(LSB)

Parameter Code: This identifies which parameter of data is being transferred. The following codes are supported

for each Error Counter Page.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-27

6.Command Specification

LOG SENSE

Parameter Code

Length

Default Cumulative

Default Threshold

0001h Frame Read or Write

0002h Main Data SYMN Block Errors CH1

0003h Main Data SYMN Block Errors CH2

0004h Reserved

0005h Reserved

0006h Reserved

0007h Reserved

0008h Reserved

0009h Reserved

000Ah SYMN Block Errors R1

000Bh SYMN Block Errors R2

000Ch SYMN Block Errors R3

000Dh SYMN Block Errors R4

000Eh Reserved

000Fh Reserved

0010h Reserved

0011h Reserved

FFFFFFFFh

Block_Error_Rate [CH1] = Param0002h / (Param0001h×N)

Block_Error_Rate [CH2] = Param0003h / (Param0001h×N)

Block_Error_Rate [R1] = Param000Ah / (Param0001h×N/2)

Block_Error_Rate [R2] = Param000Bh / (Param0001h× N/2)

Block_Error_Rate [R3] = Param000Ch / (Param0001h× N/2)

Block_Error_Rate [R4] = Param000Dh / (Param0001h× N/2)

[N] AIT-5 Tape

AIT-4 Tape

: N = 206

AIT-3Ex Tape : N = 154

AIT-3 Tape : N = 336

The Format of this log page is shown in Table 6-32

Table 6-32: Read and Write Frame Error Counter Page Header format

Bit

Byte

Page Code (34h Write Frame Error Counters, 35h Read Frame Error Counters)

Reserved

Page Length (88h)

(MSB)

(LSB)

6-28

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

The Error Counter Parameter format is shown in Table 6-33

Table 6-33: Read and Write Frame Error Counter Page Parameter format

Bit

Byte

(MSB)

Parameter Code

(LSB)

(0b)

(1b)

TSD

(0b)

ETC

(0b)

TMC

(00b)

LBIN

(0b)

Parameter Length (4)

Parameter Value

(MSB)

(LSB)

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-29

6.Command Specification

LOG SENSE

6.6.11. Data Compression Transfer Log Page (39h) (Sony Unique)

The page allows the initiator to monitor the performance of the ALDC compression. The PC field in LOG SENSE

determines whether current cumulative or current/default threshold values are returned. The page has the

following format:

Table 6-34: Data Compression Transfer Log Page

Bit

Byte

Reserved

Page Code (39h)

Reserved

Page Length (58h)

(MSB)

DU (0)

(MSB)

(LSB)

Parameter Code (n)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (4)

Parameter Value

(LSB)

Data Compression Log Page Fields:

Supported Parameter Codes in this page and their meanings are as follows:

Code

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

Description

Length

Number of entities written

Number of entities read

Number of records written

Number of records read

Megabytes to data compression

Megabytes from data compression

Megabytes to tape

Megabytes from tape

Logical entity size

Physical entity size

Uncompressed entities

Entities Written/Read: The total number of complete entities written to or read from the tape since the last

power-on or Clear Log operation.

Records Written/Read: The total number of records (both compressed and uncompressed) written to or read

from the tape since the last power-on or Clear Log operation.

Kilobytes to/from Data Compression: The total number of kilobytes written to or read from the tape since the

last power-on or Clear Log operation. For Kilobytes from Data Compression, this number may be greater than the

number of kilobytes transferred to the initiator due to read ahead.

Logical Entity Size: The logical size of the last entity written to or read from the tape: size = number of record in

entity × record size in bytes

Physical Entity Size: The physical size of the last entity written to or read from the tape: size = entity header

length + uncompressed data length

Uncompressed Entities: The total number of times non-ALDC entities have been encountered on the tape during

read operations since the last power-on or Clear Log operation.

6-30

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6.12. AIT Log Page (3Ch) (Sony Unique)

This page is for the AIT original Tape Log. The AIT Tape Log of each fields are larger than legacy Tape Log Page.

The legacy Tape Log Page returns the part of AIT original. This page indicates the Partition Information at the

current Partition.

Table 6-35: AIT Log Page

Bit

Byte

Page Code (3Ch)

Reserved

Page Length (n+1)

(MSB)

(LSB)

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0001h - 0012h and 0101h - 0112h)

(LSB)

LP (0)

DS (1)

TSD (0) ET (0) TMC (00)

LBIN (0)

Parameter Length (n-3)

Parameter Value

(LSB)

Parameter Code:

Code

Description

Length

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

000Ch

000Dh

000Eh

000Fh

0010h

0011h

0012h

Current Groups Written

Current Rewritten Tracks

Current Groups Read

Current C3 ECC Count

Previous Groups Written

Previous Rewritten Tracks

Previous Groups Read

Previous C3 ECC Count

Total Groups Written

Total Rewritten Tracks

Total Groups Read

Total C3 ECC Count

Load Count

Access Count

Update Replace Count

Last Valid Absolute Frame Number

Partition Attribute

Maximum Absolute Frame Number

Previous Groups Written: This is the number of groups physically written to the tape or partition since the last

update of the System area. Where Repeat Writing is in force, this count increments for each instance.

Total Groups Written: This is the total number of groups physically written to the tape or partition since the first

time the tape or partition was written. The number accumulates over the life of the tape but is ZEROed by a format

pass. Where Repeat Writing is in force, this count increments for each instance.

Previous Groups Read: This is the number of groups physically read from the tape or partition since the last

update of the System area.

Total Groups Read: This is the total number of groups physically read from the tape or partition since the first

time the tape or partition was written. This does not include any reading as part of a Read-After-Write check. The

number accumulates over the life of the tape but is ZEROed by a format pass.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-31

6.Command Specification

LOG SENSE

Total Rewritten Frames: This is the total number of frames on the tape or within the partition that were needed to

be rewritten since the tape or partition was first written. It is incremented by 1 each time a frame is repeated

following error detection by the Read-After-Write process. This count does not include any frames which are

written between the original frame and its rewrite. The number accumulates over the life of the tape but is ZEROed

by a format pass.

Total 3rd ECC Count: This is the number of groups which have been physically read and data has not been

recovered without requiring the use of C3 correction since the first time the tape or partition was written. The

number accumulates over the life of the tape but is ZEROed by a format pass.

Access Count: This is the number of times the drive accesses the partition. The both an "Unload" and a "Change

Partition" is the event for incrementing the Access Count counter.

Update Replace Count: This is the number of times the drive update the partition.

Previous Rewritten Frames: This is the number of frames on the tape or within the partition that were needed to

be rewritten since the last update of the System area. It is incremented by 1 each time a frame is repeated

following error detection by the Read-After-Write process. This count does not include any frames which are

written between the original frame and its rewrite.

Previous 3rd ECC Count: This is the number of groups which have been physically read and data has not been

recovered without requiring the use of C3 correction since the last update of the System area.

Load Count: This is the number of times the tape has been loaded since the first time a tape was written. One

load consists of threading the media around the drum of the drive mechanism, positioning the tape ready for use

and later unthreading the media. The number accumulates over the life of the tape but is ZEROed by a format

pass. This field is Reserved in the System Log of Partition 0 of a multiple partitioned tape.

Last Valid Absolute Frame Number: This field will specify the Absolute Frame Number which is the number of

Frames written since the beginning of the partition, excluding any Frames that are written in the test area. The first

Frame of the Reference area is the first Frame after the Logical Beginning-Of-Tape (LBOT) point of the current

partition and has an Absolute Frame Number of 1. Any discontinuous or repeated numbers will occur only in an

Amble Frame sequence.

Maximum Absolute Frame Count: This field will specify the Absolute Frame Number of the last Frame of the last

EOD Area as the Maximum Absolute Frame Number. After that, the Maximum Absolute Frame Number is equal to

the Valid Maximum Absolute Frame Number, because the whole data area in the partition contains valid data. The

Maximum Absolute Frame Number will not be changed as long as the partition size is the same.

Partition Attributes: This field is not supported and will be always set to ZERO.

6-32

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

6.6.13. MIC Fixed Length Information Page (3Dh) (Sony Unique)

Table 6-36: MIC Fixed Length Information Page

Bit

Byte

Page Code (3Dh)

Reserved

Page Length (n+1)

(MSB)

(LSB)

Parameter Code:

Code

Description

Length

0001h

0002h

0003h

0004h

0005h

0006h

0007h

0008h

0009h

000Ah

000Bh

000Ch

000Dh

000Eh

000Fh

0010h

0011h

0012h

MIC Logical Format Type

Device Configuration bits

Available free byte count

User Volume Note size

Reserved

Cassette Serial Number, etc.

Reserved

0013h

0014h

0015h

0016h

0017h

0018h

Reserved

Obsolete

Accumulative System Log

Volume Information

Element Address

User Partition Note size for Partition #0

Note:

1. Parameter Code 0002h AIT Device Configuration Byte is the same byte value returned in Mode Sense Page

31h byte 2. See page 6-58 paragraph 6.8.1 for a description of the fields in this byte.

2. Parameter Code 0003h Available Free Byte Count represents the current user MIC memory that is available

for writing data to the MIC using the Log Select command through Page 3Eh Parameter Code 0001h,

0002h, …. 000Nh. If Available Free Byte Count is 1 or higher the application may use exactly that size or

smaller to write MIC User data. If this field is ZERO a Check Condition status is returned if attempts are

made to write data to the MIC. If the application attempts to write data to the MIC that is larger than this field

a Check Condition status will also be returned. In both cases where Check Condition status is returned no

data is written to the MIC.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-33

6.Command Specification

LOG SENSE

Parameter Code 0017h Drive Element Address data field is reserved. The drive always returns ZERO for this field.

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0001h)

(LSB)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

LP (0)

Parameter Length (4)

MIC Logical Format Type

(LSB)

Bit

Byte

(MSB)

DU (0)

Parameter Code (0002h)

(LSB)

LP (0)

DS 1)

TSD (0)

ABS

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (4)

Reserved

DEVICE

ULPBOT

AIT

(MSB)

PRTH

PONEJ

SysLogAlive

(LSB)

Reserved

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0003h)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

Parameter Length (4)

Available Free Byte Count

TMC (00)

LBIN (0)

(LSB)

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0004h)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

Parameter Length (4)

User Volume Note Size

TMC (00)

LBIN (0)

(LSB)

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0005h)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (8)

Reserved

(LSB)

6-34

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0006h)

(LSB)

LP (1)

DS (0)

TSD (1)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (32)

Cassette Serial Number (ASCII Code)

(LSB)

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0007h – 0013h)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

Parameter Length (32)

Reserved

TMC (00)

LBIN (0)

(LSB)

Bit

Byte

(MSB)

DU (0)

Parameter Code (0014h)

(User Partition Note Map)

ETC (0)

Parameter Length (32)

Obsolete

(LSB)

LP (0)

DS (1)

TSD (0)

TMC (00)

LBIN (0)

Bit

Byte

(MSB)

DU (0)

Parameter Code (0015h)

(Accumulative System Log)

(LSB)

LP (0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (90)

(MSB)

CURRENT AMOUNT OF DATA WRITTEN

The CURRENT WRITE RETRIES COUNT

CURRENT AMOUNT OF DATA READ

CURRENT READ RETRIES COUNT

(LSB)

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-35

6.Command Specification

LOG SENSE

(MSB)

PREVIOUS AMOUNT OF DATA WRITTEN

PREVIOUS WRITE RETRIES COUNT

PREVIOUS AMOUNT OF DATA READ

PREVIOUS READ RETRIES COUNT

TOTAL AMOUNT OF DATA WRITTEN

TOTAL WRITE RETRIES COUNT

TOTAL AMOUNT OF DATA READ

TOTAL READ RETRIES COUNT

LOAD COUNT

(LSB)

TOTAL CHANGE PARTITION COUNT

TOTAL PARTITION INITIALIZE COUNT

6-36

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Bit

Byte

(MSB)

DU (0)

Parameter Code (0016h)

(Volume Information)

(LSB)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

LP (0)

Parameter Length (96)

Reserved (Eject Status)

Reserved (Reel Diameter)

Reserved

4-23

24-27

29-31

Initialize Count

ABS

Reserved

SysLogAlive

ULPBOT

AIT

34-99

Last Partition Number

Reserved

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0017h)

(Element Address)

(LSB)

LP(0)

DS (1)

TSD (0)

ETC (0)

TMC (00)

LBIN (0)

Parameter Length (4)

Reserved

(LSB)

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0018h)

(User Partition Note for Partition 0)

TSD (0) ETC (0) TMC (00)

Parameter Length (4)

User Partition Note Size for Partition 0

(LSB)

LP (0)

DS (1)

LBIN (0)

(LSB)

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-37

6.Command Specification

LOG SENSE

6.6.14. MIC Variable Length Information Page (3Eh) (Sony Unique)

Page 3Eh is a variable length page. That is not defined by ANSI. This page is Sony Vendor Unique.

Important NOTE:

1. Only one Parameter Code in Page 3Eh is transferred at a time.

2. Byte 3 of Parameter Code in the Page 3Eh is Reserved. (Will be set to ZERO.)

3. Parameter Length for the contents of the Parameter Code in Page 3Eh is stored at the byte position 4 and 5.

4. The Page Length field in the Page Code indicates the total number of bytes that follow this byte. This value is

independent of what is specified for the Allocation Length in the CDB.

Table 6-37: MIC Variable Length Information Page

Bit

Byte

Page Code (3Eh)

Reserved

Page Length (n-3)

(MSB)

(LSB)

Parameter Code

0001h

Description

User Volume Note

User Partition Note for Partition 0

0002h

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0001h)

(User Volume Note)

(LSB)

LP (1)

DS (1)

TSD (0)

ETC (0)

Reserved

TMC (00)

LBIN (1)

User Data Length

(LSB)

User Data

(LSB)

Bit

Byte

(MSB)

DU (0)

(MSB)

Parameter Code (0002h)

(User Partition Note for Partition #0)

TSD (0) ETC (0) TMC (00)

Reserved

(LSB)

LP (1)

DS (1)

LBIN (1)

User Data Length

(LSB)

User Data

6-38

SONY AIT-5 drive SDX-1100V series Ver.1.0

LOG SENSE

6.Command Specification

Note:

1. If there is no Note data in MIC for the Parameter Code specified in the CDB, a Check Condition status will be

returned.

2. If the Allocation Length of the CDB is ZERO, a Good status is always returned and there is no data phase.

If the Allocation Length of the CDB is non-ZERO and there is data in MIC for the Parameter Code, the user

data will be returned up to the size of the MIC data, as limited by the allocation length.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-39

6.Command Specification

MODE SELECT

6.7. MODE SELECT(6/10) 15h and 55h

Mode Select (6) CDB Format:

Bit

Byte

Operation Code (15h)

Reserved

Parameter List Length

Control

Reserved

SP (0)

Mode Select (10) CDB Format:

Bit

Byte

Operation Code (55h)

Reserved

SP (0)

Reserved

Parameter List Length (MSB)

Parameter List Length (LSB)

Control

The MODE SELECT (6/10) commands enable the initiator to configure the drive. Similarly MODE SENSE enables

the initiator to identify which configuration parameters the drive supports and what its current configuration is.

Implementing MODE SELECT and MODE SENSE requires a certain amount of "handshaking" between the

initiator and the drive. Before configuring the drive, the initiator will issue a MODE SENSE. This allows the drive to

return its current configuration and indicate what parameters are configurable. The initiator interprets this

information and may then issue a MODE SELECT command to set up the drive to the initiator’s preferred

configuration.

Note: In the MODE SELECT and MODE SENSE (operation code 1Ah) descriptions much of the information

overlaps and therefore the two descriptions will be read in conjunction.

MODE SELECT allows the initiator to specify configuration parameters to the drive.

PF: The Page Format bit indicates that the data sent by the initiator after the MODE SELECT header and block

descriptors complies with the definition of pages as set out in SCSI-2 or SCSI-3.

SP: The Save Parameters bit instructs the drive to save all savable pages. This bit is not supported and the drive

will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key, if it is set.

Parameter List Length: This specifies the length, in bytes, of the MODE SELECT parameter list that is

transferred during the DATA OUT phase. A ZERO parameter list length indicates that no data is transferred. The

Parameter List length must be a value which coincides with header, block descriptor or page boundaries. If this

does not occur then the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.

6-40

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

The MODE SELECT parameter list has the following format.

Table 6-38: MODE SELECT (6) parameter list

Bit

Byte

Reserved

(MSB)

Buffered Mode (001b)

Speed (00h)

Block Descriptor Length (0008h)

Density Code

Number of Blocks (00 00 00h)

(LSB)

Reserved

(MSB)

Block Length

(LSB)

Table 6-39:MODE SELECT (10) parameter list

Bit

Byte

Reserved

Buffered Mode

Speed (00h)

Reserved

Block Descriptor Length (08h)

Density Code

LONGLS

A (0)

6-7

(MSB)

Number of Blocks (00 00 00h)

(LSB)

Reserved

Block Length

Buffered Mode: Buffered Mode is the mechanism by which the drive implements Immediate Reporting on WRITE

commands.

If the field is ZERO, then the drive does not report a GOOD status on WRITE commands until the data blocks are

actually written to tape (not support).

If the Buffered Mode field is one, then the drive reports GOOD status on WRITE commands as soon as the data

block has been transferred to the buffer. This field will be set to ONE.

Speed: The drive only supports one speed, the default speed. Because of this, this field must be set to ZERO. Any

other value will cause a CHECK CONDITION status with an ILLEGAL REQUEST sense key to be returned.

Block Descriptor Length: This specifies the length in bytes of all the block descriptors. Since the drive only

allows one block descriptor, this value must be eight. Any other value will cause a CHECK CONDITION status with

an ILLEGAL REQUEST sense key to be returned.

Note: The block descriptor specifies the media characteristics for the SDX drive. The block descriptor contains the

density code, number of blocks and block length fields.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-41

6.Command Specification

MODE SELECT

Density Code: The supported values for the density code field are defined in the following table.

Table 6-40: Sequential-Access Density Codes

Code Value

30h

Code Value

AIT-1

AIT-2

AIT-3

AIT-3Ex

AIT-4

AIT-5

Format (not support)

Format

31h

32h

B3h

33h

34h

Format

7Fh

No change from previous density

Number of Blocks: A MODE SENSE field which will be returned as ZERO, indicating that all of the remaining

logical blocks on the media will have the medium characteristics specified by the block descriptor, or until a

subsequent MODE SELECT command changes those parameters. This field must be set to ZERO on a MODE

SELECT otherwise a CHECK CONDITION status will be returned with an ILLEGAL REQUEST sense key.

Block length: The Block Length field specifies the length in bytes of each logical block. A block length of ZERO

indicates that the length is variable. Any other value indicates the number of bytes per block that the drive must

handshake over the bus. This establishes block length such that the transfer length for read, write type commands

will be a block count not a byte count.

Note: It is value of this field together with the Fixed bit Field in the READ, or WRITE commands that determine

whether the drive is in Fixed or Variable block mode.

Mode

Fixed Bit in Read, Write

Block Length in

Mode Select/Sense

Block Size

Fixed Block

Variable Block

The default fixed block size is 0 bytes however, if a fixed command (fixed bit of ONE) is received, the drive will

return the CHECK CONDITION status with an ILLEGAL REQUEST sense key and the ASC will be set to

COMMAND SEQUENCE ERROR.

Note: Minimum block-size is 4. The figures must be multiples of 4, otherwise CHECK CONDITION status will be

returned with an ILLEGAL REQUEST sense key.

Following the Block Descriptor are the MODE SELECT pages. They are the method by which the device

parameters are set. Each page has a two byte header which identifies the page code and indicates the number of

bytes in that page.

Table 6-41: MODE SELECT Page Header

Bit

Byte

Reserved

Page Code

Additional Page Length

PS: when the Page Savable bit is set, this indicates that the page contains saved parameters. This bit will never

be set as there is no non-volatile RAM on the drive into which parameter data may be saved.

6-42

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

Supported page codes are:

Table 6-42: Supported MODE SELECT Page Codes

Page Code

00h

Description

Standard Sense

02h

0Ah

0Fh

10h

11h

1Ch

31h

32h

33h

3Fh

Disconnect-Reconnect

Control Mode Page

Data Compression Control

Device Configuration

Medium Partitions Parameter

Information Exception Control

AIT Device Configuration

Append Partition (obsolete)

Delete Partition (obsolete)

Return All Pages

Additional Page Length: Indicates the number of bytes in that page. The value does not, however, include bytes

0 and 1. The length is returned on MODE SENSE and must subsequently be set to the same value when

performing MODE SELECT.

If the page length does not match that expected by the drive a CHECK CONDITION status is returned with the

sense key to set to ILLEGAL REQUEST.

The drive also returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key if the initiator sends

an unsupported Page Code, a page field with values that are not supported or are not changeable. In this case, no

parameters will have been changed by the command.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-43

6.Command Specification

MODE SELECT

6.7.1. Disconnect-Reconnect Page (02h)

The drive supports the Disconnect-Reconnect Page which has the following format:

Table 6-43: Disconnect-Reconnect Page

Bit

Byte

PS(0)

Reserved

Page Code (02h)

Page Length (0Eh)

Buffer Full Ratio (00h)

Buffer Empty Ratio (00h)

Bus Inactivity Limit (00h)

(MSB)

(LSB)

Disconnect Time Limit (0000h)

Connect Time Limit (00h)

Maximum Burst Size (4000h)

Reserved

Fair Arbitration (00b)

Reserved

DTDC

Reserved

Buffer Full Ratio, Buffer Empty Ratio, Bus Inactivity Limit and Connect Time Limit fields are not supported by the

drive if set to non-ZERO values a CHECK CONDITION status is returned with ILLEGAL REQUEST sense key

set.

Disconnect Time Limit: This field indicates the minimum time in 100 microsecond increments that the drive will

wait after releasing the SCSI bus before attempting re-selection. This will be 0 and this is non-changeable field.

Maximum Burst Size: This field defines the maximum amount of data that the drive will transfer during a data

phase before disconnecting. This value is expressed in increments of 512 bytes. This is non-changeable field and

will be 4000h.

Note: 512 (200h) × 16384 (4000h) = 8388608(8 Mbytes) which means that the Maximum Burst Size is

approximately equal to SDX-1100V Buffer size for SCSI side.

FAIR ARBITRATION: This field indicates whether the drive will use fair or unfair arbitration when requesting an

interconnect tenancy. Setting this field to 1 will enable the SCSI Bus Fairness protocol. Setting this field to zero will

disable it. The drive determines fairness by monitoring prior arbitration attempts by other SCSI devices. It will

postpone arbitration for itself until all lower priority SCSI devices that previously lost arbitration either win a

subsequent arbitration or discontinue their arbitration attempts. It will monitor the arbitration attempts of the other

SCSI devices and refresh the fairness register with the SCSI ID’s of any lower priority SCSI devices that lost

arbitration. This field is not support.

DTDC: This field defines further restrictions on when a disconnect is permitted.

DTDC

Description

00b

Data transfer disconnect control is not used. Disconnect is controlled by the other field in this

page.

01b

A target will not attempt to disconnect once the data transfer of a command has started until all

data the command is to transfer has been transferred. The connect time limit and bus inactivity

limit are ignored during the data transfer.

10b

11b

Reserved

A target will not attempt to disconnect once the data transfer of a command has started until

the command is complete. The connect time limit and bus inactivity limit are ignored once data

transfer has started.

6-44

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

6.7.2. Control Mode Page (0Ah)

Bit

Byte

PS (0)

Reserved

Page Code (0Ah)

Page Length (0Ah)

Reserved

AUTOLOAD MODE

Reserved

The AUTOLOAD MODE field specifies the action to be taken by the drive when a media is inserted.

Table 6-44: AUTOLOAD MODE field

Value

Definition

000b

001b

010b

Medium will be loaded for full access

Medium will be loaded for medium auxiliary memory access only

Medium will not be loaded (not support)

Reserved

011b-111b

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-45

6.Command Specification

MODE SELECT

6.7.3. Data Compression Control Page (0Fh)

The drive supports the Data Compression Control Page which has the following format:

Table 6-45: Data Compression Control Page

Bit

Byte

PS (0)

Reserved

Page Code (0Fh)

Page Length (0Eh)

Reserved

DCE

DDE

DCC (1)

RED (00h)

(MSB)

Compression Algorithm (0003h)

(LSB)

(MSB)

Decompression Algorithm (0003h)

Reserved

This page specifies the parameters for the control of the data compression capability of the drive.

DCE: A Data Compression Enable (DCE) bit of one indicates that data compression is enabled. When this bit is

set, data sent to the device by the initiator will be processed using the selected compression algorithm before

being written to the medium. A DCE bit of ZERO indicates that data compression is disabled.

DCC: A Data Compression Capable (DCC) bit of one indicates that the drive supports data compression and will

process data sent to it for transferal to the medium using the selected compression algorithm when the DCE bit is

one. A DCC bit of ZERO indicates that the device does not support data compression. This will be a

non-changeable field. The SDX-1100V has the capability to decompress data and will set this bit to a one.

DDE: A Data Decompression Enable (DDE) bit of one indicates that data decompression is enabled. The

SDX-1100V will always decompress the data. Setting this bit to ZERO has no effect.

RED: The Report Exception on Decompression (RED) field indicates the device’s response to a boundary

condition caused by a change in the format of recorded data from:

uncompressed to compressed or compressed to uncompressed

This field is not supported and will be always set to 00b.

Compression Algorithm: The compression algorithm field indicates the compression algorithm the drive will use

to process data sent to it by the initiator (if the DCE bit is one).

The SDX-1100V supports the ALDC1 data compression algorithm which is identified by the value: 00 00 00 03h in

the compression algorithm field. A value of ZERO will indicate that no compression algorithm is currently selected.

Any other values in this field will cause the drive to return a CHECK CONDITION status the sense key will be set

to ILLEGAL REQUEST.

Decompression Algorithm: For MODE SELECT the decompression algorithm

field indicates the

decompression algorithm selected by the initiator for use in subsequent decompression of data encountered on

the medium.

The SDX-1100V can decompress data recorded with the ALDC1 algorithm therefore this field can be set to 00 00

00 03h. However, the SDX-1100V is capable of automatic recognition of the compression algorithm used to

process the data encountered on the medium. Therefore, the drive will override the value in the decompression

field (if is set to ZERO) for a subsequent read operation when ALDC1 compressed data is detected on the media.

For the MODE SENSE command, the decompression algorithm field reflects compression algorithm which was

used to process the data most recently encountered on the medium, during a read operation.

A value of ZERO will indicate that the data encountered on the medium during the most recent read operation was

uncompressed.

6-46

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

6.7.4. Device Configuration Page (10h)

The drive supports the Device Configuration Page which has the following format:

Table 6-46: Device Configuration Page

Bit

Byte

PS (0)

Reserved

CAP

Page Code (10h)

Page Length (0Eh)

Reserved

CAF (0)

Reserved

Active Partition

Write Buffer Full Ratio (00h)

Read Buffer Empty Ratio (00h)

Write Delay Time (0064h)

(MSB)

(LSB)

REW

DBR (0)

BIS (1)

RSmk

AVC (0)

Gap Size (00h)

EEG (1) SEW

SOCF (00b)

RBO (0)

EOD Defined (000b)

(MSB)

Reserved

Buffer Size at Early Warning (00 00 00h)

(LSB)

Select Data Compression Algorithm (00h)

Reserved

CAP: The Change Active Partition bit, when set to one, indicates that the partition is changed to the one specified

by the Active Partition Field. This is a feature supported by the drive and is discussed below.

CAF: The Change Active Format bit, set to one, indicates that the active format is to be changed to that set in the

Active Format Field.

Active Partition: Indicates the current partition number in use on the medium.

Setting this field to a non-existing partition number will be rejected by the drive with a CHECK CONDITION status

and the ILLEGAL REQUEST sense key set.

Write Buffer Full Ratio and Read Buffer Empty Ratio: These fields are not supported by the drive. Setting

these fields to anything other than ZERO will cause the drive to return a CHECK CONDITION status and an

ILLEGAL REQUEST sense key.

The drive implements an algorithm which automatically adjusts these ratios so as to maximize streaming to the

initiator.

Write Delay Time: This field indicates the maximum time, in 100 millisecond increments, that the drive will wait

with a partially full buffer before forcing the data to tape. The drive defaults to a 10 second delay since the last

SCSI bus activity before the data is flushed from the buffer to the tape. If Write Delay Time is set to ZERO, the

drive will wait indefinitely for the data group to be filled. This field is non changeable.

DBR: This field is not supported and will be always set to ZERO.

BIS: Block Identifiers Supported is set to one to indicate that the media has recorded information about the logical

block ID relative to the partition.

The DBR and BIS bit are only valid on a MODE SENSE command where they are used to report drive capabilities.

These bits are ignored by the drive on a MODE SELECT command. The drive will not return a CHECK

CONDITION.

RSmk: The Report Setmark bit, when set to one, indicates that Setmarks will be reported to the drive. When

ZERO, Setmarks are NOT reported. The default is one, Setmarks reported.

AVC: Automatic Velocity Control function is not supported by the drive and if this bit is set a CHECK CONDITION

status is returned with an ILLEGAL REQUEST sense key.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-47

6.Command Specification

MODE SELECT

SOCF: Stop on Consecutive Filemarks function is not supported by the drive and if this bit is set a CHECK

CONDITION status is returned with an ILLEGAL REQUEST sense key.

RBO: This field is not supported. If this bit is set a CHECK CONDITION status is returned with an ILLEGAL

REQUEST sense key.

REW: The Report Early-Warning End-of –Media bit is set to ZERO indicates the drive will not report the

Early-Warning condition on reads but will report Early-Warning on writes before the physical End-Of –Partition.

The REW bit is changeable. A value of ONE indicates that the drive will report the Early-Warning condition on

writes and reads.

Gap Size: This field is not supported by the SDX-1100V and will be set to ZERO otherwise a CHECK CONDITION

with an ILLEGAL REQUEST sense key will be returned.

EOD Defined: This field will always be set to ZERO so that the drive will use its default EOD definition to detect

and generate EOD. Any other value will cause the drive to return a CHECK CONDITION status with an ILLEGAL

REQUEST sense key set.

EEG: The Enable EOD Generation bit will always be set to indicate that drive will generate an EOD. The drive

generates an EOD prior to any change of direction, if that change follows a write-type operation. This bit is only

valid on the MODE SENSE command where it is used to report drive capabilities. This bit is ignored by the drive

on a MODE SELECT command. The drive will not return a CHECK CONDITION.

SEW: The Synchronize at Early-Warning bit is set to ONE indicates buffered write data, Filemarks and Setmarks

at or after Early-Warning End-of-Media will be written to the Medium. The SEW bit changeable. A value of ZERO

indicates that the target will retain any unwritten buffered data, Filemarks, or Setmarks in the buffer when logical

Early-Warning is encountered. The default is 1.

Buffer Size at Early Warning: This field is not supported by the drive and if set, a CHECK CONDITION status is

returned with an ILLEGAL REQUEST sense key set.

Select Data Compression Algorithm: The SDX-1100V supports the Data Compression Page and that page will

be used instead of this field to control Data Compression. This field is not supported by the drive and if set, a

CHECK CONDITION status is returned with an ILLEGAL REQUEST sense key set.

6-48

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

6.7.5. Medium Partitions Parameter Page (11h)

The drive supports the Medium Partitions Parameter Page, which has the following format:

Table 6-47: Medium Partitions Parameter Page

Bit

Byte

PS (0)

Reserved

Page Code (11h)

Page Length (0Ah)

Maximum Additional Partitions (0h)

Additional Partitions Defined (00h)

FDP (0)

SDP (0)

IDP

PSUM

Reserved

Medium Format Recognition (03h)

Reserved

Partition Units

Reserved

(MSB)

Partition Size (Partition 0)

(LSB)

Obsolete

Warning: This page is used to format a tape to one partition. Extreme care must be taken with this parameter

page to avoid accidental reformatting of a tape. Reformatting will destroy all previous data.

Maximum Additional Partitions: This field is only valid on MODE SENSE where it is used to report the maximum

number of additional partitions that are supported by the drive. This field is non-changeable, however it accepts all

values as a don’t care. This number is the maximum number of additional partitions supported.

Additional Partitions Defined: This field specifies the number of additional partitions to be defined for the tape

based on the IDP bit. The maximum allowed is the value returned in the Maximum Additional Partitions field.

FDP: The Fixed Data Partitions bit is not supported by the drive and if set, a CHECK CONDITION status is

returned with an ILLEGAL REQUEST Sense Key set.

SDP: The Select Data Partitions bit is not supported by the drive and if set, a CHECK CONDITION status is

returned with an ILLEGAL REQUEST Sense Key set.

IDP: The initiator Defined Partitions bit is supported and, when set to one, indicates that the tape will be partitioned

based on the Additional Partitions Defined field, PSUM and Partition Size field.

PSUM: The Partition Size Unit of Measured field defines the units in which the Partition Size value selects the

partition size.

Table 6-48: PSUM values

Code

00b

01b

10b

11b

Description

Support

Not Support

Support

bytes (unit of one)

kilobytes (10³bytes)

Megabytes (10⁶bytes)

10 ^{(PARTITION UNITS)}bytes

Support

Partition Units: This field defines the size of the partition size descriptors when the PSUM field is set to 11b. A

value of n in the PARTITION UNITS field will define the units of the partition size descriptors as 10 bytes.

SDX-1100V Supports following combinations.

PSUM

Partition Units

11b

0111b : 10 byte (AIT-3)

1001b : 10 byte (AIT-3Ex/AIT-4/AIT-5 Mode)

If another value is set these fields, a CHECK CONDITION status is returned with an ILLEGAL REQUEST sense

key set.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-49

6.Command Specification

MODE SELECT

Medium Format Recognition: This field is only valid on a MODE SENSE and is set to 03h to indicate that the

drive is capable of format and partition recognition. This is non-changeable field. It accepts all the value, however

always returns 03.

Partition Sizes: This field allows the initiator to allocate the capacity of each partition. It will also allow the initiator

to reallocate the capacity of previously partitioned tapes.

If the Additional Partitions Defined fields are set to ZERO, the drive will reformat the tape.

The size of partition 0 is only valid during Mode Sense and is ignored during Mode Select. For Mode Select only

partition 1 size is used when Additional Partitions Defined field is set to 01h. Partition 0 size is ignored. Internally,

the drive computes partition 0 size to be the remaining capacity of the tape. This remaining capacity is the

maximum uncompressed capacity minus partition 1 size.

A second way to issue Mode Select Page 11h is to set Page Length to 08h, and set bytes 8 and 9 to partition 1

size. In this method partition 0 size is not sent, but this size is still computed as defined above. In either case,

Mode Sense will report partition 0 and partition 1 sizes.

6-50

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

6.7.6. Informational Exceptions Control Page (1Ch)

The Informational Exceptions control page defines the methods used by the target to control the reporting and the

operations of specific informational exception conditions.

Table 6-49 : Informational Exceptions Control Page

Bit

Byte

PS(0)

Perf(0)

(MSB)

Reserved

Page Code (1Ch)

Page Length (0Ah)

DExcpt

Reserved (0)

Test

Reserved LogErr (0)

MRIE

Reserved

Interval Timer

(00 00 00 00h)

Report Count/Test Flag Number

(LSB)

LogErr: This field is not supported.

DE xcpt: The Disable Exception Control (DE xcpt ) bit of ZERO indicates information operations will be enabled.

The reporting of information exception conditions when the Dexcpt bit is set to ZERO is determined from the

method of reporting informational exception field. The Dexcpt bit of ONE indicates the drive will be disable all

information exception operations. The method of reporting informational exceptions field is ignored when Dexcpt is

set to ONE.

Test: The Test bit of ZERO indicates the drive will not generate any test/false informational exception condition.

This bit of ONE indicates the drive will generate test/false informational exception conditions. The default value of

Test is ZERO.

Perf: The Performance bit (Per) of ZERO indicates that informational exception operations that are the cause of

delays are acceptable. The Perf bit of ONE indicates the drive will be set to ZERO otherwise a CHECK

CONDITION with an ILLEGAL REQUEST sense key set.

MRIE: The Method of Reporting Informational Exceptions field (MRIE) indicates the method used by the drive to

report informational exception conditions. If the informational exception condition was generated by an event that

caused a real CHECK CONDITION to occur, then this real CHECK CONDITION will over-ride the CHECK

CONDITION defined in MRIE modes. The drive supports value 0, 3 and 4.

When MRIE is set to 0, this method instructs the drive not to report informational exception conditions. When

MRIE is set to 4 (Unconditionally generate RECOVERED ERROR), this method instructs the drive to report

informational exception conditions by returning a CHECK CONDITION status on the next SCSI command

(excluding INQUIRY, REQUEST SENSE and REPORT LUNS) after an informational exception condition was

detected. The sense key will be set to RECOVERED ERROR and the ASC will indicate the cause of the

information exception condition (which is 5D/00h). The command that has the CHECK CONDITION will complete

without error before any exception condition may be reported (and thus does not need to be reported).

Interval Timer: This field is not supported by the drive and if set, a CHECK CONDITION status is returned with an

ILLEGAL REQUEST sense key set.

Report Count /Test Flag Number: This field has a dual purpose. When Test bit is set to ZERO, the value of this

field in the MODE SELECT data represents the Report Count. When a MODE SELECT command is sent with the

Test bit it set to ONE, the value of this field in the MODE SELECT data represents the Test Flag Number, which is

never returned in response to a MODE SENSE command. Valid values of Test Number are –64 to 64 and 32767

(7FFFh). Negative numbers are represented using the 2’s complement method. If the Test Flag Number is set to

an invalid value, the MODE SELECT command will return CHECK CONDITION with sense key set to ILLEGAL

REQUEST and extended sense set to Invalid Field in Parameter list.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-51

6.Command Specification

MODE SELECT

6.7.7. AIT Device Configuration Page (31h)

Note 1: The values set by Mode Select Page 31h become valid after the Mode Select Page 11h command is

completed.

Note 2: The values reported by Mode Sense Page 31h always indicate a status of the cassette. It is not a mode

condition of the drive.

Note 3: For initializing AIT native mode cassette, Mode Select Page 31h must be issued before Mode Select

Page 11h.

Table 6-50: AIT Device Configuration Page

Bit

Byte

Reserved

Page Code (31h)

Page Length (08h)

ULPBOT PRTH (0)

SPAN (0Ah)

PONEJ

(0)

AIT

DEVICE

WORM

ABS (1)

SysLogAlive

MIC

Reserved

AIT: The AIT-bit is a changeable bit. The status of the AIT-bit is valid after a cassette is initialized. Until then the

AIT-bit indicates ZERO, even if the bit is set with the Mode Select command.

0 - DDS emulation mode

1 - AIT native mode (default)

Device:

0 - Do not create optional device area. (DDS mode only)

1 - Create optional device area. (AIT mode only)

ABS:

0 - Do not create the Absolute Volume Map information. (Not Supported)

1 - Create and maintain the Absolute Volume Map information.

ULPBOT:

0 - Load/unload is performed at the Optional Device Area, except for partition 0 (Not Supported).

1 - Load/ unload must be performed at the device area located at PBOT, even if there is an Optional Device Area.

(default)

PRTH:

0 - Allow Thread; Thread the tape after cartridge insertion, and return ready status. (default)

1 - Prevent Thread; Do not thread the tape after cartridge insertion, and return ready status immediately after the

cartridge is loaded. The tape will automatically be threaded when a media access SCSI command (Erase, Locate,

Mode Select Page 11h, Read, Read Position, Seek Block, Space, Write, and Write Filemark) is received from the

initiator. (Not Supported)

6-52

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SELECT

6.Command Specification

PONEJ: This bit is recorded in drive’s EEPROM, and it effects the drive itself. (Not Supported)

0 - Power On immediate Eject disable. If this bit set to 0, then the cassette will stay in the drive when power is

applied. (default)

1 - Power On immediate Eject enable. If this bit set to 1, then cassette will be immediately ejected when power

is applied to the drive.

SPAN: The SPAN field is in binary notation. This field is unchangeable. When MIC cartridge is inserted, this field is

set to 0Ah (00001010b), other values are prohibited.

SysLogAlive:

0 0 - System logs located only on tape. (default for SDX-T3N)

1 1 - System logs located only in MIC. (default for MIC cartridge)

The SysLogAlive-bits will be set to 00B for non-MIC cartridges, and to 11B for MIC cartridges. Other bit

combinations are prohibited.

MIC: This bit is effective for Mode Sense only. If this bit is 0 then MIC has not been detected in the cassette.

WORM: If this bit is 1, then WORM cassette is detected.

WC (WORM CAPABLE): If this bit is 0, then this drive does not support WORM cassette. If this bit is 1, then this

drive support WORM cassette.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-53

6.Command Specification

MODE SENSE

6.8. MODE SENSE (6/10) 1Ah and 5Ah

Table 6-51: Mode Sense (6) CDB Format

Bit

Byte

Operation Code (1Ah)

DBD

Reserved

PCF

Page Code

Reserved

Allocation Length

Control

Table 6-52: Mode Sense (10) CDB Format

Bit

Byte

Operation Code (5Ah)

LLBAA (0) DBD

Page Code

Reserved

PCF

Reserved

3-6

7-8

Reserved

Allocation Length

Control

The MODE SENSE (6/10) commands provide a means to report parameter of default, current and changeable

configuration parameters. They are complementary to MODE SELECT (6/10) commands. The 6-byte and 10-byte

commands can be interchanged.

The format of the data returned is different for the 6-byte and 10-byte commands. See the MODE SELECT (6/10)

commands for the mode header format differences.

LLBAA: The LLBAA function is not supported. This field must be ZERO. This field is defined for MODE SENSE 10

only.

If this field is not set to 0b for a MODE SENSE (10) command, the command terminates with CHECK CONDITION

status, the sense key set to ILLEGAL REQUEST, the ASC/ASCQ is set to INVALID FIELD IN CDB.

DBD: A Disable Block Descriptors (DBD) bit of ZERO indicates that the target may return ZERO or more block

descriptors in the returned MODE SENSE data at the target's discretion. A DBD bit of one specifies that the target

will not return any block descriptors in the returned MODE SENSE data.

PC: The Page Control field indicates the type of page parameter values to be returned to the initiator as shown

below.

Table 6-53: Page Control field values

Bit 7

Bit 6

Parameter Values

Description

Current Values

This is the normal default situation where the drive returns to the

initiator its current configuration. Page fields not supported are set to

ZERO by the drive.

Changeable Values

These are any values which a initiator may alter in a subsequent

MODE SELECT command. Any field that the drive allows to be

changed is set to one. Otherwise the field is set to ZERO.

These are the default values on power-up

Default Values

Saved Values

Not supported by the drive

Page Code: This allows the initiator to select any specific or all pages supported by the drive.

6-54

SONY AIT-5 drive SDX-1100V series Ver.1.0

MODE SENSE

6.Command Specification

Supported page codes are:

Table 6-54: Supported MODE SENSE Page Codes

Page Code

00h

Description

Standard Sense

02h

Disconnect-Reconnect

0Ah

Control Mode Page

0Fh

10h

Data Compression Control

Device Configuration

11h

1Ch

31h

32h

33h

Medium Partitions Parameter

Informational Exception Control

AIT Device Configuration

Append Partition (Not Support)

Delete Partition (Not Support)

Return All Pages

3Fh

If the initiator selects any other values, the drive will terminate the command with a CHECK CONDITION status

and an ILLEGAL REQUEST sense key set.

Note: If the Page Code is ZERO, the drive will only return the four-byte header and the eight-byte block descriptor

and terminate the command with GOOD status.

Allocation Length: The Allocation Length specifies the number of bytes that the initiator has allocated for

returned MODE SENSE data. An Allocation Length of ZERO means that the drive will return no MODE SENSE

data. This is not considered an error and GOOD status will be returned. Any other value indicates the maximum

number of bytes that can be transferred. The drive terminates the DATA-IN phase when the Allocation Length

bytes have been transferred or when all available MODE SENSE data has been transferred to the initiator,

whichever is less. The Allocation Length must fall on header or block descriptor boundaries. If the Allocation

Length does not fall on these boundaries then the drive returns CHECK CONDITION status with the ILLEGAL

REQUEST sense key set, unless the value is greater than that required for the specified page.

If the Page Code is ZERO, the initiator requires MODE SENSE to only return the four-byte header the one

eight-byte block descriptor, therefore the Allocation Length must be set to 0Ch. The value of the Page Control

Field is then not checked by the drive and may be set to any value.

If the Allocation Length is non-ZERO, it must be set to 4 or more. If the Allocation length is non-ZERO and less

than 4, the drive will return CHECK CONDITION status and ILLEGAL REQUEST sense key.

The MODE SENSE data contains a four-byte header, followed by eight-byte block descriptor, followed by ZERO or

more variable length pages, depending on the Page Code and the Allocation Length.

Table 6-55: MODE SENSE data

Bit

Byte

Mode Data Length

Medium Type (00h)

Buffered Mode (001b)

Block Descriptor Length (08h)

Speed (00h)

Density Code (33h)

Number of Blocks (00 00 00h)

Reserved

(MSB)

(LSB)

(MSB)

Block Length

Mode Data Length: The mode data length specifies the length in bytes of the following MODE SENSE data that is

available to be transferred during the DATA-IN phase. The mode data length does not include itself but does

include the total length of all requested MODE SENSE pages.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-55

6.Command Specification

MODE SENSE

Media Type: The media value will be ZERO as only one media type is supported.

WP: A Write Protected bit of ZERO indicates that the tape is write enabled. A Write Protected bit of one indicates

that the tape is write protected.

Buffered Mode: if this bit is set to ZERO, the drive will not report a GOOD status on WRITE commands until the

data blocks are actually written on the tape. If set, the drive is in buffered mode and may report a GOOD status

on WRITE commands as soon as the data block has been transferred to the drive’s buffer. One or more blocks

may be buffered prior to writing to the tape. (Not support)

If the Buffered Mode field is ONE, then drive reports GOOD status on WRITE commands as soon as the data

block has been transferred to the buffer, this field will be set to ONE.

Speed Field: will return ZERO as the drive only supports one speed.

Block Descriptor Length: returns a value of 8, which specifies the length in bytes of the following Block

Descriptor. The drive only returns a single Block Descriptor.

Density Code: Refer to Table 6-40 regarding the Density Code field.

Number of Blocks: The Number of Blocks field is ZERO, indicating that an unspecified (or unknown) number of

the remaining logical blocks on the tape may have the media characteristics specified by the Block Descriptor.

Block Length: The Block Length field specifies the length in bytes of each logical block transferred over the SCSI

bus. A Block Length of ZERO indicates that the length is variable. Any other value indicates the number of bytes

per block that the drive must handshake over the bus. This establishes Block Length such that the Transfer Length

for read, write command will be a block count not a byte count.

Note: It is value of this field together with the Fixed bit Field in the READ, or WRITE commands that determine

whether the drive is in Fixed or Variable block mode. The minimum length is 4 and it always will be a multiple of 4.

Page Descriptor: The supported pages are fully documented in the MODE SELECT clause of this Chapter.

PS: When the Page Savable bit is set, this indicates that the page contains saved parameters. This bit will never

be set as there is no non-volatile RAM on the drive into which parameter data may be saved.

All fields not supported by the drive must be set to ZEROs.

6-56

SONY AIT-5 drive SDX-1100V series Ver.1.0

PERSISTENT RESERVE IN

6.Command Specification

6.9. PERSISTENT RESERVE IN 5Eh

Bit

Byte

Operation Code (5Eh)

Reserved

SERVICE ACTION

Reserved

(MSB)

Allocation Length

(LSB)

Control

The PERSISTENT RESERV IN command is used to obtain about persistent reservations and reservation keys

that are active within a drive.

The actual length of the PERSISTENT RESERVE IN parameter data is available in a parameter data field.

SERVICE ACTION: The service action codes are defined:

Table 6-56: PERSISTENT RESERVATION IN Service action codes

Code

00h

01h

Name

READ KEYS

READ RESERVATION

Description

Reads all registered Reservation Keys

Reads the current persistent reservations

Reserved

02h-1fh Reserved

READ KEYS – The READ KEYS service action that the drive return a parameter list containing a header and a list

of each current registered initiator’s reservation key. If multiple initiators have registered with the same key, then

that key value will be listed multiple times, once for each such registration.

READ RESERVATIONS – The READ RESERVATIONS service action requests that the drive return a parameter

list containing a header and the persistent reservation(s), if any, that is present in the drive. Multiple persistent

reservations may be returned only if element reservations are present.

Allocation Length: The Allocation Length field indicates how much space has been reserved for the returned

parameter list. If length is not sufficient to contain the entire parameter list, the first portion of the list will be

returned. This will not be considered an error. If the remainder of the list is required, the application client will send

a new PERSISTENT RESERV IN command with a Allocation Length field large enough to contain the entire list.

The returned parameter data provided in response to a PERSISTENT RESERVE IN command with the READ

KEYS service action has the following format:

Table 6-57: PERSISTENT RESERVATION IN parameter data for READ KEYS

Bit

Byte

(MSB)

GENERATION

(LSB)

Additional Length

Reservation Key list

First reservation key

n-7

(MSB)

(LSB)

Last reservation key

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-57

6.Command Specification

PERSISTENT RESERVE IN

GENERATION: This field will contain a 32-bit counter maintained by the drive that will be incremented every time

a PERSISTENT RESERVE OUT command requests a REGISTER, a CLEAR, a PREEMPT, or a PREEMPT AND

ABORT service action. The counter will not be incremented by a PERSISTENT RESERVE IN command, by a

PERSISTENT RESERVE OUT command that performs a RESERVE or RELEASE service action, or by a

PERSISTENT RESERVE OUT command that is not performed due to an error or reservation conflict. The

generation value will be set to 0 as part of the power on reset process.

Additional Length: This filed contains a counter of the number of bytes in the Reservation key list. If the

allocation length specified by the PERSISTENT RESERVE IN command is not sufficient to contain the entire

parameter list, then only the bytes from 0 to the maximum allowed allocation length will be sent to the application

client. The incremental remaining bytes will be truncated, although the Additional Length field will still contain the

actual number of bytes in the reservation key list without consideration of any truncation resulting from an

insufficient allocation length. This will not be considered an error.

Reservation Key: The reservation key list contains the 8-byte reservation keys for all initiators that have

registered through all ports with drive.

The returned the parameter data provided in response to a PERSISTENT RESERVE IN command with the READ

RESERVATION service action has the following format:

Table 6-58: PERSISTENT RESERVATION IN parameter data for READ RESERVATION

Bit

Byte

(MSB)

GENERATION

Additional Length

(LSB)

Reservation descriptor

GENERATION: This field will be defined for the PERSISTENT RESERVE IN READ KEYS parameter data.

Additional Length: This filed contains a counter of the number of bytes to follow in Reservation descriptor. If the

allocation length specified by the PERSISTENT RESERVE IN command is not sufficient to contain the entire

parameter list, then only the bytes from 0 to the maximum allowed allocation length will be sent to the application

client. The incremental remaining bytes will be truncated, although the Additional Length field will still contain the

actual number of bytes of Reservation descriptor and will not be affected by the truncation. This will not be

considered an error.

Reservation descriptor: The format of this field is defined in Table 6-59.

Table 6-59: PERSISTENT RESERVATION IN Reservation Descriptor

Bit

Byte

(MSB)

Reservation Key

(LSB)

SCOPE-SPECIFIC Address

(0 0 0 0)

Reserved

SCOPE

TYPE

Obsolete

The Reservation descriptor for each reservation will contain the Reservation Key under which the persistent

reservation is held. The TYPE and SCOPE of each persistent reservation as present in the PERSISTENT

RESERVE OUT command that created the persistent reservation will be returned.

SCOPE-SPECIFIC Address: The drive does not support an Element reservation. This field will be set to zero.

6-58

SONY AIT-5 drive SDX-1100V series Ver.1.0

PERSISTENT RESERVE IN

6.Command Specification

SCOPE: The value in this field indicates whether a persistent reservation applies to an entire logical unit to an

element. The value in this filed are defined in Table 6-60.

Table 6-60: PERSISTENT RESERVATION SCOPE Codes

Code

Name

Description

Persistent reservation applies to the full logical unit

Obsolete

Logical unit

Obsolete

3h-fh

Element (not supported in this drive) Persistent reservation applies to the specified element

Reserved Reserved

Logical unit: A SCOPE value of logical unit indicates that the persistent reservation applies to the entire logical

unit. The logical unit scope will be implemented by all targets that implement PERSISTENT RESERVE OUT.

Element: A SCOPE filed value of Element indicates that the persistent reservation applies to the element of the

logical unit defined by the SCOPE-SPECIFIC Address field in the PERSISTENT RESERVE OUT parameter list.

The drive do not support it.

TYPE: The value in the TYPE filed specify the characteristics of the persistent reservation being established for all

data blocks within the element or within the logical unit. Table 6-61 defines the characteristic of the different type

values. For each persistent reservation type, Table 6-61 lists code value and describes the required target support.

In this table, the description of required target support is divided in two paragraphs. The first paragraph defines the

required handling for read operations. The second paragraph defines the required handling for write operations.

Table 6-61: PERSISTENT RESERVATION TYPE Codes

Code

Name

Write

Description

Obsolete

Reads Shared: Any application client on any initiator may execute tasks that

request transfers from the storage medium or cache of the logical unit to the

initiator.

Exclusive

Writes Exclusive: Any task from any initiator other than the initiator holding the

persistent reservation that requests a transfer from the initiator to the storage

medium or cache of the logical unit will result in a reservation conflict.

Obsolete

Reads Exclusive: Any task from any initiator other than the initiator holding the

persistent reservation that requests a transfer from the storage medium or cache of

the logical unit will result in a reservation conflict.

Exclusive

Access

Write Exclusive: Any task from any initiator other than the initiator holding the

persistent reservation that requests a transfer from the initiator to the storage

medium or cache of the logical unit will result in a reservation conflict.

Obsolete

Reads Shared: Any application client on any initiator may execute tasks that

request transfers from the storage medium or cache of the logical unit to the

initiator.

Writes Exclusive: Any task from any initiator other than the initiator holding the

persistent reservation that requests a transfer from the initiator to the storage

medium or cache of the logical unit will result in a reservation conflict.

Reads Exclusive: A task that requests a transfer from the storage medium or

cache of the logical unit to an initiator that has not previously requested a

Write Exclusive: Any task from any initiator other than the initiator holding the

persistent reservation that requests a transfer from the initiator to the storage

medium or cache of the logical unit will result in a reservation conflict.

Write

Exclusive-

Registrants

Only

Exclusive

Access-

Registrants

Only (not

supported in

this drive)

Reserved

7h-Fh

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-59

6.Command Specification

PERSISTENT RESERVE OUT

6.10. PERSISTENT RESERVE OUT 5Fh

Bit

Byte

Operation Code (5Fh)

Reserved

SERVICE ACTION

TYPE

SCOPE

Reserved

(MSB)

Parameter List Length (18h)

(LSB)

Control

The PERSISTENT RESERVE OUT command is used to request service actions that reserve a logical unit or

element for the exclusive or shared used if a particular initiator. The command uses other service actions to

manage and remove such reservations. The command will be used in conjunction with the PERSISTENT

RESERVE IN command and will not be used with the RESERVE and RELEASE commands.

An initiator performing PERSISTENT RESERVE OUT service actions is identified by a reservation key provided by

the application client. An application client may use the PERSISTENT RESERVE IN command to identify which

initiators are holding a persistent reservation and use the PERSISTENT RESERVE OUT command to preempt

that reservation if required.

If a PERSISTENT RESERVE OUT command is attempted, but there are insufficient drive resources to complete

the operation, the drive will return a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST

and the additional sense data will be set to INSUFFICIENT REGISTRATION RESOURCES.

The PERSISTENT RESERVE OUT command contains fields that specify a persistent reservation service action,

the intended scope of the persistent reservation, and the restrictions caused by the persistent reservation. The

TYPE and SCOPE fields are defined in 6.9. If a SCOPE filed specifies a scope that is not implemented, the drive

will return a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and additional sense

data will be set to INVALID FIELD IN CDB.

Fields contained in the PERSISTENT RESERVE OUT parameter list specify the information required to perform a

particular persistent reservation service action.

The parameter list will be 24 bytes in length and the Parameter List Length field will contain 24(18h). If the

parameter list length is not 24, the drive will return a CHECK CONDITION status. The sense key will be set to

ILLGAL REQUEST and the additional sense data will be set to PARAMETER LIST LENGTH ERROR.

SERVICE ACTION: When processing the PERSISTENT RESERVE OUT service actions, the drive will increment

the generation value as specified in 6.9.

Table 6-62: PERSISTENT RESERVE OUT SERVICE ACTION codes

Code

00h

01h

Name

RESERVE

Description

Create a persistent reservation having a specified SCOPE and TYPE. The

SCOPE and TYPE of a persistent reservation are defined in 6.9

Releases the selected reservation for the requesting initiator.

Clears all reservation keys and all persistent reservations.

02h

03h

04h

05h

RELEASE

CLEAR

PREEMPT

Preempts persistent reservations from another initiator.

PREEMPT & Preempts persistent reservations from another initiator and aborts the task set

ABORT for the preempted initiator.

06h-1Fh Reserved

The parameter list required to perform the PERSISTENT RESERVE OUT command has the following format:

6-60

SONY AIT-5 drive SDX-1100V series Ver.1.0

PERSISTENT RESERVE OUT

6.Command Specification

Table 6-63: PERSISTENT RESERVE OUT parameter list

Bit

Byte

(MSB)

Reservation Key

(LSB)

SERVICE ACTION Reservation Key

SCOPE-SPECIFIC Address

(0 0 0 0)

(LSB)

APTPL

Reserved

Obsolete

Reservation Key: This field contains an 8-byte value provided by the application client to the drive to identify the

initiator that is the source of the PERSISTENT RESERVE OUT command. The drive will verify that the

Reservation Key field in a PERSISTENT RESERVE OUT command matches the registered reservation key for the

initiator from which the task was received, except for the REGISTER service action for an unregistered initiator

which will have a reservation key value of zero. If a PERSISTENT RESERVE OUT command specifies a

Reservation Key field other than the reservation key registered for the initiator, the drive will return a

RESERVATION CONFLICT status. The reservation key of the initiator will be verified to be correct regardless of

the SERVICE ACTION and SCOPE field values.

SERVICE ACTION Reservation Key: This field contains information needed for three service actions; the

SERVICE ACTION Reservation Key field contains the new reservation key to be registered. For the PREEMPT

and PREEMPT AND ABORT service actions, the SERVICE ACTION Reservation Key field contains the

reservation key of the persistent reservations that are being preempted. The SERVICE ACTION Reservation Key

field is ignored for all other service actions.

SCOPE-SPECIFIC Address: The drive do not support an Element reservation, then this field will be set to zero.

APTPL: The Activate Persistent Through Power Loss(APTPL) bit is not supported by the drive. If this bit is set a

CHECK CONDITION status is returned with an INVALID FIELD IN PARAMETER LIST.

The loss of power in the target will release the persistent reservation for all logical units and remove all reservation

keys.

Table 6-64 summarizes which field are set by the application client and interpreted by the drive for each service

action and scope value.

Table 6-64: PERSISTENT RESERVE OUT service actions and valid parameters

Service

Action

Allowed

Scope

Parameters

SERVICE ACTION

RESERVATION KEY

TYPE

SCOPE- SPECIFIC

Address

RESERVE

RELEASE

CLEAR

PREEMPT

& CLEAR

ignored

Ignored

Valid

Ignored

Valid

Ignored

Logical unit

Ignored

Logical unit

Ignored

Valid

Ignored

Valid

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-61

6.Command Specification

PREVENT ALLOW MEDIUM REMOVAL

6.11. PREVENT ALLOW MEDIUM REMOVAL 1Eh

Bit

Byte

Operation Code (1Eh)

Reserved

Prevent

Control

The PREVENT ALLOW MEDIUM REMOVAL command requests that the target enable or disable the removal of

the medium in the drive. This mechanism is independent of device reservations and the drive will not allow

medium removal if any initiator currently has medium removal prevented.

The prevention of medium removal will begin when any initiator issues a PREVENT ALLOW MEDIUM REMOVAL

command with a prevent bit of one (medium removal prevented). The prevention of medium removal for the logical

unit will terminate:

1. Upon a hard RESET condition.

2. Upon the receipt of a BUS DEVICE RESET message from any initiator

3. After all initiators that have medium removal prevented issue PREVENT ALLOW MEDIUM REMOVAL

commands with a prevent bit of ZERO, and the target has successfully performed a synchronize cache

operation.

While a prevention of medium removal condition is in effect the target will inhibit mechanisms that normally allow

removal of the medium by an operator.

Prevent: When this bit is set, the drive will not eject the tape following an UNLOAD. When it receives the

UNLOAD, the drive writes any buffered data to tape, rewind, then unthreads the tape from the mechanism. The

drive does not eject the tape. Setting this bit also completely disables the Eject button on the front panel (except

emergency eject). This situation remains until the Prevent bit is set to ZERO.

When this bit is set to ZERO, the drive ejects the cassette following completion of an UNLOAD. The Eject button is

also re-enabled.

6-62

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ

6.Command Specification

6.12. READ 08h

Bit

Byte

Operation Code (08h)

Reserved

SILI

Fixed

(LSB)

(MSB)

Transfer Length

Control

The READ command requests that the target transfer one or more data blocks to the initiator starting with the next

block on the drive.

Fixed: This bit specifies the meaning of the Transfer Length field and whether fixed-length or variable-length

blocks are to be transferred.

If the Fixed bit is set to ZERO, Variable Block mode is requested. A single block is transferred with the Transfer

Length specifying the maximum number of bytes the initiator has allocated for the returned data.

If the Fixed bit is set to one, the Transfer Length specifies the number of blocks to be transferred to the initiator.

This is valid only if the drive is currently operating in Fixed Block mode, in other words, when it has been instructed

to use fixed-length blocks with MODE SELECT command. If the Fixed bit is set and the drive is in Variable Block

mode, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key.

When the Transfer Length is ZERO, no data will be transferred and the current position on the logical unit will not

be changed.

If the READ command completes successfully in Fixed mode, the drive transfers (current Block Length) X

(Transfer Length) bytes of data to the Initiator. Upon termination of the READ command, the media will be logically

positioned after the last block transferred (EOM side).

SILI: A Suppress Incorrect Length Indicator bit of one indicates that the device will not return a CHECK

CONDITION status if the only error is that the Transfer Length is not equal to the actual Block Length recorded on

the media. Note, however, that if the SILI bit is one and the Fixed bit is ZERO, then the device will report a CHECK

CONDITION, if the requested Transfer Length is less than the actual block size recorded on the medium

(over-length condition) AND the device is configured to be in Fixed Block mode (i.e. the Block Length field in the

MODE SELECT/SENSE block descriptor is non-ZERO).

If the SILI bit is one and the Fixed bit is one, the drive will terminate the command with a CHECK CONDITION

status with the sense key set to ILLEGAL REQUEST and the additional sense code to ILLEGAL FIELD IN CDB.

If the SILI bit is not set and the actual Block Length is different from the specified transfer length, a CHECK

CONDITION status is returned and the Incorrect Length Indicator (ILI) bit and Valid bit will be set to one in the

Sense Data. The Sense Key field is set to NO SENSE and the Information field is to set the difference (residue)

between the requested Transfer Length and the actual Block Length, or in Fixed Block mode, the difference

(residue) between the requested number of blocks and the actual number of blocks read. No more than Transfer

Length bytes are transferred to the initiator and the tape is logically positioned after the last block transferred

(EOM side).

If the drive reads a Filemark, the drive will return a CHECK CONDITION status. the Filemark and Valid bits are set

and the Sense Key field is set to NO SENSE. The Information field contains the residue count. The Additional

Sense Code and Additional Sense Code Qualifier fields are set to Filemark Detected. Upon termination, the media

will be logically positioned after the Filemark (EOM side).

If, however, the drive encounters a Save-Setmark during a READ, nothing is reported unless the drive has been

configured through MODE SELECT to Report Save-Setmarks. The drive will ignore the Setmark and continue the

READ. If the Report Save-Setmarks configuration is enabled then the Filemark and Valid bits are set and the

Sense Key field is set to NO SENSE. The Information field contains the residue count and the Additional Sense

Code and Additional Sense Code Qualifier fields are set to Setmark Detected. The tape is logically positioned after

the Save-Setmark (EOM side).

If the drive detects EOD during the READ, the drive will return a CHECK CONDITION status and the Valid bit is

set and the Sense Key field is set to BLANK CHECK. The Information field contains the residue count. The

Additional Sense Code and Additional Sense Code Qualifier fields are set to EOD DETECTED. Upon termination,

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-63

6.Command Specification

READ

the media will be physically positioned before EOD and after the last block on tape.

The meaning of EOM is different for READ than for a WRITE type of command. EOM is only reported when the

physical EOM/P is encountered. The drive returns a CHECK CONDITION status. The EOM and Valid bits are set

and the Information field contains the residue count. If EOD is not written after the physical EOM/P, the Sense Key

is set to MEDIUM ERROR and the Additional Sense Code and Additional Sense Code Qualifier fields are set to

EOM/P Detected. If EOD is written, the Sense Key is set to BLANK CHECK and the Additional Sense Code and

Additional Sense Code Qualifier fields are set to EOD DETECTED. The tape is physically positioned at EOM/P.

For a Filemark, a (reported) Save-Setmark, EOD or EOM detected, if the Fixed bit is set, the Information field in

the REQUEST SENSE Data will be set to the difference (residue) between the requested Transfer Length and the

actual number of blocks read (not including the Filemark or Save-Setmark). If the Fixed bit is set to ZERO,

theIInformation field will be set the requested Transfer Length because Filemarks and Save-Setmarks are

considered to have a byte count of ZERO, (though this does not cause the ILI bit to be set).

The READ command may return the following sense keys on a CHECK CONDITION:

NO SENSE: If the actual Block Length is different from the specified Transfer Length and the SILI bit is ZERO, the

ILI (Incorrect Length Indicator) bit and Valid bit are set to one. The Information field in the Sense Data is set to the

difference (residue) between the requested Transfer Length and the actual Block Length, or in Fixed Block mode,

the difference (residue) between the requested number of blocks and the actual number of blocks read (not

including the incorrect length block). No more than Transfer Length bytes are transferred to the initiator and the

tape is logically positioned after the block (EOM side).

If the drive reads a Filemark during this command, it sets the Filemark bit in the REQUEST SENSE data. Upon

termination, the tape is logically positioned after the Filemark (EOM side). If, however, the drive encounters a

Save-Setmark during this command, nothing is reported unless the SDX-1100V has been configured through

MODE SELECT to Report Save Setmarks. If the Report Save Setmarks configuration is enabled then the Valid bit

and the Additional Sense Key flags are set in the REQUEST SENSE data to indicate that a Save-Setmark has

been encountered. The tape is also logically positioned after the Save-Setmark (EOM side).

For both a Filemark and a reported Save-Setmark, if the Fixed bit is one, the Information field in the REQUEST

SENSE data is set to the difference residue between the requested Transfer Length and the actual number of

blocks read (not including the Filemark or Save-Setmark).

If the Fixed bit is set to ZERO, the Information field is set to the difference (residue) between the requested

Transfer Length and the actual number of bytes read. Filemarks and Save-Setmarks are considered to have a

byte count of ZERO, though this does not cause the ILI bit to be set.

MEDIUM ERROR: The current block being read or a previously acknowledged WRITE type of operation

experienced an error probably related to the condition of the tape.

HARDWARE ERROR: Either a previously acknowledged WRITE type of operation had a major non-media related

failure or the read itself experienced the failure. The Valid bit is set, and the Information field contains the

appropriate residue. The meaning of EOM is different in a READ command from that in a WRITE type of

command. EOM is only reported on physical end-of-media. However, this condition is indistinguishable from other

fatal servo errors and so is reported as a HARDWARE ERROR.

BLANK CHECK: If EOD (End-of-Data) was encountered during a read, the sense key is BLANK CHECK, the

Valid bit is set and the Information field contains the residue count.

6-64

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ ATTRIBUTE

6.Command Specification

6.13. READ ATTRIBUTE 8Ch

The READ ATTRIBUTE command allows an application client to read attribute values from the Medium Auxiliary

memory (MAM).

Table 6-65: READ ATTRIBUTE command

Bit

Byte

Operation Code (8Ch)

Reserved

Service Action

Reserved

Volume Number(0)

Reserved

Partition Number(0)

(MSB)

First Attribute ID

Allocation Length

(LSB)

Reserved

Control

If the medium auxiliary memory is not accessible because there is no medium present, the READ ATTRIBUTE

command will be terminated with a CHECK CONDITION status. The sense key will be set to NOT READY and the

additional sense code will be set to MEDIUM NOT PRESENT.

If although medium is present, the Medium Auxiliary Memory is not accessible, the READ ATTRIBUTE command

will be terminated with a CHECK CONDITION status. The sense key will be set to MEDIUM ERROR and the

additional sense code will be set to AUXILIARY MEMORY NOT ACCESSIBLE.

The service actions defined for the READ ATTRIBUTE command are shown in Table 6-66.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-65

6.Command Specification

READ ATTRIBUTE

Table 6-66: READ ATTRIBUTE service action codes

Code

Name

Attribute Values

Description

Return attribute values.

00h

01h

Attribute List

Returns a list of available attribute identifiers, identifiers

that are not in the nonexistent or unsupported state.

02h

Volume List

Partition List

Return a list of known Volume Numbers.

Return a list of known Partition Numbers.

03h

04h

Reserved for SMC-2

Reserved

05h – 1Fh

The VOLUME NUMBER specifies a volume within the Medium Auxiliary Memory. The number of volumes of the

MAM will equal that of the attached multi-volume medium. If the medium only has a single volume, then its volume

number will be zero.

The PARTITION NUMBER specifies a partition within a volume. The number of partitions of the MAM will equal

that of the attached multi-partition medium. If the medium only has a single partition, then its partition number will

be zero.

If the combination of VOLUME NUMBER and PARTITION NUMBER is not valid, the command will be terminated

with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense

data will be set to INVALID FIELD IN CDB.

The FIRST ATTRIBUTE IDENTIFIER field specifies the attribute identifier of the first attribute to be returned. If the

specified attribute identifier is in the unsupported or nonexistent state, the READ ATTRIBUTE will be terminated

with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense

data will be set to INVALID FIELD IN CDB.

The ALLOCATION LENGTH field specifies how many bytes have been allocated of the first attribute to be

returned. If the length is not sufficient to contain the entire parameter list, the first portion of the list will be

returned. This will not be considered an error. If the remainder of the list is required, the application client will either

send a new READ ATRRIBUTE command with an ALLOCATION LENGTH field large enough to contain the entire

parameter list or use the FIRST ATTRIBUTE IDENTIFIER field to restrict the attributes returned.

The format of parameter data returned by the READ ATTRIBUTE command depends on the service action

specified.

6.13.1. ATTRIBUTE VALUES service action

The READ ATTRIBUTE command with ATTRIBUTE VALUES service action returns parameter data containing

the attributes specified by the PARTITION NUMBER, VOLUME NUMBER, and FIRST ATTRIBUTE INDENTIFIER

fields in the CDB. The returned parameter data will contain the requested attributes in ascending numerical order

by attribute identifier value and in the format shown in Table 6-67.

6-66

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ ATTRIBUTE

6.Command Specification

Table 6-67: READ ATTRIBUTE with ATTRIBUTE VALUES service action parameter list format

Bit

Byte

(MSB)

AVAILABLE DATA (n-3)

ATTRIBUTE (s)

(LSB)

ATTRIBUTE 0

ATTRIBUTE x

The AVAILABLE DATA field will contain the number of bytes of attribute information in the parameter list. If the

parameter list is truncated as a result of insufficient allocation length, the contents of the AVAILABLE DATA field

will not be altered.

6.13.2. ATTRIBUTE LIST service action

The READ ATTRIBUTE command with ATTRIBUTE LIST service action returns parameter data containing the

attribute identifiers for the attributes that are not in the unsupported state and not in the nonexistent state in the

specified partition and volume number. The contents of FIRST ATTRIBUTE IDENTIIER field in the CDB will be

ignored. The returned parameter data will contain the requested attribute identifiers in ascending numerical order

by attribute identifier value and the format shown in Table 6-68.

Table 6-68: READ ATTRIBUTE with ATTRIBUTE LIST service action parameters list format.

Bit

Byte

(MSB)

AVAILABLE DATA (n-3)

ATTRIBUTE IDENTIFIER

ATTRIBUTE IDENTIFIER 0

…

(LSB)

(MSB)

(LSB)

n-1

ATTRIBUTE IDENTIFIER x

(LSB)

The AVAILABLE DATA field will contain the number of bytes of attribute in the parameter list. If the parameter list is

truncated as a result of insufficient allocation length, the contents of the AVAILABLE DATA field will not be altered.

An ATTRIBUTE IDENTIFIER field is returned for each attribute that is not in the unsupported state and not in the

nonexistent state in specified partition and volume number.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-67

6.Command Specification

READ ATTRIBUTE

6.13.3. PARTITION LIST service action

The READ ATTRIBUTE command with PARTITION LIST service action returns parameter data (Table 6-69)

identifying the number of partitions supported in the specified volume number. The contents of PARTITION

NUMBER and FIRST ATTRIBUTE IDENTIFER fields in the CDB will be ignored.

Table 6-69: READ ATTRIBUTE with Volume LIST service action parameter list format.

Bit

Byte

(MSB)

AVAILABLE DATA (2)

(LSB)

FIRST PARTITION NUMBER (0)

NUMBER OF PARTITIONS AVAILABLE

The AVAIABLE DATA field will contain two.

The FIRST PARTITION NUMBER field indicates the first partition available on the specified volume number.

Partition numbering will start at zero.

The NUMBER OF PARTITIONS AVAILABLE indicates the number of Partitions available on the specified

VOLUME NUMBER.

6.13.4. VOLUME LIST service action

The READ ATTRIBUTE command with VOLUME LIST service action returns parameter data (Table 6-70)

identifying the supported number of volumes. The contents of VOLUME NUMBER, PARTITION NUMBER, and

FIRST ATTRIBUTE IDENTIFIER fields in the CDB will be ignored.

Table 6-70: READ ATTRIBUTE with VOLUME LIST service action parameter list format.

Bit

Byte

(MSB)

AVAILABLE DATA (2h)

(LSB)

FIRST VOLUME NUMBER (0)

NUMBER OF VOLUMES AVAILABLE

The AVAILABLE DATA field will contain two.

The FIRST VOLUME NUMBER field indicates the first volume available. Volume numbering will start at zero.

The NUMBER OF VOLUMES AVAILABLE field indicates the number of volumes available.

6-68

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ BLOCK LIMITS

6.Command Specification

6.14. READ BLOCK LIMITS 05h

Bit

Byte

Operation Code (05h)

Reserved

Control

The READ BLOCK LIMITS command requests that the drive return its limits for Block Length. The READ BLOCK

LIMITS data shown below will be sent during the DATA-IN phase of the command. The command does not reflect

the currently selected block size, only the available limits. MODE SENSE returns the current block size. 2 bytes is

the minimum and 8 Mbytes byte is the maximum block size which the unit can support.

Table 6-71: READ BLOCK LIMITS Data

Bit

Byte

Reserved

Granularity(02h)

(MSB)

Maximum Block Length Limit (80 00 00h)

Minimum Block Length Limit (00 04h)

(LSB)

GRANULARITY: This field indicates the block size granularity of the logical unit and the recording format. For this

logical unit, the value is 2, indicating a granularity of 2**GRANULARITY.

The maximum block length limit and minimum block length limit field values are shown in Table 6-71.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-69

6.Command Specification

READ BUFFER

6.15. READ BUFFER 3Ch

Bit

Bite

Operation Code (3Ch)

Buffer ID

Reserved

Mode

(MSB)

Buffer Offset

(LSB)

Allocation Length

Control

The READ BUFFER command is used in conjunction with WRITE BUFFER as a diagnostic function for testing the

data buffer and the SCSI bus integrity of the drive. A REWIND command will be sent to the drive after

WRITE/READ BUFFER diagnostic testing to return to normal operation.

The READ BUFFER command is executed only when there is no tape inserted in the drive or when the tape is

positioned at BOT except in Echo buffer mode. Otherwise, the drive will return a CHECK CONDITION status with

a Request Sense Key of ILLEGAL REQUEST.

Note:

Buffer Offset: The Buffer Offset field contains the byte offset within the specified buffer from which data will be

transferred. The initiator will conform to the offset boundary requirements returned in the READ BUFFER

descriptor. If the target is unable to accept the specified buffer offset, it will return a CHECK CONDITION status,

will set the Sense Key to ILLEGAL REQUEST, and set the ASC to ILLEGAL FIELD IN CDB.

Allocation Length: The Allocation Length specifies the maximum number of bytes that the initiator has allocated

for returned data. An Allocation Length of ZERO indicates that no data will be transferred. Any other value

indicates the maximum number of bytes that will be transferred. The drive terminates the DATA-IN phase when

Allocation Length bytes of data have been transferred or when all available data has been transferred to the

initiator, whichever is less. The Allocation Length must be greater than four (except in data only mode), else the

drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.

Mode: The drive supports the following values within this field. If any other value is set, the drive will terminate the

command with a CHECK CONDITION status and an ILLEGAL REQUEST sense key set.

Table 6-72: READ BUFFER Mode values

Mode

0000b

0010b

0011b

1010b

1011b

Description

Combined Header and Data

Data

Descriptor

Echo Buffer

Echo Buffer Descriptor

Combined Header and Data (0000b) - Combined Header and Data Mode-in this mode, the drive returns a

four-byte header followed by the data bytes. The drive terminates the DATA-IN phase when Allocation Length

bytes of header plus data have been transferred or when the header and all available data have been transferred

to the initiator, whichever is less. The four-byte READ BUFFER header is followed by data bytes from the drive's

data buffer.

6-70

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ BUFFER

6.Command Specification

Table 6-73: READ BUFFER Header

Bit

Byte

Reserved

Available Length

(MSB)

(LSB)

Available Length: This field specifies the total number of data bytes that are available in the target's data buffer.

This number is not reduced to reflect the Allocation Length nor is it reduced to reflect the actual number of bytes

written using the WRITE BUFFER command. Following the READ BUFFER header, the target will transfer data

from its data buffer.

Data Mode (0010b) - in this mode, the DATA-IN phase contains buffer data only. The Buffer ID field identifies a

specific buffer within the logical unit from which data will be transferred.

Buffer ID: The supported values are:

Table 6-74: Buffer ID values

Buffer ID

Description

Offset

- 0x01000000

Read Group Buffer

0x01000000 - 0x02000000

0x02000000 - 0x03000000

0x03000000 - 0x03700000

If an unsupported Buffer ID code is requested, the drive returns a CHECK CONDITION status with an ILLEGAL

REQUEST sense key set.

Descriptor Mode (0011b) - In this mode, a maximum of four bytes of READ BUFFER descriptor information is

returned. The drive will return the descriptor information for the buffer specified by the BUFFER ID field (see the

description of the buffer ID). If there is no buffer associated with the specified buffer ID, the drive will return all

zeros in the READ BUFFER descriptor. The BUFFER OFFSET field is reserved in this mode. The allocation length

will be set to four or greater. The drive will transfer the lesser of the allocation length or four bytes of READ

BUFFER descriptor.

Table 6-75: READ BUFFER Descriptor

Bit

Byte

Reserved

Buffer Capacity

(MSB)

(LSB)

Buffer Capacity: This field returns the size of the selected buffer in bytes.

Read Data from Echo Buffer (1011b) - Domain Validation is an important feature introduced in Ultra160 SCSI. It

provides a mechanism for SCSI devices to perform at maximum possible operational data transfer speed.

Domain validation performs a quick test to help ensure an initiator and target can actually transfer data at

negotiated speeds. Using Echo Buffer option, the initiator can do a more extensive data transfer validation test.

The initiator transmits the data using the WRITE BUFFER command with the echo buffer option and requests it

back using the READ BUFFER command with echo buffer option.

Note: Refer to INCITS TR-28-2002 regarding the Domain Validation.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-71

6.Command Specification

READ BUFFER

Echo Buffer (1010b) - In this mode the drive transfer data to the application client from the echo buffer. The echo

buffer will transfer the same data as when the WRITE BUFFER command with the mode field set to echo buffer

was issued. The BUFFER ID and BUFFER OFFSET fields are ignored in this mode. The READ BUFFER

command will return the same number of bytes of data as received in the prior echo buffer mode WRITE BUFFER

command from the same initiator.

The initiator may send a READ BUFFER command requesting the echo buffer descriptor prior to a WRITE

BUFFER command. If an echo buffer mode WRITE BUFFER command is successful then the initiator may send

multiple echo buffer mode READ BUFFER commands to read the echo buffer data multiple times.

Echo buffer descriptor (1011b) - In this mode, a maximum of four bytes of READ BUFFER descriptor information

is returned. The drive will return the descriptor information for the echo buffer. The BUFFER OFFSET field is

reserved in this mode. The allocation length will be set to four or greater.

Table 6-76: Echo Buffer descriptor

Bit

Byte

Reserved

EBOS (1)

Reserved

(MSB)

BUFFER CAPACITY

(LSB)

The BUFFER CAPACITY field will return the size of the echo buffer in bytes aligned to a four-byte boundary. The

maximum echo buffer size is 4096 bytes.

6-72

SONY AIT-5 drive SDX-1100V series Ver.1.0

READ POSITION

6.Command Specification

6.16. READ POSITION 34h

Bit

Byte

Operation Code (34h)

Reserved

TCLP

LONG

Reserved

Control

The READ POSITION command reports the current position of the logical unit. No medium movement will occur

as a result of the command.

TCLP: The Total Current Logical Position (TCLP) bit of ONE indicates the drive will return data specifying the

partition, file, and set number with the current logical position. The TCLP bit of ZERO indicates the drive will return

data specifying the first and last block location with the number of bytes and blocks in buffer.

LONG: The Long Format (LONG) bit of ONE indicates the drive will return 32 bytes of data. The LONG bit of

ZERO indicates the drive will return 20 bytes of data.

The LONG bit and the TCLP bit will be equal. If the LONG and TCLP bits are not equal, or if both the LONG and

the Block Address Type (BT) bits are ONE, the command is rejected with a CHECK CONDITION status and an

ILLEGAL REQUEST sense key set.

BT: The Block Address type (BT) bit controls the content of the short format data. The BT bit of one requests the

drive to return its current First Block Location will include data block only. The BT bit of ZERO requests the drive to

return the First Block Location are a SCSI Logical Block Address (data blocks, Filemarks and Save Setmarks are

counted.)

Table 6-77: READ POSITION Data Format, short form

Bit

Byte

BOP

EOP

Reserved

BPU

Reserved

Partition Number (0)

Reserved

(MSB)

First Block Location

(LSB)

Last Block Location

Reserved

Number of Blocks in Buffer

(MSB)

(LSB)

Number of Bytes in Buffer (00 00 00 00h)

BOP: A Beginning Of Partition (BOP) bit of one indicates that the logical unit is at the beginning-of-partition in the

current partition. A BOP bit of ZERO indicates that the current logical position is not at the beginning-of-partition.

EOP: An End Of Partition (EOP) bit of one indicates that the logical unit is positioned between Early-Warning and

end-of-partition in the current partition. An EOP bit of ZERO indicates that the current logical position is not

between Early-Warning and end-of-partition. Note that this bit is mutually exclusive with the BOP bit.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-73

6.Command Specification

READ POSITION

BPU: A Block Position Unknown (BPU) bit of one indicates that the First and Last Block Locations are not known

or cannot be obtained. A BPU bit of ZERO indicates that the First contains valid position information.

Partition Number: This field reports the current partition number for the current logical position. This drive does

not support multi partition.

First block location: This field indicates the Block Address associated with the current logical position. The value

will indicate the Block Address of the next data block to be transferred between the initiator and the target if a

READ or WRITE command is issued. See BT field for description of Logical Block Address. Note that the Logical

Block Address at BOT/P is 0.

Last block location: This field indicates the Block Address associated with the next block to be transferred from

the buffer to the medium. The value will indicate the Block Address of the next data block to be transferred

between the buffer and the medium. If the buffer does not contain a whole block of data or is empty, the value

reported for the last block location will be equal to the value reported for the first block location.

Number of Blocks in Buffer: This field indicates the number of data blocks in the buffer of the logical unit that

have not been written to the medium.

Number of Bytes in Buffer: This field is not supported and is always set to ZERO.

Table 6-78: READ POSITION Data Format, long form

Bit

Byte

BOP

EOP

Reserved

MPU

BPU

Reserved

(MSB)

Partition Number(0)

Block Number

File Number

(LSB)

Set Number

The BOP, EOP, and Partition Number are as defined in the READ POSITION data returned when the TCLP bit is

set to 0.

BPU: The Block Position Unknown (BPU) bit of ONE indicates the partition number or block number are not

known or accurate reporting is not currently available. The BPU bit of ZERO indicates the partition number and

block number fields contain valid position information.

MPU: The Mark Position Unknown (MPU) bit of ONE indicates the file number and set number are not known or

accurate reporting is not currently available. The MPU bit of ZERO indicates the File number and Set number

fields contain valid position information.

Block Number: Block Number reports the number of logical blocks between beginning-of-partition and current

logical position. Setmarks and Filemarks count as one logical block each.

File Number: File Number reports the number of Filemarks between beginning-of -partition and the current logical

position.

Set Number: Set Number reports the number of Setmarks between beginning –of-partition and the current logical

position.

6-74

SONY AIT-5 drive SDX-1100V series Ver.1.0

RECEIVE DIAGNOSTIC RESULTS

6.Command Specification

6.17. RECEIVE DIAGNOSTIC RESULTS 1Ch

Bit

Byte

Operation Code (1Ch)

Reserved

Allocation Length

(MSB)

(LSB)

Control

The RECEIVE DIAGNOSTIC RESULTS command requests error analysis data to be sent to the initiator after

completion of a SEND DIAGNOSTIC command.

Allocation Length: This field specifies the number of bytes that the initiator has allocated for returned diagnostic

data. An Allocation Length of ZERO means that no diagnostic data will be transferred. Any other value indicates

the maximum number of bytes that will be transferred.

The drive returns four bytes of header data as well as eight bytes of the diagnostic result. If the PF bit was not set,

the drive returns only the eight bytes of the diagnostic result.

The drive terminates the DATA-IN phase when Allocation Length bytes have been transferred or when all the

available diagnostic data (four or eight bytes depending on the PF bit) have been transferred to the initiator,

whichever, is less.

If the drive returns a CHECK CONDITION status with the HARDWARE ERROR Sense Key and an ASC of

DIAGNOSTIC FAILURE set on completion of a SEND DIAGNOSTIC, then the initiator will issue a RECEIVE

DIAGNOSTIC RESULTS command to receive the eight bytes of data indicating the actual failure and the Most

Suspect Unit (MSU).

If the initiator issued a SEND DIAGNOSTIC with the PF bit set and a page Code of ZERO, the drive returns which

pages it supports in the following format:

Table 6-79: RECEIVE DIAGNOSTICS supported pages

Bit

Byte

Page Code (00h)

Reserved

Page Length (00 02h)

(MSB)

(LSB)

Supported Page Code (00h)

Supported Page Code (81h)

If the initiator issued a SEND DIAGNOSTIC with the PF bit set and a Page Code of 81h, the drive returns the

following four bytes of page header, then five bytes of diagnostic results.

Table 6-80: RECEIVE DIAGNOSTICS page header

Bit

Byte

Page Code (81h)

Reserved

Page Length (00 05h)

(MSB)

(LSB)

The structure of the diagnostic results data is described below:

All error messages are of the same format. All fields within the error message may not be known or applicable.

A diagnostic result of all ZEROs is returned if the diagnostic completed successfully without error.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-75

6.Command Specification

RECEIVE DIAGNOSTIC RESULTS

Table 6-81: RECEIVE DIAGNOSTICS results data

Bit

Byte

Reset

Error

Time

Re-Sync

(0)

Reserved

Error Set

Error Code

Result A

Result B

Test Number

Reset error: This bit is set when an error occurs during power-on self-test.

Time Re-Sync: This bit indicates that the time stamp saved with the error log has no relation to that of the

previous entry. It is only set by the logging routine within the data buffer as an error is logged. This field is not

supported.

Error set: Various set of error codes exist. The definition of the error is dependent upon when set is taken from as

follows:

0 - Runtime errors

1 - Drive mechanism diagnostic errors

2 - Drive electronics diagnostic errors

Error code: Error codes for each error set are defined in the Diagnostics clause.

Result A and B: The content of these bytes depends on the test being run. See the Diagnostics clause.

Test number: This is the test number to which the message applies (if a test fails within a sequence, the individual

test number will be returned).

6-76

SONY AIT-5 drive SDX-1100V series Ver.1.0

RELEASE

6.Command Specification

6.18. RELEASE (6/10) 17h and 57h

RELEASE( 6) CDB format

Bit

Byte

Operation Code (17h)

Reserved

Obsolete

Reserved

Control

RELEASE (10) CDB format

Bit

Byte

Operation Code (57h)

3rdPty Reserved

Obsolete

Reserved

LongID

Obsolete

Third Party Device ID

Reserved

7-8

Parameter List Length

Control

This RELEASE command releases the drive if it was reserved by the requesting initiator using a RESERVE (6/10)

command and is still in the reserved state. See PERSISTENT RESERVE OUT/IN for an alternate reservation

system. This command cannot release a reservation generated by the PERSISTENT RESERVE OUT command.

Third party reservation management operations are only allowed using RESERVE (10) and RELEASE (10).

Logical unit reservation management operations are allowed using RESERVE (6/10) and RELEASE (6/10).

3rdPty: The Third-Party release option for the RELEASE command allows an initiator to release a logical unit that

was previously reserved using the Third-Party reservation option.

If the 3rdPty bit is ZERO, then the Third-Party release option is not requested. If the 3rdPty bit is one, then the

drive is released, if the reservation was made using the Third-Party reservation option by the initiator that is

requesting the release and for the same SCSI device as specified in the Third-Party Device ID field.

If the 3rdPty bit is ONE, the Logical Unit releases the specified logical unit, but only if the initiator, 3rdPty bit, and

Third Party Device ID fields (in CDB or in Parameter List) are identical when compared to the values used in the

RESERVE (10) command that established the reservation.

Long ID: If the Long ID bit is set to 1b and the Parameter List Length is 8, the parameter list contains the eight

bytes of the device ID of the Third Party Device ID.

If the 3rdPty bit is zero, the LONGID bit field is ignored.

Third Party Device ID: If the Third Party Device ID value that is connected with the reservation release is equal to

or smaller than 255 (FFh), the LongID field may be 0b and the Third Party Device ID value is sent in this field.

The contents of the Third Party Device ID field in the CDB is ignored when LongID = 1b;

Note: If the Third Party Device ID value is greater than 255 (FFh), LongID must be set to 1b.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-77

6.Command Specification

RELEASE

Parameter List Length: The contents of this field specify the length, in bytes, of the parameter list that will be

transferred from the initiator to the logical unit.

If the 3rdPty bit is ZERO, the PARAMETER LIST LENGTH field is ignored.

This field value must be 0000h when LongID is set to 0b. The field value must be eight when LongID is set to 1b.

If LongID is set to 0b and Parameter List Length is not ZERO, the command is terminated with a CHECK

CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The Additional Sense Code is set to

INVALID FIELD IN CDB.

If LongID is set to 1b and Parameter List Length is not eight, the command is terminated with a CHECK

CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The Additional Sense Code is set to

INVALID FIELD IN CDB.

When the LongID bit is set to 1b, the parameter list has the format shown in Table 6-82.

Table 6-82: RELEASE (10) LongID Only Parameter List — Data Format

Bit

Byte

(MSB)

0 - 7

Third Party Device ID

(LSB)

6-78

SONY AIT-5 drive SDX-1100V series Ver.1.0

REPORT DENSITY SUPPORT

6.Command Specification

6.19. REPORT DENSITY SUPPORT 44h

Bit

Byte

Operation Code (44h)

Reserved

MEDIA

Reserved

(MSB)

Allocation Length

(LSB)

Control

The REPORT DENSITY SUPPORT command provides information regarding the supported densities for the

logical unit be sent to application client.

MEDIA : The MEDIA bit of ZERO indicates that the drive will return density support data block for densities

supported by the logical unit for any supported media. The data returned by the drive will be static if the MEDIA

bit is ZERO. The MEDIA bit of ONE indicates that the drive will return density support data block for densities

supported by the mounted medium. If the MEDIA bit is ONE and the logical unit is not in the ready state, a CHECK

CONDITION status will be returned. The sense key will be set to NOT READY.

The Allocation Length field specifies the maximum number of bytes that the drive may return.

The REPORT DENSITY SUPPORT command returns the REPORT DENSITY SUPPORT header followed by one

DENSITY SUPPORT data block. The Density support data blocks will be in numerical ascending order of the

primary density code value for each block.

Table 6-83: REPORT DENSITY SUPPORT header

Bit

Byte

(MSB)

Available Density Support Length

(LSB)

Reserved (00h)

Available Density Support Length: This field specified the number of bytes in the following data that is available

to be transferred. The Available density support length does not include itself.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-79

6.Command Specification

REPORT DENSITY SUPPORT

Table 6-84: REPORT DENSITY SUPPORT data block descriptor

Bit

Byte

PRIMARY DENSITY CODE (32 h)

SECONDARY DENSITY CODE (30 h)

WRTOK (1) DUP (0) DEFLT (1)

Reserved (00h)

BITS PER MM

(MSB)

(LSB)

MEDIA WIDTH

TRACKS

CAPACITY

(MSB)

ASSIGNING ORGANIZATION (SONY)

DENSITY NAME (AIT-3)

DESCRIPTION (AdvlntelligentTape3)

PRIMARY DENSITY CODE (B3h)

SECONDARY DENSITY CODE (30 h)

WRTOK (1) DUP (0) DEFLT (1)

Reserved (00h)

BITS PER MM

(MSB)

(LSB)

MEDIA WIDTH

TRACKS

CAPACITY

103

104

105

106

107

108

109

111

112

113

114

115

(MSB)

ASSIGNING ORGANIZATION (SONY)

DENSITY NAME (AIT-3 Ex)

DESCRIPTION (AdvIntelligentTape3E)

PROMARY DENSITY CODE (33h)

SECONDARY DENSITY CODE (30h)

WRTOK (1) DUP (0) DEFLT (1)

Reserved (00h)

BITS PER MM

(MSB)

(LSB)

MEDIA WIDTH

TRACKS

6-80

SONY AIT-5 drive SDX-1100V series Ver.1.0

REPORT DENSITY SUPPORT

6.Command Specification

116

119

120

127

128

135

136

155

156

157

158

159

160

161

162

163

164

165

166

167

170

171

178

179

186

187

206

(MSB)

CAPACITY

(LSB)

ASSIGNING ORGANIZATION (SONY)

DENSITY NAME (AIT-4)

(LSB)

DESCRIPTION (AdvIntelligentTape4)

PROMARY DENSITY CODE (34h)

SECONDARY DENSITY CODE (30h)

WRTOK (1) DUP (0) DEFLT (1)

Reserved (00h)

BITS PER MM

(MSB)

(LSB)

MEDIA WIDTH

TRACKS

CAPACITY

(MSB)

ASSIGNING ORGANIZATION (SONY)

DENSITY NAME (AIT-5)

(LSB)

DESCRIPTION (AdvIntelligentTape5)

Density support data blocks will be returned by ascending primary density code values.

Primary Density Code: This field contains the value returned by a Mode Sense command for the density

described in the remainder of the density support block. The drive will accept a Mode Select command

containing this value, for appropriate media. The value of 00h will only be used for the default of the logical unit.

WRTOK: The WRTOK bit of ZERO indicates that logical unit support for this density does not include writing to the

media. The WRTOK bit of ONE indicates the logical unit is capable of writing this density to either the currently

mounted medium (Media bit in CDB set to one) or for some media (Media bit in CDB set to Zero).

DUP: The DUP bit of ZERO indicates this primary density code has exactly support data block. The DUP bit of

ONE indicates this primary density code is specified in more than one density support block.

DEFLT: The DEFLT bit of ZERO indicates this density is not the default density of the drive. The DEFLT of ONE

indicates this density is the default density of the logical unit.

Bits Per MM: This field indicates the number of bits per millimeter per track as recorded on the medium. The

value in this field will be rounded up if the fractional value of the actual value is greater than or equal to 0.5. A

value of 00h indicates that the number of bits per millimeter does not apply to this logical unit. Direct of this value

between different suppliers (possible products) is discouraged since the definition of bits may vary.

Media Width: This field indicates the width of the medium supported by this density. This field has units of tenths

of millimeters. The value in this field is equal to 0.5. The Media Width field may vary for a given density depending

on the mounted medium. A value of 00h indicates that the width of the medium does not apply to this logical unit.

Tracks: This field indicates the number of data tracks supported on medium by this density.

Capacity: If MEDIA bit of CDB is set to 0, this field will indicate the approximate capacity of the longest supported

medium assuming recording in this density If the Media bit of CDB is set to 0, set to 0m this field will indicate the

approximate capacity of the current medium assuming recording in this density. If the approximate capacity of the

current medium cannot be determined for the mounted medium, the longest supported medium capacity will be

used. The data and block size assumes that compression is disabled. The capacity also assumes that the media is

in “good” condition, and that “normal” data and block size are used. This value is in units of megabytes (1000 X

1000 bytes). The logical unit does not guarantee that this space is actually available in all cases.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-81

6.Command Specification

REPORT DEVICE IDENTIFIER

6.20. REPORT DEVICE IDENTIFIER A3h

Bit

Byte

Operation Code (A3h)

Service Action (05h)

Reserved

2 - 5

6 - 9

Reserved

Allocation Length

Reserved

Control

The REPORT DEVICE IDENTIFIER command requests that the logical unit send device identification information

to the initiator.

Service Action: Must be 05h.

For any value other than 05h, the command is terminated with a CHECK CONDITION status, the sense key is set

to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.

Allocation Length: If the Allocation Length is not sufficient to allow all of the parameter data to be returned, the

first portion of the data is returned (i.e., truncated). This is not considered an error.

Note: The actual length of the parameter data is calculated using the Identifier Length field in the parameter data

plus 4.

Table 6-85: REPORT DEVICE IDENTIFIER - Data Format

Bit

Byte

0 - 3

4 - n

Identifier Length (n – 3)

Identifier

Identifier Length: Specifies the length in bytes of the Identifier field. If the Allocation Length field in the CDB is too

small to transfer the header and all of the identifiers, the length is not adjusted to reflect the truncation.

The identifier length is initially equal to zero, and is changed only by a successful SET DEVICE IDENTIFIER

command.

Identifier: The value reported is the last value provided by a successful SET DEVICE IDENTIFIER command.

The value of the identifier is changed only by a successful SET DEVICE IDENTIFIER command.

The identifier value persists through resets, power cycles, media write operations, and media replacement.

If Identifier Length = 00000000h, this field is not present or has zero length.

6-82

SONY AIT-5 drive SDX-1100V series Ver.1.0

REPORT LUNS

6.Command Specification

6.21. REPORT LUNS A0h

Bit

Byte

Operation Code (A0h)

Reserved

(MSB)

Allocation Length

(LSB)

Reserved

Control

The REPORT LUNS command requests that the peripheral device logical unit numbers of known logical units in

the target be sent to the application client. The REPORT LUNS command will return information about only those

logical units to which commands may be sent.

The REPORT LUNS command will not be affected by reservations or persistent reservations.

The Allocation length will be at least 16 bytes. If the Allocation length is less than 16 bytes, the drive will return a

CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and the additional sense data will

be set to INVALID FIELD IN CDB.

If the Allocation length is not sufficient to contain the logical unit number values for all configured logical units, the

drive will report as many logical unit number values as fit in the specified Allocation length. This will not be

considered an error.

The drive will report the logical unit numbers of configured drive using the format shown in Table 6-86.

Table 6-86: LUN reporting parameter list format

Bit

Byte

(MSB)

LUN List Length (00 00 00 08h)

Reserved (0)

(LSB)

LUN List

LUN

(MSB)

(LSB)

The LUN list length will contain the length in bytes of the LUN list that is available to be transferred. The LUN list

length is the number of logical unit numbers reported multiplied by eight. If the allocation length in the CDB is too

small to transfer information about all configured drive, the LUN list length value will not be adjusted to reflect the

truncation.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-83

6.Command Specification

REQUEST SENSE

6.22. REQUEST SENSE 03h

Bit

Byte

Operation Code (03h)

Reserved

Allocation Length (1Ch)

Control

The REQUEST SENSE command requests that the target transfer Sense Data to the initiator.

The Sense Data will be valid for a CHECK CONDITION status returned on the previous command. The Sense

Data will be preserved by the target until retrieved by the REQUEST SENSE command or until the receipt of any

other command from the same initiator. The 28 bytes of Sense Data are cleared upon receipt of any subsequent

command to the logical unit, including another REQUEST SENSE.

If the drive receives an unsolicited REQUEST SENSE, then it returns Sense Data with the Filemark, EOM and the

appropriate values in the ASC/ ASCQ fields. These fields are only set if the drive is currently logically positioned at

BOM/P, EOM , EOD, or after a Filemark or after a Setmark. The initiator is required to know what the current

direction of tape motion is and, therefore to know whether the logical position at a Filemark or Setmark is either on

the BOT or EOT side of that mark.

The positional information provided reflects the logical position of the drive. The drive returns information based on

the data still in its buffer as well as the data on tape.

The REQUEST SENSE command does not cause the drive to flush its buffered data to tape. Therefore, if the

initiator requires the exact physical positioning of the media, it will precede the REQUEST SENSE with a WRITE

FILEMARKS command with the number of Filemarks field = 0 and with the immediate bit set to ZERO. This

command will force the drive to flush any currently buffered data to tape. A subsequent REQUEST SENSE will

return the initiator the actual physical (and logical) position of the drive.

Note: The drive will only maintain valid positional information on normal operating commands.

Allocation Length: The Allocation Length specifies the maximum number of sense bytes to be returned. The

drive terminates the transfer when the Allocation Length bytes have been transferred or when all available Sense

Data has been transferred to the initiator, whichever is less.

The returned sense information has the following format:

6-84

SONY AIT-5 drive SDX-1100V series Ver.1.0

REQUEST SENSE

6.Command Specification

Table 6-87: Error Codes 70h and 71h Sense Data Format

Bit

Byte

Valid

Error Code (70h or 71h)

Segment Number

Reserved

Filemark

(MSB)

EOM

ILI

Sense Key

Information

(LSB)

Additional Sense Length (14h)

Command-Specific Information

(MSB)

SKSV

Additional Sense Code (ASC)

Additional Sense Code Qualifier (ASCQ)

Field Replaceable Unit Code

Sense-Key Specific

Reserved

Read/Write Data Error Counter

(MSB)

(LSB)

Remaining Tape

(LSB)

MEW

Reserved

CLN

Reserved

Valid: A valid bit of one indicates that the Information field holds residual data.

Error Code: A value of 70h indicates a current error, i.e. the report is associated with the most recently received

command. A value of 71h indicates a deferred error, i.e. the report is associated with a previous command and is

not as a result of the current command. No other values will be returned.

Segment Number: This field contains the number of the current segment descriptor if the REQUEST SENSE

command is in response to a COPY command. Otherwise this byte is ZERO. This field is not supported and is

always set to ZERO.

Filemark: This bit indicates that the current command has read a Filemark or a Setmark. Reporting of Setmarks is

optional and indicated by the RSmk bit in the MODE SENSE/SELECT Device Configuration Parameter page.

EOM: An End-Of-Medium (EOM) bit of ONE indicates that an End-Of-Medium condition exists. This bit of ONE

indicates that the drive is at or past the Logical Early-Warning Point if the direction was forward, or that the

command could not be completed because Beginning-Of-Partition was encountered if the direction was reverse.

The drive will also set the Sense Key to NO SENSE and the Additional Sense Code Qualifier to either 04h for

Beginning of Partition or 02h for End of Partition.

For WRITE type operations, the drive will return a CHECK CONDITION on any operation which occurs following

detection of the Early-Warning End-of-Partition marker. The EOM and Additional Sense Code fields will be set.

For READ type operations, the drive will not return a CHECK CONDITION until the drive encounters the physical

End-of-Partition.

Note that at PHYSICAL End-of-Partition, a WRITE FILEMARK command will cause the command to terminate

with a CHECK CONDITION and a sense key of VOLUME OVERFLOW.

ILI: This is the Incorrect Length Indicator bit, which indicates that the requested logical block length did not match

the logical block length of the data on the medium. Only READ may cause this bit to be set.

Information: This field contains the differences (residue) of the requested length minus the actual length in

either bytes, blocks, Filemarks or Setmarks as determined by the command. (Negative values are indicated by

two’s complement notation.) These bytes will be valid for all READ, WRITE and SPACE commands for which a

CHECK CONDITION status has been generated. These bytes will be ZERO for MODE SELECT/SENSE,

INQUIRY, READ BLOCK LIMITS and TEST UNIT READY commands.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-85

6.Command Specification

REQUEST SENSE

Additional Sense Length: This field specifies the number of additional sense bytes that are to follow. If the

Allocation Length of the CDB is too small to transfer all of the additional sense bytes, the Additional Sense Length

is not adjusted to reflect the truncation.

Command Specific Information: Command Specific Information field is unused, and will be ZERO.

Additional Sense Code and Additional Sense Code Qualifier: These fields provide additional information about

what caused the CHECK CONDITION status. They are used extensively by the drive. The information is

presented in the Sense Key Description table on the following pages.

Field Replaceable Unit Code: This field is used to define a device specific mechanism or part that has failed. A

value of ZERO indicates that no specific mechanism or unit has been identified to have failed. This field is always

set to ZERO.

Sense-Key specific: This field will contain data that further information related to the CHECK CONDITION.

If the Sense Key field is set to ILLEGAL REQUEST and the SKSV bit is set to one, the Sense-Key specific fields

will be as shown below. The fields point to illegal parameters sent by the initiator.

Table 6-88: Field Pointer Bytes

Bit

Byte

SKSV(1)

(MSB)

C/D

Reserved Reserved

BPV

Bit Pointer

Field Pointer

(LSB)

C/D: When this bit is set, it indicates that the illegal parameter is in the CDB. A C/D of ZERO indicates that the

illegal parameter is in the Parameter List sent by the initiator during the DATA OUT phase.

BPV: When the Bit Pointer Valid bit is set, indicates that the Bit Pointer field specifies which bit of the byte

designated by the Field Pointer is in error. When a multiple-bit field is in error, the Bit Pointer field points to the

most significant (left most) bit of the field.

Field Pointer: This field indicates which byte of the CDB or of the Parameter List data was in error. Bytes are

numbered from ZERO. When a multiple byte field is in error, the pointer points to the most significant byte of the

field.

If the SKSV bit is ZERO, then the Field Pointer Bytes take the Sony Unique Format as shown below:

Table 6-89: Error Code and Status Bytes

Bit

Byte

SKSV(0)

Reserved

Runtime Error Code

Status Byte

Runtime Error Code: This field is part of the internal protocol and contains the Runtime (error set 0) Error code.

These internal error codes are also listed below, showing to which Sense, ASC and ASCQ fields they are mapped.

Status Byte: This field is not supported.

Read/Write Data Error Counter: After a read operation, this field returns Total error collected fields of Read Error

Counters Pages. After a write operation, this field returns Total error collected fields of Write Error Counters Pages.

This field is valid only after a READ or a WRITE command. It is direct mapping of these log page data and is

cleared/reset in the same way as those log page data.

Remaining Tape: The capacity remaining of the tape in 1024 byte blocks is returned. This means the area from

the current logical position to EOP.

6-86

SONY AIT-5 drive SDX-1100V series Ver.1.0

REQUEST SENSE

6.Command Specification

CLN: When this bit is set, it indicates drive request cleaning .

MEW: When this bit is set, it indicates Media Warning.

A description of the different Sense Keys (Byte 2), Additional Sense Codes (Byte 12), and the Additional Sense

Code Qualifiers (Byte 13) supported by the SDX-1100V are listed in a table beginning on the following page.

The following Table shows the REQUEST Sense Keys and the Additional Sense Key (Byte 12) and the Additional

Sense Key Qualifier (Byte 13) supported by the SDX-1100V:

Table 6-90: Sense Key Descriptions

Sense

Key

Bytes

Description

00h

NO SENSE: Indicates that there is no specific sense key information to be reported

for the designated logical unit. This would be the case for a successful command or a

command that received a CHECK CONDITION or a COMMAND TERMINATED

status because one of the Filemark, EOM, or ILI bits is set to one. For Filemark or

Setmark detected the drive will be positioned on the EOM side of the mark if the drive

direction was forward and on the BOM side of the mark if the direction was reverse.

00 NO ADDITIONAL SENSE INFORMATION

01 FILEMARK DETECTED

02 END-OF-PARTITION/MEDIUM DETECTED

03 SETMARK DETECTED

04 BEGINNING-OF-PARTITION/MEDIUM DETECTED

05 END-OF-DATA DETECTED

01h

02h

RECOVERED ERROR.

5D 00

FAILURE PREDICTION THRESHOLD EXCEEDED

NOT READY. Indicates that the addressed logical unit cannot be accessed. Operator

intervention may be required to correct this condition. Typically this indicates that

there is no tape loaded. This status is also returned if the drive is currently rewinding

following REWIND with Immediate bit set and another command is received (except

for INQUIRY and READ BLOCK LIMITS which return GOOD status).

04 00

LOGICAL UNIT NOT READY - Media is present within the drive.

This status is returned to any tape motion command following UNLOAD with

Immediate bit set or if the Eject button has been pressed by the operator. Also can be

caused by the command sequence, PREVENT ALLOW MEDIA REMOVAL with

Prevent bit set followed by UNLOAD. Tape motion commands such as READ,

WRITE or SPACE are not allowed but Diagnostics which do not access the tape are

permitted.

01 LOGICAL UNIT IS IN PROCESS OF BECOMING READY - This status is returned

following a LOAD command with the IMMED bit set for any tape motion command

before the tape is loaded. Also during the auto load following a tape insertion.

03 CLEANING CARTRIDGE INSTALLED

00 MEDIUM NOT PRESENT - This status is returned for all tape motion commands

when there is no media within the tape.

04 MEDIUM NOT PRESENT MAM ACCESSIBLE

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-87

6.Command Specification

REQUEST SENSE

03h

MEDIUM ERROR. Indicates that the current command or a previously acknowledged

write-type operation terminated with a non-recovered error condition that was

probably caused by a flaw in the medium, an error in the recorded data or the

cleanliness of the head. This sense key may also be returned if the drive is unable to

distinguish between a flaw in the medium and a specific hardware failure (sense key

4h). This condition is also marked by the Valid bit being set, indicating that the

Information field contains residue information.

END-OF-PARTITION / MEDIUM DETECTED

00 WRITE ERROR – The Read-After-Write Retry limit was exceeded during Write.

Probably caused by a flaw in the media.

UNRECOVERED READ ERROR - C1, C2 & C3 Error Correction could not correct a

Read Error. Probably caused by a flaw in the media.

INCOMPLETE BLOCK READ - The drive could not read the AITFormat Group

containing the requested block. Could be caused by head clogging or media

damage.

END-OF-DATA NOT FOUND – While Reading an AIT format tape, the drive

encountered blank (unformatted) media during a Read operation. This error could be

caused by serious head clogging.

POSITIONING ERROR DETECTED BY READ OF MEDIUM - Cannot find

destination Group during Space operation.

APPEND POSITION ERROR

INCOMPATIBLE MEDIUM INSTALLED - Format violation.

Possible that the Sub-Area cannot be read.

CANNOT READ MEDIUM, INCOMPATIBLE FORMAT - Format violation.

CLEANING FAILURE

MEDIUM FORMAT CORRUPTED - AIT format Group GIT, BAT, or Sub-Codes do not

match or are improper.

REPOSITION ERROR - Position lost during Read, Write, Space, Locate, Seek or

Select Partition operation.

WRITE APPEND ERROR - Cannot find the last frame of the Group and therefore,

cannot append.

CARTRIDGE FAULT

NN DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN - ALGORITHM ID

<= 255

MIC Checksum Error

6-88

SONY AIT-5 drive SDX-1100V series Ver.1.0

REQUEST SENSE

6.Command Specification

04h

HARDWARE ERROR. Indicates that the drive detected a non-recoverable hardware

failure not related to the tape (for example, controller failure, device failure, parity

error, etc).While performing the command or during a self-test. If a previously

acknowledged write-type operation was the cause, the valid bit is set. The error code

in sense byte 16 will indicate the specific problem. Refer to the error code table in the

diagnostics clause for more information.

00 PERIPHERAL DEVICE WRITE FAULT - Drive electronics did not report successful

completion to a Write operation.

01 MICROCODE HAS BEEN CHANGED – Illegal firmware code is reprogrammed.

00 INTERNAL TARGET FAILURE - Any unexpected internal error

Conditions Indicating a Non-recoverable hardware failure. Refer to the field

replaceable unit code field (sense byte 14) to determine which part of the drive is

failing. Initiator will issue SEND DIAGNOSTICS with the self-test bit set to thoroughly

test the drive. This sense information could also be returned after a send diagnostics

command ends with a CHECK CONDITION status. initiator will issue RECEIVE

DIAGNOSTICS RESULTS for more details. Possible causes: buffer

overrun/under-run, format violation, mechanical status time-out, internal data parity

error, byte count mismatch, incorrect micro processor operation, unexpected SCSI

protocol chip interrupt.

06 MIC Read Error

05h

ILLEGAL REQUEST. Indicates that there was an illegal parameter in the CDB or in

the additional parameters supplied as data for some commands. If the target detects

an invalid parameter in the CDB, then it will terminate the command without altering

the medium. If the target detects an invalid parameter in the additional parameters

supplied as data, then the target may have already altered the medium. This sense

key may also indicate that an invalid IDENTIFY message was received.

00 PARAMETER LIST LENGTH ERROR - Indicates that the Parameter Length error in

the CDB. Either the value does not fall on a Header, Page or Block descriptor

boundary or the Parameter List Length is unexpectedly large.

00 INVALID COMMAND OPERATION CODE - Invalid or Unsupported command.

00 INVALID FIELD IN CDB – Bits are set in one or more fields are not supported or are

Reserved. Refer to the Field Pointer (Bytes 15-17) to identify the illegal bit or field.

00 INVALID FIELD IN PARAMETER LIST - Test Number,

Configuration Number Header, or Field in the Parameter List was invalid or selected

Diagnostic test is not initiator assessable.

01 PARAMETER NOT SUPPORTED - Unsupported page requested. Refer to the Field

Pointer (Bytes 15-17) to identify the illegal bit or field.

02 PARAMETER VALUE INVALID

00 COMMAND SEQUENCE ERROR - Write Buffer command when tape is inserted and

not at BOT.

00 SAVING PARAMETERS NOT SUPPORTED

00 INVALID BITS IN IDENTIFY MESSAGE - Identify message was not 80h or C0h.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-89

6.Command Specification

REQUEST SENSE

05h

04 INSUFFICIENT REGISTRATION RESOURCES (attempt to register more than 1 key)

02 No MIC Detected

04 MIC out of Memory

05 No Data Body Detected in the MIC

0C MIC format type is undefined

0D MIC capacity field indicates illegal value.

80 Partition Count exceeded

89 User Volume Note Size Mismatch

8A User Partition Note Size Mismatch

97 Current Partition is not the last partition

98 Can not append the new partition, because remaining capacity too short.

99 Can not delete partition

9B Can not format tape because real tape capacity is exceeded

9C Can not append new partitions because the MIC is out of memory

06h

UNIT ATTENTION. Indicates that the removable medium may have been changed or

the target has been reset.

00 NOT READY TO READY TRANSITION, MEDIUM MAY HAVE CHANGED

00 POWER ON, RESET, OR BUS DEVICE RESET OCCURRED

80 Drive Failed Power-on test or Diagnostic - (SONY Unique)

01 MODE PARAMETERS CHANGED - Issued to all other initiators after one initiator

changes any Mode Parameter.

03 RESERVATION PREEMPTED (after removing reservation by the CLEAR action)

REGISTRATION PREEMPTED (after removing reservation by the PREEMPT or

PREEMPT ABORT action)

11 MEDIUM AUXILIARY MEMORY ACCESIBLE

87 Broken MIC is loaded in AIT mode

07h

08h

09h

DATA PROTECT. Indicates that a WRITE type of operation was attempted on a write

protected tape, write operation is not performed.

00 WRITE PROTECTED – Cassette is Write Protected.

0B BROKEN MIC – Cassette is Write Protected

BLANK CHECK. Indicates the drive encountered blank medium or end-of-data

indication while reading.

00 NO ADDITIONAL SENSE INFORMATION - Blank Tape was encountered at BOT

05 END-OF-DATA DETECTED - During READ or SPACE command.

Vendor Specific

08 MIC is not formatted yet

0B MIC is broken

83 MIC exists but is not used

6-90

SONY AIT-5 drive SDX-1100V series Ver.1.0

REQUEST SENSE

6.Command Specification

0Bh

ABORTED COMMAND

00 MESSAGE ERROR – Unexpected Message phase.

00 SELECT OR RESELECT FAILURE - SCSI Selection/ Re-selection error.

00 SCSI PARITY ERROR - SCSI Parity Error detected and drive proceeded to Status

phase.

00 INITIATOR DETECTED ERROR MESSAGE RECEIVED.

00 COMMAND PHASE ERROR

00 DATA PHASE ERROR – Possible DMA error

00 OVERLAPPED COMMANDS ATTEMPTED - Initiator issued a new command to the

drive while a previous command was being executed.

0Dh

VOLUME OVERFLOW

02 END-OF-PARTITION/MEDIUM DETECTED - During Write type operation.

MISCOMPARE. Not supported by the SDX-1100V

RESERVED. Not used by SDX-1100V

0Eh

0Fh

The REQUEST SENSE command returns the CHECK CONDITION status only to report fatal errors for the

REQUEST SENSE command.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-91

6.Command Specification

REQUEST SENSE

Table 6-91：Runtime Error Code

78h

7Ch

7Dh

80h

81h

82h

83h

84h

85h

87h

8Eh

90h

91h

92h

94h

A0h

A3h

A4h

A5h

B0h

B2h

B3h

B4h

B8h

BCh

BDh

BEh

BFh

C0h

C1h

C2h

CBh

DMA Parity Error FSC

DRAM Parity Error Interface Buffer Controller

DRAM Parity Error Tape Formatter Controller

LOADING TIME-OUT

FRONT LOADING TIME-OUT

CAPSTAN TIME-OUT

00h

01h

02h

04h

06h

07h

08h

0Eh

10h

11h

12h

13h

14h

20h

22h

24h

28h

29h

2Ah

2Ch

2Dh

2Eh

30h

33h

35h

36h

38h

39h

3Fh

43h

44h

45h

48h

49h

4Ch

4Fh

51h

52h

53h

54h

55h

56h

57h

58h

59h

5Fh

60h

61h

62h

63h

70h

75h

NO ERROR

NO TAPE

OFF-LINE WITH TAPE

ILLEGAL COMMAND

WRITE OPERATION INHIBIT

WRITE PROTECTED

PARTITION SIZE ERROR

CLEANING EOM ENCOUNTERED

INVALID TEST NUMBER

DRUM TIME-OUT

REEL TIME-OUT

ILLEGAL ENCODER PATTERN

TENSION REGULATOR NG

SNAPPED TAPE

INVALID PARAMETER

INVALID TEST WITH CARTRIDGE

TEST NOT ACCESSIBLE BY HOST

TEST NOT ACCESSIBLE SELFTEST

COMMAND ABORTED

FEW S REEL FG

FEW T REEL FG

HIGH TEMPERATURE

TAPE SLACK OCCURED

DRUM SPEED OUT OF RANGE

DRUM PHASE UNLOCKED

DRUM NO FG

BLANK AT BOT

BULK ERASE DETECTED

SYSTEM AREA READ CONDITION ERROR

SYSTEM AREA READ TIMEOUT

SYSTEM AREA READ OVER POSITION

SYSTEM AREA WRITE CONDITION ERROR

SYSTEM AREA APPEND TIMEOUT

SYSTEM AREA APPEND OVER POSITION

READ EOD ENCOUNTERED

READ DETECT HEAD CLOG

READ ECC UNCORRECTABLE

READ APPROACH TIMEOUT

READ OVER POSITION

DRUM NO PG

CAPSTAN SPEED OUT OF RANGE SHORT

CAPSTAN SPEED OUT OF RANGE LONG

CAPSTAN SPEED SERVO ERROR

CAPSTAN CALIBRATION ERROR

MC MISC ERROR

MC BOM DETECTED ERROR

MC EOM DETECTED ERROR

MC INITIALIZATION ERROR

MC COMMAND REJECT ERROR

UNKNOWN BAT ENTRY

Illegal Format

READ FORMAT ERROR

READ TIMEOUT

SEARCH APPROACH POSITION ERROR

SEARCH APPROACH TIMEOUT

SEARCH ECC UNCORRECTABLE

SEARCH OVER POSITION

SEARCH FORMAT ERROR

SEARCH NO USER DATA

SEARCH TIMEOUT

WRITE TOO MANY REWRITE

WRITE CONDITION ERROR

WRITE DETECT HEAD CLOG

WRITE EOM ENCOUNTERED

WRITE APPEND TIME OUT

WRITE APPROACH TIME OUT

WRITE APPEND OVER POSITION

WRITE APPEND WSID NG

WRITE APPEND ATF UNLOCK

WRITE TIMEOUT

FORMAT DISCONTINUITY

TARGET RECORD NOT FOUND

CCh UNEXPECTED EOR

CEh

E0h

E4h

E5h

E6h

E7h

E9h

F0h

F1h

F2h

F3h

F4h

F5h

F6h

F7h

F8h

FAh

FCh

FDh

DC ERROR

DMAABORT ERROR

FMK ENCOUNTERED

SMK ENCOUNTERED

BOP ENCOUNTERED

EOD ENCOUNTERED AT BOT

DMA HARDWARE ERROR

MIC BROKEN ERROR

MIC VERIFY ERROR

MIC LOGICAL ERROR

MIC CHECKSUM ERROR

MIC NOT SUPPORTED

CLEANING CONDITION ERROR

RFD ERROR

APPEND POSITION ERROR

ILLEGAL TAPE

UNDEFINED TAPE

DT GCAL ERROR

DT WHEADCAL ERROR

DT RHEADCAL ERROR

DT CLIP ERROR

EEPROM NG

DIAGNOSTIC FAILURE

FIRMWARE VERIFICATION FAILURE

FIRMWARE TAPE FAILURE

6-92

SONY AIT-5 drive SDX-1100V series Ver.1.0

RESERVE

6.Command Specification

6.23. RESERVE (6/10) 16h and 56h

Table 6-92: RESERVE (6) CDB format

Bit

Byte

Operation Code (16h)

Reserved

Obsolete

Reserved

Control

Table 6-93: RESERVE (10) CDB format

Bit

Byte

Operation Code (56h)

3rdPty Reserved

Obsolete

Reserved

Long ID Reserved

Third Party Device ID

Reserved

7-8

Parameter List Length

Control

The RESERVE (6/10) command reserves the logical unit for exclusive use by the requesting initiator or one other

specified SCSI device (third party). The RELEASE (6/10) command is used to release the logical unit if it was

reserved by the requesting initiator using a RESERVE (6/10) command and is still in the reserved state.

See PERSISTENT RESERVE OUT/IN for an alternate reservation system. The PERSISTENT RESERVE OUT

command cannot be used to release a reservation generated by the RESERVE (6/10) commands.

Third party reservation management operations are only allowed using RESERVE (10) and RELEASE (10).

Logical unit reservation management operations are allowed using RESERVE (6/10) and RELEASE (6/10).

The reservation remains in effect until one of the following conditions is met:

- The initiator that made the reservation sends another RESERVE command.

- The logical unit is released by a RELEASE (6/10) command from the same initiator.

- The logical unit in a third party reservation is released by a RELEASE (10) command from the same initiator.

- A TARGET RESET or LOGICAL UNIT RESET Task Management function is received from any initiator.

The occurrence of the last two conditions is indicated by the logical unit returning a CHECK CONDITION status

with a sense key of UNIT ATTENTION on the next command following the condition.

It is not an error for an initiator to issue a new RESERVE (6/10) command to the logical unit when the logical unit

is currently reserved by that same initiator. If the logical unit has previously been reserved by another initiator, then

the logical unit terminates the command with RESERVATION CONFLICT status.

If, after honoring the reservation, any other initiator then attempts to perform any command except INQUIRY,

REQUEST SENSE, REPORT LUNS or RELEASE, then the command is rejected with a RESERVATION

CONFLICT status. A RELEASE command issued by another initiator will be ignored by that reserved logical unit.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-93

6.Command Specification

RESERVE

3rdPty: Third Party Release allows an initiator to reserve a logical unit for third party operations.

If the value in this field is 0b, a logical unit reserve is requested.

If the 3rdPty bit is set to 1b, the logical unit reserves the specified logical unit, but only if the initiator, 3rdPty bit,

and Third Party Device ID fields (in CDB or in Parameter List). The logical unit retains this information to determine

when a third party release function is valid.

LongID: If the Long ID bit is set to 1b and 3rd Party is set to 1b and the Parameter List Length is 8, the parameter

list contains the eight bytes of the device ID of the Third Party Device ID.

If the 3rd Pty bit is ZERO, the LONGID bit field is ignored.

Third-Party Device ID: If the Third-Party bit is ZERO, then the Third-Party Reservation option is not requested.

If the 3rdPty bit is one, a RESERVE reserves the drive for the SCSI device specified in the Third-Party Device ID

field (LongID = 0b) or the parameter data (LongID = 1b). The logical unit preserves the reservation until any one of

the conditions mentioned above occurs.

The logical unit ignores any attempt made by any other initiator to release the reservation and returns GOOD

status.

If the Third Party Device ID value is equal to or smaller than 255 (FFh), the LongID field may be 0b and the Third

Party Device ID value is sent in this field.

The contents of the Third Party Device ID field in the CDB is ignored when the LongID field is set to 1b. See

Parameter List Length.

Note: If the Third Party Device ID value is greater than 255 (FFh), LongID must be set to 1b.

Parameter List Length: The contents of this field specify the length, in bytes, of the parameter list that is

transferred from the initiator to the logical unit.

If the 3rdPty bit is set to ZERO or LongID is set to ZERO, the PARAMETER LIST LENGTH field is ignored.

The field value is ignored when the LongID field is set to 0b.

The field value must be at least 8 when the LongID field is set to 1b.

If the LongID is set to 0b and Parameter List Length is not ZERO, the command is terminated with a CHECK

CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The ASC is set to INVALID FIELD IN CDB.

If the LongID field is set to 1b and Parameter List Length is set to less than eight (8), the command is terminated

with a CHECK CONDITION status and the Sense Key is set to ILLEGAL REQUEST. The ASC is set to INVALID

FIELD IN CDB.

An initiator that holds a current reservation may modify that reservation e.g., switch third-parties by issuing another

RESERVE command to the drive.

When the LongID bit is set to 1b, the parameter list has the format shown in Table 6-94.

Table 6-94: RESERVE (10) LongID Only Parameter List — Data Format

Bit

Byte

(MSB)

0 - 7

Third Party Device ID

(LSB)

6-94

SONY AIT-5 drive SDX-1100V series Ver.1.0

REWIND

6.Command Specification

6.24. REWIND 01h

Bit

Byte

Operation Code (01h)

Reserved

Immed

Reserved

Control

The REWIND command requests the drive to position the media at the beginning of the currently active partition.

Before rewinding, the drive writes any buffered data to tape and appends an EOD.

Immed: When this bit is set, the drive writes any remaining buffered data followed by an EOD to tape. It then

returns status to the initiator before beginning the actual rewind operation. If the Immediate bit is not set, status will

be returned after the rewind has completed.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-95

6.Command Specification

SEND DIAGNOSTIC

6.25. SEND DIAGNOSTIC 1Dh

Bit

Byte

Operation Code (1Dh)

PF Reserved Self Test DevOfl(0)

Reserved

UnitOfl

(LSB)

(MSB)

Parameter List Length

Control

The SEND DIAGNOSTIC command requests the drive to perform diagnostic tests on itself.

PF: The drive expects the Page Format bit to be set to indicate that the parameters transferred during the DATA

OUT phase will include four bytes of header information as well as the diagnostic test bytes.

If this bit is not set, the parameter bytes will only describe the diagnostic test. Note that if the Self Test bit is set,

this bit must be ZERO else the drive will return a CHECK CONDITION with the ILLEGAL REQUEST sense key

set.

Self Test: When this bit is set, the drive executes its POWER-ON SEQUENCE. The Parameter List Length must

be ZERO when this bit is set other-wise the drive will return a CHECK CONDITION status with an ILLEGAL

REQUEST sense key set. After Self Test, a LOAD command is required to bring the drive online.

DevOfl: Device Off-line is not supported and will be set to ZERO, otherwise the driver will return a CHECK

CONDITION status with an ILLEGAL REQUEST SENSE key set.

UnitOfl: This bit must be set for proper operation of any diagnostic test except Self Test. If this bit is not set,

except for self-test, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.

Parameter List Length: This field provides the count of the number of Parameter List bytes which will be

transferred in the DATA-OUT phase. These bytes describe the test that is to be run. This field must be set to

ZERO if the Self-Test bit is set.

If the PF bit is ZERO, the Parameter List describes the diagnostic test to be executed. The diagnostic tests are five

bytes in length. If the Parameter List Length is not set to five or ZERO if the Self-Test bit is set, the drive returns a

CHECK CONDITION status with an ILLEGAL REQUEST sense key set.

If the PF bit is set, the Parameter List includes a four byte header as of the form:

Table 6-95: Diagnostic Page Format

Bit

Byte

Page Code

Reserved

Page Length (n-3)

(MSB)

(LSB)

Page Code: The drive supports two Page Codes:

00h - Return Supported pages

81h - Drive Diagnostic page

For Page Code 00h, the Page Length must be ZERO and the Parameter List Length must be set to four otherwise

the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key set. This Page Code

requests that the drive return a list of the supported pages in the DATA -IN phase of RECEIVE DIAGNOSTIC.

6-96

SONY AIT-5 drive SDX-1100V series Ver.1.0

SEND DIAGNOSTIC

6.Command Specification

For Page Code 81h, the Page Length must be five and the Parameter List Length must be set to nine otherwise

the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense key set. This page Code

instructs the drive to execute the five bytes of diagnostic test that follow the four bytes of header. The five

bytes of diagnostic test information will be of the form:

Table 6-96: Diagnostic Test information

Bit

Byte

Diagnostic Test Number

Loop Count Identifier

Parameter A

Break

Parameter B

Parameter C

Diagnostic Test Number: Number identifying which test to execute

Break: This field allows the initiator to terminate the diagnostic test when an error occurs.

0 = stop on first error

1 = do not stop on error

Loop Count Identifier: The number of times that the test will be repeated before status is returned.

0 = run once

1 = run once

2 = run 10 times

3 = run 100 times

4 = run 1000 times

Parameters A, B, C: Any additional parameters required to fully define the diagnostic test.

If the test completes successfully, the drive returns GOOD status. If the test failed, a CHECK CONDITION status is

returned with a HARDWARE ERROR Sense Key and an Additional Sense Code of DIAGNOSTIC FAILURE set.

The initiator will then send a REQUEST DIAGNOSTIC command which will return information as to which test

failed and the nature of the failure. If the test requested is not defined, not available to the requested processor,

or not executable in the current configuration, this information will be reported in the data returned by the

REQUEST DIAGNOSTIC command.

Refer to clause 7, Drive Diagnostics for more detailed information about the supported diagnostic tests and test

operations.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-97

6.Command Specification

SET DEVICE IDENTIFIER A4h

6.26. SET DEVICE IDENTIFIER A4h

Table 6-97: SET DEVICE IDENTIFIER command

Bit

Byte

Operation Code (A4h)

Service Action(06h)

Reserved

2 – 5

6 – 9

Reserved

Parameter List Length

Reserved

Control

The SET DEVICE IDENTIFIER command (Table 6-97) requests that the device identifier information in the logical

unit be set to the value received in the SET DEVICE IDENTIFIER command parameter list.

The Identifier set by an initiator may be from 0 (reset) to 64 bytes in increments of 1 byte.

The identifier is preserved over power cycles and reset events (see the REPORT DEVICE IDENTIFIER

command).

Service Action: Service Action must be 06h.

If the Service Action is not 06h, the command is terminated with a CHECK CONDITION status, the sense key is

set to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.

Parameter List Length: Parameter List Length specifies the length in bytes of the Identifier that is transferred

from the application client to the logical unit. The maximum value for this field is 64 bytes; the minimum is 0.

If the parameter list length exceeds 64, the command is terminated with a CHECK CONDITION status, the sense

key is set to ILLEGAL REQUEST, and the ASC/ASCQ is set to INVALID FIELD IN CDB.

A parameter list length of ZERO indicates that no data is to be transferred, the identifier in the logical unit is to be

set to zero length, and subsequent REPORT DEVICE IDENTIFIER commands return an Identifier length of zero.

The SET DEVICE IDENTIFIER parameter list contains the identifier to be set by the logical unit (see Table 6-98).

Table 6-98: SET DEVICE IDENTIFIER Parameter List — Data Format

Bit

Byte

0 - <= 63

Identifier

Idenfifer:The Identifier field is an initiator selected value, to be returned in subsequent valid REPORT DEVICE

IDENTIFIER commands or until reset or until replaced by another valid SET DEVICE IDENTIFIER command.

On successful completion of a SET DEVICE IDENTIFIER command a unit attention will be generated for all

initiators except the initiator that issued the SET DEVICE IDENTIFIER command with service action 06h. When

reporting the unit attention condition the additional sense code will be set to DEVICE IDENTIFIER CHANGED.

6-98

SONY AIT-5 drive SDX-1100V series Ver.1.0

SPACE

6.Command Specification

6.27. SPACE 11h

Bit

Byte

Operation Code (11h)

Reserved

Code

(MSB)

Count

(LSB)

Control

The SPACE command provides a variety of positioning functions that are determined by the Code and Count fields

in the CDB. Both forward (toward EOM/P) and reverse (toward BOM/P) positioning are provided.

Code: The supported values are:

Table 6-99: SPACE codes

Code

000b

001b

011b

100b

Description

Blocks

Filemarks

EOD

Setmarks

Note: The drive will reject a SPACE Setmark command if it has not configured through MODE SELECT to report

Setmarks. The drive will return a CHECK CONDITION status with the Sense Data set to ILLEGAL REQUEST. In

this command description the word “mark” is used to mean Filemark or Setmark. Only where their responses

differ Filemark and Setmark will be referred explicitly.

Count: When spacing over blocks or marks, the Count field is interpreted as follows:

A positive value N causes forward movement over N blocks or marks. The tape is logically positioned after the Nth

block (or mark) on the EOM/P side.

A ZERO value causes no change in the logical position.

A negative value -N (2’s complement notation) causes reverse movement over N blocks or marks. The tape is

logically positioned on the BOM /P side of the Nth block (or mark).

When spacing to EOD, the Count field is ignored. Forward movement occurs until the drive encounters EOD.

When executing a SPACE, the drive implements the following hierarchy: Blocks (lowest), Filemarks, Setmarks,

EOD, BOM/P or EOM/P (highest)

Therefore, SPACE N blocks command will terminate with GOOD status after the Nth block, or with a CHECK

CONDITION status on any occurrence of Filemark, Setmark, EOD, BOM/P or EOM/P. SPACE N Filemarks will halt

on the Nth Filemark or on any occurrence of Setmark, EOD, BOM/P or EOM/P, and so on. Within the Sense Data,

the fields will be set as described on the following table.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-99

6.Command Specification

SPACE

Table 6-100: SPACE CHECK CONDITION results

Sense Data

Spacing

Event

Detected

Valid

Mark

EOM

Sense Key

ASC/ASCQ

Filemark Detected

Setmark Detected

Note

Blocks

Filemark

No Sense

a,b

Setmark

EOD

No Sense

a,b,d

Blank Check

No Sense

BOT

BOM/P Detected

EOM/P Detected

Setmark Detected

b,e

b,f

Phy EOT

Medium Error

No Sense

Filemarks Setmark

EOD

a,b,d

Blank Check

No Sense

BOT

BOM/P Detected

EOM/P Detected

b,e

b,f

Phy.EOT

Medium Error

Blank Check

No Sense

Setmarks EOD

BOT

BOM/P Detected

EOM/P Detected

BOM/P Detected

EOM/P Detected

b,e

b,f

Phy.EOT

Medium Error

No Sense

EOD

BOT

c,e

c,f

Phy.EOT

Medium Error

Note a: The logical position is located on the EOM side of the mark if the movement was in the forward direction

and on the BOM side of the mark if movement was in the reverse direction.

Note b: The Information field in the Sense Data is set to the difference (residue) between the requested count and

the actual number of blocks, Filemarks, Setmarks, or spaced over.

Note c: The Information field in the Sense Data will contain no residue count and therefore the Valid bit is not set.

Note d: If it has been configured through MODE SELECT to Report Setmarks, the drive will only report that a

Setmark has been detected while spacing over blocks or Filemarks. Otherwise, the drive will continue the space

operation and the presence of the Setmark will be transparent to the nitiator.

Note e: The tape is physically positioned at BOM/P.

Note f: EOM is only reported when the physical EOM/P is encountered. The tape is physically positioned at

EOM/P.

6-100

SONY AIT-5 drive SDX-1100V series Ver.1.0

SPACE

6.Command Specification

6.27.1. CHECK CONDITION

NO SENSE: If a Filemark is encountered while spacing over blocks, the Filemark and Valid bits in extended sense

are set to one. The Information field in the Sense Data is set to the difference (residue) between the requested

count and the actual number of blocks spaced over (not including the mark).

If a Save Setmark is encountered while spacing over blocks or Filemarks, nothing is reported unless the logical

unit has been configured through MODE SELECT to Report Save Setmarks.

If the Report Save-Setmarks configuration is enabled and a Save-Setmark is encountered while spacing over

blocks or Filemarks, the Valid bit and the Additional Sense Code in the Sense Data are set to indicate that a

Save-Setmark has been encountered. The Information field in the Sense Data is set to the difference (residue) in

the requested count and the actual number of blocks or Save-Setmarks spaced over (not including the detected

Save-Setmark).

If the EOD is detected while spacing over blocks or marks, the Valid bit and the Additional Sense Code in the

Sense Data are set to indicate that an EOD has been encountered. The Information field in the Sense Data is

set to the difference (residue) in the requested count and the actual number of blocks or marks spaced over.

If the BOT is detected while spacing over blocks or marks in the reverse direction, the EOM bit is set in extended

sense. The Valid bit is set to one and the Information field to the difference (residue) between the requested count

and the actual number of blocks or Filemarks spaced over.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-101

6.Command Specification

TEST UNIT READY 00h

6.28. TEST UNIT READY 00h

Bit

Byte

Operation Code (00h)

Reserved

Control

The TEST UNIT READY command provides a means to check if the drive is ready. This is not a request for a

self-test. If the drive is able to accept an appropriate medium-access command without returning a CHECK

CONDITION, this command will return a GOOD status. Otherwise, a CHECK CONDITION will be reported and the

sense key will be NOT READY.

Table 6-101: TEST UNIT READY results

Drive Status

Sense Key

ASC/ASCQ Description

Tape Loaded

00 No Sense

00 NO ADDITIONAL SENSE INFORMATION

No Tape Present

02 Not Ready 3A 00 MEDIUM NOT PRESENT

Tape Loading

02 Not Ready 04 01 LOGICAL UNIT IS BECOMING READY

02 Not Ready 04 00 LOGICAL UNIT NOT READY

Tape Unloading

Tape Unloaded (but retained in drive)

6-102

SONY AIT-5 drive SDX-1100V series Ver.1.0

WRITE 0Ah

6.Command Specification

6.29. WRITE 0Ah

Bit

Byte

Operation Code (0Ah)

Reserved

Fixed

(LSB)

(MSB)

Transfer Length

Control

The WRITE command requests that the drive write the data that is transferred from the initiator to the logical

position.

Fixed: The Fixed bit specifies whether fixfed-length or variable-length blocks are to be transferred.

If the Fixed bit is set to ZERO, Variable Block mode is selected. A single block is transferred from the initiator and

is written to the current logical tape position. If the WRITE command complete successfully, the tape is logically

positioned after this block(EOM/P side).

If the Fixed Bit is set to one, the Transfer Length field specifies the number of blocks to be transferred to the

current logical position. This is valid only if the drive is currently operating in Fixed Block mode, in other words,

when it has been instructed to use fixed-length blocks with MODE SELECT. The current block length is the block

length defined in the MODE SELECT command. Upon termination, the tape is logically positioned after these

blocks (EOM/P side).

If the EARLY-WARNING is detected while writing, the drive will finish writing any buffered data. The command will

terminate with a CHECK CONDITION status., The EOM bit is set and the Sense Key field in the Sense Data is set

to NO SENSE and the ASC and ASCQ fields are set to EOM/P detected. The drive will attempt to complete any

subsequent writes, returning a CHECK CONDITION status in each case.

If the drive encounters the physical EOM when attempting a WRITE, a CHECK CONDITION status is returned.

The EOM and Valid bits are set and the Sense Key field in the Sense Data is set to VOLUME OVERFLOW. The

Information field contains the residue count and the ASC and ASCQ fields are set to EOM/P Detected. The tape is

physically positioned at EOM/P.

If the Transfer Length is ZERO, no data will be transferred and the current position on the logical unit will not be

changed.

The drive flushes its write buffer to tape and appends an EOD under the following conditions:

1. Receipt of the following non-write commands:

READ

SPACE

ERASE

READ BUFFER

WRITE BUFFER

REWIND

LOAD/UNLOAD

MODE SELECT (Media Operation)

LOCATE

The buffer can be maintained through the following media commands, assuming that no other flush condition has

been met, for example, write hold-off time-out.

WRITE

WRITE FILEMARKS (except count field of 0)

2. The write hold-off time limit is exceeded.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-103

6.Command Specification

WRITE ATTRIBUTE

6.30. WRITE ATTRIBUTE 8Dh

The WRITE ATTRIBUTE command (Table 6-102) allows an application client to write attributes to medium auxiliary

memory. Application clients will issue the READ ATTRIBUTE command prior to using this command to discover

device server support for medium auxiliary memory.

Table 6-102: WRITE ATTRIBUTE command

Bit

Byte

OPERATION CODE ( 8Dh)

Reserved

(MSB)

Reserved for SMC –2 devices (0)

(LSB)

VOLUME NUMBER (0)

Reserved

PARTITION NUMBER (0)

Reserved

(MSB)

PARAMETER LIST LENGTH

(LSB)

Reserved

CONTROL

VOLUME NUMBER: The VOLUME NUMBER specifies a volume within the Medium Auxiliary Memory. The

number of volumes of the MAM will equal that of the attached multi-volume medium. The mult-volume is not

supported by the drive. If this field is set to non-ZERO, a check condition status is returned with a ILLEGAL

REQUEST sense key.

PARTITION NUMBER: The PARTITION NUMBER specifies a partition within a volume. The number of partitions

of the MAM will equal that of the attached multi-partition medium. The multi partition is not supported by the

drive. If this field is set to non-ZERO, a check condition status is returned with a ILLEGAL REQUEST sense key.

If the combination of VOLUME NUMBER and PARTITION NUMBER is not valid, the command will be terminated

with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST, and the additional sense

data will be set to INVALID FIELD IN CDB.

PARAMETER LIST LENGTH: The PARAMETER LIST LENGTH field specifies the length in bytes of the

parameter list contained in the DATA-OUT Buffer. A parameter list length of zero indicates that no parameter data

is present; this will not be considered an error. If the parameter list length results in the truncation of an attribute,

the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense key will be set

to ILLEGAL REQUEST and the ASC will be set to PARAMETER LIST LENGTH ERROR.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-104

WRITE ATTRIBUTE

6.Command Specification

The parameter list will have the format shown in Table 6-103. Attributes will be sent in ascending numerical order.

If the attributes are not in order, no attributes will be changed and the WRITE ATTRIBUTE command will be

terminated with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST and the ASC will

be set to INVALID FIELD IN PARAMETER LIST.

Table 6-103: WRITE ATTRIBUTE parameter list format

Bit

Byte

(MSB)

PARAMETER DATALENGTH (n-3)

(LSB)

ATTRIBUTE 0

…

ATTRIBUTE x

The PARAMETER DATA LENGTH field will contain the number of bytes of attribute data and will be ignored by the

logical unit.

The format of the attribute is described later.

If there is not enough space to write the attributes to the medium auxiliary memory, no attributes will be changed

and the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense key will

be set to ILLEGAL REQUEST and the ASC will be set to AUXILIARY MEMORY OUT OF SPACE.

If the medium auxiliary memory is not accessible because there is no medium present, no attributes will be

changed and the WRITE ATTRIBUTE command will be terminated with a CHECK CONDITION status. The sense

key will be set to NOT READY and the ASC will be set to AUXILIARY MEMORY NOT ACCESSIBLE.

If the Medium Auxiliary Memory has failed (e.g. bad checksum) the WRITE ATTRIBUTE command will be

terminated with a CHECK CONDITION status. The sense key will be set to MEDIUM ERROR and the ASC will be

set to AUXILIARY MEMORY WRITE ERROR.

If the WRITE ATTRIBUTE command parameter data contains an attribute with an ATTRIBUTE LENGTH field set

to ZERO, then one of the following actions will occur:

If the attribute state is unsupported or read only, no attributes will be changed and the WRITE ATTRIBUTE

command will be terminated with a CHECK CONDITION status. The sense key will be set to ILLEGAL REQUEST

and the ASC will be set to INVALID FIELD IN PARAMETERLIST;

If the attribute state is read/write, the attribute will be changed to the nonexistent state. The attribute will not be

returned in response to a READ ATTRIBUTE command and not reported by the read ATTRIBUTE command with

ATTRIBUTE LIST service action; or

If the attribute state is nonexistent, the attribute in the WRITE ATTRIBUTE command parameter list will be

ignored; this will not be considered an error.

If any of the following conditions occur, no attributes will be changed, the WRITE ATTRIBUTE command will be

terminated with a CHECK CONDITION status, the sense key will be set to ILLEGAL REQUEST, and the ASC will

be set to INVALID FIELD IN PARAMETER LIST.

If the parameter data attempts to change an attribute in the read only state.

If the parameter data contains an attribute with INCORRECT ATTRIBUTE LENGTH field contents; or

If the parameter data contain an attribute with unsupported ATTRIBUTE VALUE field contents.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-105

6.Command Specification

WRITE BUFFER

6.31. WRITE BUFFER 3Bh

Bit

Byte

Operation Code (3Bh)

Reserved

Mode

Buffer ID

Buffer Offset

(MSB)

(LSB)

Parameter List Length

Control

The WRITE BUFFER command is used in conjunction with the READ BUFFER command as a diagnostic

function.

The WRITE BUFFER command except Echo buffer is executed only when there is no tape inserted in the drive or

when the tape is positioned at BOT. Otherwise, the drive will return a CHECK CONDITION status with an ILLEGAL

Request Sense Key.

Note: The drive will write any buffered data to tape prior to executing the WRITE BUFFER command except Echo

buffer. Any data that is then transferred by the WRITE BUFFER is not written to tape.

Mode: The drive supports the following values within the Mode field. If any other value is set, the drive will

terminate the command with a CHECK CONDITION status with an ILLEGAL REQUEST sense key.

Table 6-104: WRITE BUFFER Mode Field

Mode

0000b

0010b

1010b

Description

Combined header and data

Data

Echo Buffer

Combined Header and Data Mode (0000b) - In this mode, the test data to be transferred must be preceded by a

four-byte header. The four-byte header consists of all reserved bytes. The Parameters List Length specifies the

maximum number of bytes that will be transferred during the DATA-OUT phase. This number includes four bytes

of header, so the data length to be stored in the buffer is transfer length minus four. The initiator will ensure that

the transfer length is not greater than four plus the available length that is returned in the header of the READ

BUFFER command.

Data Mode (0010b)- In this mode, the DATA-OUT phase contains only buffer test data.

Echo Buffer (1010b) - In this mode the data will be stored in an echo buffer. Data will be sent aligned on four-byte

boundaries. The BUFFER ID and BUFFER OFFSET fields are ignored in this mode. The drive assigns echo

buffer on a per initiator basis. The initiator will attempt to ensure that the parameter list length does not exceed the

capacity of the echo buffer. The BUFFER CAPACITY field in the READ BUFFER echo buffer descriptor

determines the capacity of the echo buffer. If the PARAMETER LIST LENGTH field exceeds the buffer capacity,

the drive will return a CHECK CONDITION status with a Request Sense Key of ILLEGAL REQUEST.

Table 6-105: WRITE BUFFER Mode Field

Buffer ID: The supported values are:

Buffer ID

Description

Offset

- 0x01000000

Write Group Buffer

0x01000000 - 0x02000000

0x02000000 - 0x03000000

0x03000000 - 0x03700000

If an unsupported Buffer ID code is requested, the drive returns a CHECK CONDITION status with an ILLEGAL

REQUEST sense key.

6-106

SONY AIT-5 drive SDX-1100V series Ver.1.0

WRITE BUFFER

6.Command Specification

Buffer Offset: The buffer offset field contains the byte offset within the specified buffer from which data will be

transferred to. The initiator will conform to the offset boundary requirements returned in the WRITE BUFFER

descriptor. If this field is not set to a four-byte boundary, it will return a CHECK CONDITION status with an

ILLEGAL REQUEST sense key and set the Additional Sense Code to ILLEGAL FIELD IN CDB.

Parameter List Length: This field specifies the maximum number of bytes that will be transferred during the

Data-Out phase. The initiator will attempt to ensure that the Parameter List Length does not exceed the buffer

capacity. If this does occur, the drive returns a CHECK CONDITION status with an ILLEGAL REQUEST sense

key .The capacity of the buffer can be determined from the Buffer capacity field in the Read Buffer descriptor. The

Parameter List Length must be greater than four and be aligned to a four-byte boundary (except in data only

mode), Otherwise, the drive will return a CHECK CONDITION status with an ILLEGAL REQUEST sense key set.

SONY AIT-5 drive SDX-1100V series Ver.1.0

6-107

6.Command Specification

WRITE FILEMARKS

6.32. WRITE FILEMARKS 10h

Bit

Byte

Operation Code (10h)

Reserved

WSmk

Immed

(LSB)

(MSB)

Number of Filemarks or Setmarks

Control

The WRITE FILEMARKS command causes the specified number of Filemarks or Setmarks to be written to the

current logical position.

WSmk: If this bit is set, the drive writes a Setmark to tape instead of a Filemark.

Immed: If this bit is set, the drive returns status as soon as the CDB has been validated. An Immediate bit of

ZERO indicates that status will not be returned until the operation has completed.

Number of Filemarks or Setmarks: This is the number of consecutive marks to be written to tape. A value of

ZERO is not considered an error and GOOD status is returned. If this field is set to ZERO, the drive flushes any

data buffer to the tape.

If the Early-Warning is detected while writing the marks, the drive will finish writing any buffered data. The

command will terminate with a CHECK CONDITION status. Within the Sense Data, the EOM bit is set, the Sense

Key field is set to NO SENSE and the Additional Sense Code and Additional Sense Code Qualifier fields are set to

EOM/P detected. The drive will attempt to complete any subsequent WRITE FILEMARKS, returning a CHECK

CONDITION status in each case.

If the drive encounters the physical EOM when attempting a WRITE FILEMARKS, a CHECK CONDITION status is

returned. Within the Sense Data, the EOD and Valid bits are set and the Sense Key field is set to VOLUME

OVERFLOW. The Information field contains the residue count and the Additional Sense Code and Additional

Sense Code Qualifier fields are set to EOM/P Detected. The tape is physically positioned at EOM/P.

6-108

SONY AIT-5 drive SDX-1100V series Ver.1.0

7.Drive Diagnostics

7. Drive Diagnostics

This clause deals with the diagnostics supported by the drive. Each diagnostic is described in detail and possible

error codes are discussed.

7.1. Overview

The diagnostic firmware for this product is designed to achieve the following objectives:

- Isolate hardware failures

- Verify the media

- Provide predictive information which can lead to the early detection of potential problems

- Provide remote support capabilities

- Satisfy manufacturing testing needs

How these objectives are achieved:

- Fault isolation is achieved by providing an extensive set of diagnostic tests.

- Media verification is achieved by error rate testing and tape logs.

- Predictive data is provided in the form of a tape log and runtime error logs. Logs are maintained within the drive's

RAM, EEPROM and on the AIT cassettes.

- Remote support capability is provided by allowing all tests and test sequences to be initiated via the host

interface. Similarly, all test results are reported back to the host via the interface.

- Manufacturing needs are satisfied by providing unrestricted access to all internal tests.

7.2. Diagnostic Test

This clause describes the Diagnostic Test facilities of the drive. The method for executing tests and receiving test

results from the Host is described and a full list of available tests and possible result messages is given.

Diagnostics can be initiated in several ways:

- Power-on Self Test

- Send Diagnostic command initiating a Self Test

- Send Diagnostic command initiating a specific test or sequence

Each type of Diagnostics will be described in detail.

7.2.1. Power-on Self Test

Each time power is applied to the drive which will automatically perform a series of diagnostics on itself to insure

that the basic functions of the drive are performing properly. The power-on Self Test sequence is shown below:

Power supply voltage exceeds power-up threshold

Main Processor ROM checksum

Main Processor Destructive RAM Test

The following 3 tests are initiated automatically after power-up and therefore would be executing in parallel with

the tests listed above.

Front Panel Check

Buffer RAM Test

DMA Test

If a failure occurs with any of the power-on diagnostic tests, the drive will halt with the Status LED flashing.

SONY AIT-5 drive SDX-1100V series Ver.1.0

7-1

7.Drive Diagnostics

If an error is detected during power-up, the drive will return a CHECK CONDITION status to the host on the

command received first. The host shall issue a REQUEST SENSE command to determine the cause of the

CHECK CONDITION status. The Sense data returned by the drive will have a Sense Key of 6 (Unit Attention) and

the ASC/ASCQ will be 29 80 (Drive failed power or test or diagnostic). The host can then issue a RECEIVE

DIAGNOSTIC RESULT command to the drive in order to identify the specific diagnostic test that failed and the

failure error code.

The drive should be checked by a qualified person to determine what action should be taken.

7.2.2. SEND DIAGNOSTIC command - Self Test

The host computer can request that the drive perform a Self Test on itself to verify that it is functioning normally.

The Self Test bit in the SEND DIAGNOSTIC command is set to ONE, and the Parameter List Length is ZERO.

This initiates the Self Test Diagnostic which is similar to the Power-on self test except that non-destructive RAM

testing is substituted for the destructive RAM tests.

If an error is detected during this test, the drive will return a CHECK CONDITION status to the host. The host shall

issue a REQUEST SENSE command to determine the cause of the CHECK CONDITION status. The Sense data

returned by the drive will have a Sense Key of 4 (Hardware Error) and the ASC/ASCQ will be 44 00 (Internal

Target Failure). The host can then issue a RECEIVE DIAGNOSTIC RESULT command to the drive in order to

identify the specific diagnostic test that failed and the failure error code.

The drive should be checked by a qualified person to determine what action should be taken.

7.2.3. SEND DIAGNOSTIC command - Individual Test

The SEND DIAGNOSTIC command also provides the capability to run each of the diagnostic tests individually. In

order to identify the diagnostic test to be executed, the SEND DIAGNOSTIC command should be configured as

follows:

Self Test bit = 0

Device Off-line bit = 0

Unit Off-line bit = 1

Parameter List Length = 5 or 9 (see below)

The Page Format (PF) bit is ZERO and the Parameter List Length is 5, the Parameter List in this case is 5 bytes

long and will be of the form:

Table 7-1: SEND DIAGNOSTIC Parameter If PF bit is ZERO

Bit

Byte

Diagnostic Test number

Loop Count

Break

Parameter A

Parameter B

Parameter C

7-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

7.Drive Diagnostics

The Page Format (PF) bit is ONE, and the Parameter List Length is 9, the Parameter List in this case is 9 bytes

long and will be of the form:

Table 7-2: SEND DIAGNOSTIC Parameters If PF bit is ONE

Bit

Byte

Page Code (81h)

Reserved

Page Length (00 05h)

(MSB)

Break

(LSB)

Diagnostic Test Number

Loop Count Identifier

Parameter A

Parameter B

Parameter C

Break: This field allows the initiator to terminate the diagnostic test when an error occurs.

0 = stop on first error

1 = do not stop on error

Loop Count Identifier: The number of times that the test should be repeated before status is returned.

0 = run once

1 = run once

2 = run 10 times

3 = run 100 times

4 = run 1000 times

Parameters A, B, C: Any additional parameters required to fully define the diagnostic test. These parameters are

unused and will be 00h.

7.2.4. Diagnostic Test Number Summary

The following is a list of the diagnostic capabilities of the drive. The Test Availability Code indicates if a particular

test can be executed by the Host computer or is executed during Power-on diagnostics (or both). The drive also

supports three types of diagnostics:

1. Individual Tests - Self contained modules designed to test a particular function of drive

2. Sequences - Automatic execution of a series of individual tests

3. Exercisers - Verification of a major function of the drive such as Read, Write, Search, etc.

The Diagnostic Test Number for each Test, Sequence or Exerciser is shown in the first column.

Test Availability Codes

─

Power–on Self–test

Host Diagnostics

both

─

SONY AIT-5 drive SDX-1100V series Ver.1.0

7-3

7.Drive Diagnostics

Sequence Test

Reset Sequence (61, 62, 71,72, 30)

Main Processor Kernel Test

Main Processor ROM checksum

Main Processor Destructive RAM Test

Drive Test

Buffer RAM Test

DMA Test

7.2.5. RECEIVE DIAGNOSTIC RESULT command

Whenever a diagnostic test is executed, the drive automatically prepares a diagnostic test result that can be

returned to the host computer when a RECEIVE DIAGNOSTIC RESULT command is issued.

If the PF bit in the SEND DIAGNOSTIC command was sent to one, the diagnostic test result will be preceded by a

four-byte header which will be of the form:

Table 7-3: RECEIVE DIAGNOSTIC RESULT - SCSI-2 Header

Bit

Byte

Page Code (81h)

Reserved

Page Length (00 05h)

(MSB)

(LSB)

Regardless of the PF bit in the SEND DIAGNOSTIC command, the five bytes of diagnostic test result information

will be of the form:

Table 7-4: RECEIVE DIAGNOSTIC RESULT

Bit

Byte

Reset

Error

Time

Re-Sync

Reserved

Error Set

Error Code

Result A

Result B

Diagnostic Test Number

Reset error: This bit is set when an error occurs during power-on self-test.

Time Re-Sync: This bit indicates that the time stamp saved with the error log has no relation to that of the

previous entry. It is only set by the logging routine within the data buffer as an error is logged.

7-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

7.Drive Diagnostics

Error set: Two set of error codes exist. The definition of the error is dependent upon when set is taken from as

follows:

0 - Runtime errors

2 - Drive diagnostic errors

Error code: Error codes for each error set are described in clause 6.22.

Result A: Typically this byte indicates the logical sub-assembly that failed:

1 - Drive Mechanism

2 - Drive Circuitry

Note: This byte has alternate meanings with some diagnostics. Refer to clause 6.22.

Result B: Typically this byte is unused however, this byte has alternate meanings with some diagnostics. Refer to

clause 6.22.

Test number: This is the test number to which the message applies (if a test fails within a sequence, the individual

test number will be returned).

Note: Diagnostic test 30 (Front Panel Check) will light each of the front panel LEDs so that the operator can verify

that the LEDs are functioning. There is no error detection within the drive for this test and therefore the Error Code,

Result A and Result B will always be ZERO.

SONY AIT-5 drive SDX-1100V series Ver.1.0

7-5

7.Drive Diagnostics

This page intentionally left blank.

7-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

8.APPENDIX A: ASC & ASCQ Alphabetic Order

8. APPENDIX A: ASC & ASCQ Alphabetic Order

ASC and ASCQ Assignments

Alphabetic Order

BYTE

DESCRIPTION

AUXILIARY MEMORY OUT OF SPACE

AUXILIARY MEMORY READ ERROR

AUXILIARY MEMORY WRITE ERROR

BEGINNING-OF-PARTITION/MEDIUM DETECTED

BLOCK SEQUENCE ERROR

BROKEN MIC IS LOADED IN AIT MODE

CANNOT READ MEDIUM - INCOMPATIBLE FORMAT

CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT

CARTRIDGE FAULT

CLEANING FAILURE

CLEANING CARTRIDGE INSTALLED

COMMAND PHASE ERROR

COMMAND SEQUENCE ERROR

DATA PHASE ERROR

DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN

DRIVE FAILED POWER-ON TEST OR DIAGNOSTIC - (SONY Unique)

END-OF-DATA DETECTED

END-OF-DATA NOT FOUND

END-OF-PARTITION/MEDIUM DETECTED

FAILURE PREDICTION THRESHOLD EXCEEDED

FILEMARK DETECTED

INCOMPATIBLE MEDIUM INSTALLED

INCOMPLETE BLOCK READ

INITIATOR DETECTED ERROR MESSAGE RECEIVED

INSUFFICIENT REGISTRATION RESOURCES

INTERNAL TARGET FAILURE

INVALID BITS IN IDENTIFY MESSAGE

INVALID COMMAND OPERATION CODE

INVALID FIELD IN CDB

INVALID FIELD IN PARAMETER LIST

INVALID MESSAGE ERROR

LOGICAL UNIT IS IN PROCESS OF BECOMING READY

SONY AIT-5 drive SDX-1100V series Ver.1.0

8-1

8.APPENDIX A: ASC & ASCQ Alphabetic Order

LOGICAL UNIT NOT READY, AUXILIARY MEMORY NOT ACCESSIBLE

LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE

LOGICAL UNIT NOT SUPPORTED

MECHANICAL POSITIONING ERROR

MEDIUM AUXILIARY MEMORY ACCESIBLE

MEDIUM FORMAT CORRUPTED

MEDIUM NOT PRESENT

MEDIUM NOT PRESENT_MEDIUM AUXILIARY MEMORY ACCESIBLE

MESSAGE ERROR

MICROCODE HAD BEEN CHANGED

MODE PARAMETERS CHANGED

NO ADDITIONAL SENSE INFORMATION

NOT READY TO READY TRANSITION

(MEDIUM MAY HAVE CHANGED)

OVERLAPPED COMMANDS ATTEMPTED

PARAMETER LIST LENGTH ERROR

PARAMETER NOT SUPPORTED

PARAMETER VALUE INVALID

PARAMETERS CHANGED

PARITY ERROR

PERIPHERAL DEVICE WRITE FAULT

PERSISTENT WRITE PROTECT

POSITIONING ERROR DETECTED BY READ OF MEDIUM

POWER ON, RESET, OR BUS DEVICE RESET OCCURRED

REGISTRATION PREEMPTED

RESERVATION PREEMPTED

REPOSITION ERROR

SAVING PARAMETER NOT SUPPORTED

SELECT OR RESELECT FAILURE

SETMARK DETECTED

TAPE LENGTH ERROR

UNRECOVERED READ ERROR

WRITE APPEND ERROR

WRITE ERROR

WRITE PROTECTED

8-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

9.APPENDIX B: ASC & ASCQ Numeric Order

9. APPENDIX B: ASC & ASCQ Numeric Order

ASC and ASCQ Assignments

Numeric Order

BYTE

DESCRIPTION

NO ADDITIONAL SENSE INFORMATION

FILEMARK DETECTED

END-OF-PARTITION/MEDIUM DETECTED

SETMARK DETECTED

BEGINNING-OF-PARTITION/MEDIUM DETECTED

END-OF-DATA DETECTED

PERIPHERAL DEVICE WRITE FAULT

LOGICAL UNIT NOT READY, CAUSE NOT REPORTABLE

LOGICAL UNIT IS IN PROCESS OF BECOMING READY

LOGICAL UNIT NOT READY, AUXILIARY MEMORY NOT ACCESSIBLE

WRITE ERROR

AUXILIARY MEMORY WRITE ERROR

UNRECOVERED READ ERROR

INCOMPLETE BLOCK READ

AUXILIARY MEMORY READ ERROR

END-OF-DATA NOT FOUND

MECHANICAL POSITIONING ERROR

POSITIONING ERROR DETECTED BY READ OF MEDIUM

PARAMETER LIST LENGTH ERROR

INVALID COMMAND OPERATION CODE

INVALID FIELD IN CDB

LOGICAL UNIT NOT SUPPORTED

INVALID FIELD IN PARAMETER LIST

PARAMETER NOT SUPPORTED

PARAMETER VALUE INVALID

WRITE PROTECTED

PERSISTENT WRITE PROTECT

NOT READY TO READY TRANSITION

(MEDIUM MAY HAVE CHANGED)

POWER ON, RESET, OR BUS DEVICE RESET OCCURRED

DRIVE FAILED POWER-ON TEST OR DIAGNOSTIC - (SONY Unique)

PARAMETERS CHANGED

MODE PARAMETERS CHANGED

SONY AIT-5 drive SDX-1100V series Ver.1.0

9-1

9.APPENDIX B: ASC & ASCQ Numeric Order

RESERVATION PREEMPTED

REGISTRATION PREEMPTED

COMMAND SEQUENCE ERROR

INCOMPATIBLE MEDIUM INSTALLED

CANNOT READ MEDIUM - INCOMPATIBLE FORMAT

CLEANING CARTRIDGE INSTALLED

CANNOT WRITE MEDIUM - INCOMPATIBLE FORMAT

CLEANING FAILURE

MEDIUM FORMAT CORRUPTED

TAPE LENGTH ERROR

SAVING PARAMETER NOT SUPPORTED

MEDIUM NOT PRESENT

MEDIUM NOT PRESENT_MEDIUM AUXILIARY MEMORY ACCESIBLE

REPOSITION ERROR

INVALID BITS IN IDENTIFY MESSAGE

MICROCODE HAD BEEN CHANGED

MEDIUM AUXILIARY MEMORY ACCESIBLE

MESSAGE ERROR

INTERNAL TARGET FAILURE

SELECT OR RESELECT FAILURE

PARITY ERROR

INITIATOR DETECTED ERROR MESSAGE RECEIVED

INVALID MESSAGE ERROR

COMMAND PHASE ERROR

DATA PHASE ERROR

OVERLAPPED COMMANDS ATTEMPTED

WRITE APPEND ERROR

CARTRIDGE FAULT

INSUFFICIENT REGISTRATION RESOURCES

AUXILIARY MEMORY OUT OF SPACE

FAILURE PREDICTION THRESHOLD EXCEEDED

DECOMPRESSION EXCEPTION SHORT ALGORITHM ID OF NN

BROKEN MIC IS LOADED IN AIT MODE

9-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

10.APPENDIX C: ASC & ASCQ for AIT (Sony Unique)

10. APPENDIX C: ASC & ASCQ for AIT (Sony Unique)

ASC and ASCQ Assignments for AIT drive (Sony Unique)

Numeric Order

BYTE

DESCRIPTION

83h

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh

0Ch

0Dh

Reserved

MIC Header Error

No MIC Detected

MIC Checksum Error

MIC out of memory

No Data Body Detected in the MIC

MIC Read Error

No Cassette Detected

MIC is not formatted yet

MIC Write Fault

Requested address is write protected on the MIC

MIC is broken

MIC format type is undefined

MIC capacity field indicates illegal value. Acceptable value is 2Kbytes, 4Kbytes, 8Kbytes.

The drive will handle the MIC is 2Kbytes, when capacity field indicates illegal value.

83h

0Eh

Reserved

83h

7Fh

80h

81h

82h

83h

84h

Partition count exceeded

Reserved

MIC is exist but is not used

Reserved

83h

86h

87h

88h

89h

8Ah

8Bh

Broken MIC is loaded in AIT mode

Reserved

User Volume Note Size mismatch

User Partition Note Size mismatch

Reserved

83h

96h

97h

98h

99h

9Ah

Current Partition is not the last partition.

Cannot append the new partition, because the remaining capacity too short.

Cannot delete partition, because the indicated partition number is not appropriate.

Encounter the EOT while creating the new partition, append partition command is not

completed. (If a drive misleads the tape capacity by some reason, format command will be

failed on the way. In case of the situation, the Last Partition Number must hold the Last

Valid Partition Number, because it is reasonable and time saving. )

Cannot format tape because real tape capacity is exceeded.

83h

9Bh

9Ch

9Dh

Cannot append new partitions because the MIC is out of memory.

Reserved

83h

FFh

SONY AIT-5 drive SDX-1100V series Ver.1.0

10-1

10.APPENDIX C: ASC & ASCQ for AIT (Sony Unique)

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10-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

11.APPENDIX D: SCSI Commands (OP Code Order)

11. APPENDIX D: SCSI Commands (Op Code Order)

The following is a list of the supported SCSI Commands and page index:

PARA SCSI COMMAND

OP CODE

PAGE

6.28

6.24

6.22

6.14

6.12

6.29

6.32

6.27

6.2

TEST UNIT READY

REWIND

00h

01h

03h

05h

08h

0Ah

10h

11h

12h

15h

16h

17h

19h

1Ah

1Bh

1Ch

1Dh

1Eh

2Bh

34h

3Bh

3Ch

44h

4Ch

4Dh

55h

56h

57h

5Ah

5Eh

5Fh

8Ch

8Dh

A0h

6-102

6-95

6-84

6-69

6-63

6-103

6-108

6-99

6-3

REQUEST SENSE

READ BLOCK LIMITS

READ

WRITE

WRITE FILEMARKS

SPACE

INQUIRY

6.7

MODE SELECT (6)

RESERVE (6)

6-40

6-93

6-77

6-2

6.23

6.18

6.1

RELEASE (6)

ERASE

6.8

MODE SENSE (6)

LOAD/UNLOAD

6-54

6-8

6.3

6.17

6.25

6.11

6.4

RECEIVE DIAGNOSTIC RESULTS

SEND DIAGNOSTIC

PREVENT ALLOW MEDIUM REMOVAL

LOCATE

6-75

6-96

6-62

6-10

6-73

6-106

6-70

6-79

6-11

6-13

6-40

6-93

6-77

6-54

6-57

6-60

6-65

6-104

6-83

6.16

6.31

6.15

6.19

6.5

READ POSITION

WRITE BUFFER

READ BUFFER

REPORT DENSITY SUPPORT

LOG SELECT

6.6

LOG SENSE

6.7

MODE SELECT (10)

RESERVE (10)

6.23

6.18

6.8

RELEASE (10)

MODE SENSE (10)

PERSISTENT RESERVE IN

PERSISTENT RESERVE OUT

READ ATTRIBUTE

WRITE ATTRIBUTE

REPORT LUNS

6.9

6.10

6.13

6.30

6.21

SONY AIT-5 drive SDX-1100V series Ver.1.0

11-1

11.APPENDIX D: SCSI Commands (OP Code Order)

6.26

6.20

SET DEVICE ID

A4h

A3h

6-98

6-82

REPORT DEVICE ID

11-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

12. APPENDIX E: Medium Auxiliary Memory

Attribute

12.1. INTRODUCTION

This section will outline the design specifications for the implementation of selected Medium Auxiliary Memory

(MAM) attributes.

12.2. OVERVIEW

An increasing number of media types are incorporating small memory components into their products. The

creation and acceptance of the “Proposed Addition of Read and Write Attribute Commands to SPC-2” (AM

document) provides a uniform method to access the data stored on the Medium Auxiliary Memory. This section will

provide details on using MAM with this product.

12.3. MEDIUM AUXILIALY MEMORY ATTRIBUTE TYPES AND STATES

A MAM attribute is represented in a format described in the next section and is composed of:

1. An attribute identifier,

2. An attribute format code,

3. A bit indicating whether the identified attribute is read only,

4. An attribute length specifying the number of bytes in the identified attribute value, and

5. The value of the identified attribute.

There are three types of attribute (Table 12-1).

Table 12-1: Types of MAM Attributes

Attribute Type

Attribute Source

Example

Readable with

READ

Writable with

WRITE

ATTRIBUTE

Medium

Permanently stored in the Media

medium auxiliary memory Serial

Yes

during manufacture.

Number

Device

Host

Maintained by the drive

Load

Yes

Count

Backup

date

Maintained by the

application client.

Yes

Depending on that attribute type, attributes have the states shown in Table 12-1

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-1

12.APPENDIX E: Medium Auxiliary Memory Attribute

Table 12-2: MAM Attribute states

Attribute Type

Medium or Device

Attribute State

Read Only

Description

An application server may read the contents of the

attribute with the READ ATTRIBUTE command, but an

attempt to clear or change the attribute using the WRITE

ATTRIBUTE command will result in the command being

terminated with a CHECK CONDITION status. When the

READ ONLY bit is one, the attribute is in the read only

state.

Unsupported

Nonexistent

Read/Write

The drive does not support the attribute and will not return

it in response to a READ ATTRIBUTE command.

A host attribute does not exist in the medium auxiliary

memory until a WRITE ATTRIBUTE command creates it.

The attribute has been created using the WRITE

ATTRIBUTE command. After the attribute has been

created, the contents may be altered using subsequent

WRITE ATTRIBUTE commands. A read/write attribute

may be returned to be nonexistent state using a WRITE

ATTRIBUTE command with the attribute length set to

zero. When the READ ONLY bit is zero, the attribute is in

the read/write state.

Host

Read and Write Attribute Commands:

The READ ATTRIBUTE (8Ch) and WRITE ATTRIBUTE (8Dh) commands will be implemented as follows.

12.4. MEDIUM AUXILIARY MEMORY ATTRIBUTE DATA

12.4.1. Attribute Format

Each medium auxiliary memory attribute will be communicated between the application client and drive in the

format shown in Table 12-3. This format will be used in the parameter data for the WRITE ATTRIBUTE command

and the READ ATTRIBUTE command. The attribute format in this standard implies nothing about the physical

representation of an attribute in the medium auxiliary memory.

Table 12-3: MAM ATTRIBUTE Format

Bit

Byte

(MSB)

ATTRIBUTE IDENTIFIER

Reserved

(LSB)

READ

ONLY

(MSB)

FORMAT

ATTRIBUTE LENGTH (n-4)

(LSB)

(MSB)

ATTRIBUTE VALUE

The ATTRIBUTE IDENTIFIER field contains a code value identifying the attribute.

12-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

The READ ONLY bit indicates whether the attribute is in the read only state. If the READ ONLY bit is one, the

attribute is in the read only state. If the READ ONLY bit is zero, the attribute is in the read/write state.

The FORMAT field (Table 12-4) specifies the format of the data in the ATTRIBUTE VALUE field. ATTRIBUTES

defined by this standard include a requirement for the contents of the FORMAT field.

Table 12-4: MAM attribute formats

Format

00b

01b

Name

BINARY

ACSII

Description

The ATTRIBUTE VALUE will contain binary data.

The ATTRIBUTE VALUE field will contain only graphic codes (i.e.

byte code values 20h through &Eh), will be left-aligned placing any

unused bytes at the highest offset in the field, contain 20h (i.e. ASCII

space) in any unused bytes.

10b

11b

TEXT

The attribute contains textual data. The character set is as described

in the TEXT LOCALIZATION IDENTIFER attribute.

Reserved

The ATTRIBUTE LENGTH field specifies the length in bytes of the ATTRIBUTE VALUE field. Attributes defined by

this standard include a requirement for the contents of the ATTRIBUTE LENGTH field.

The ATTRIBUTE VALUE Field contains that current (READ ATTRIBUTE) or desired (WRITE ATTRBUTE) value of

the attribute.

12.4.2. Attribute Identifier Values

The values in the ATTRIBUTE IDENTIFIER field are assigned according to the attribute type and whether the

attribute is standard or vendor unique (Table 12-5).

Table 12-5: MAM attribute identifier range assignments

Attribute Identifiers

0000h – 03FFh

0400h – 07FFh

0800h – 0BFFh

0C00h – 0FFFh

1000h – 13FFh

1400h – 17FFh

1800h – FFFFh

Attribute Type

Device

Medium

Host

Device

Medium

Host

Standardization

Yes

Vendor Unique

Reserved

Drive will accept and process a WRITE ATTRIBUTES command containing standardized host type attribute

identifier values (i.e. 0800h-0BFFh) or vendor unique host type attribute identifier values (i.e., 1400h-17FFh).

Standardized host type attribute identifier values may be checked for conformance to the requirements described

later.

12.4.3. Standard Device Type Attributes

Device types attributes (Table 12-6) will be maintained and updated by the drive when the medium and associated

medium auxiliary memory are present. All supported medium type attributes will have a status of read only.

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-3

12.APPENDIX E: Medium Auxiliary Memory Attribute

Table 12-6: Device Common Attributes

Attribute Name

#Bytes Format

0000h

0001h

0002h

0003h

0004h

0005h

0006h

0007h

REMAINING CAPACITY IN PARTITION

MAXIMUM CAPACITY IN PARTITION

TAPEALERT FLAGS

LOAD COUNT

MAM SPACE REMAINING

ASSIGNING ORGANISATION

FORMATTED DENSITY CODE

INITIALIZATION COUNT

Binary

ASCII

Binary

0008h-0209h

020Ah

020Bh

020Ch

020Dh

020Eh – 021Fh

0220h

Reserved

DEVICE MAKE/SERIAL NUMBER AT LAST LOAD

DEVICE MAKE/SERIAL NUMBER AT LOAD - 1

DEVICE MAKE/SERIAL NUMBER AT LOAD - 2

DEVICE MAKE/SERIAL NUMBER AT LOAD - 3

Reserved

TOTAL MBYTES WRITTEN IN MEDIUM LIFE

TOTAL MBYTES READ IN MEDIUM LIFE

TOTAL MBYTES WRITTEN IN CURRENT IN CURRENT /LAST

LOAD

ASCII

Binary

0221h

0222h

0223h

0224h – 033Fh

0340h

0341h

0342h – 03FFh

TOTAL MBYTES READ IN CURRENT IN CURRENT /LAST LOAD

Reserved

MEDIUM USAGE HISTORY

PARTITION USAGE HISTORY

Reserved

Binary

0000h REMAINING CAPCACITY IN PARTITION and 0001h MAXIMUM CAPACITY IN PARTITION: These

attribute values are Native capacities assuming no data compression for the specified medium partition. These

values are expressed in increments of 1,048,576 bytes (i.e. a value of one means 1,048,576 bytes, two means

2,097,152 bytes, etc).

0002h TAPEALERT FLAGS: This attribute value provides a means of reporting the state of the Tape Alert flags

for the previous load of the medium. Each Tape Alert flag occupies one bit (Flag 1 = MSB Byte 1; Flag 64 = LSB,

Byte 8). The bits specify all the Tape Alert flags that were set during the previous load. (I.e. the bits are “sticky” for

the load).

003h LOAD COUNT: This attribute value indicates how many times this medium has been fully loaded. This

attribute should not be reset by any action of the drive.

0004h MAM SPACE REMAINING: This attribute value indicates the space currently free in the medium auxiliary

memory. The total medium auxiliary memory capacity is reported in the MAM CAPACITY attribute.

0005h ASSIGNING ORGANISATION: This attribute value identifies the organization responsible for the

specifications defining the values in the formatted DENSITY CODE attribute. The ASSIGNING ORGANIZATION

field will contain a value listed in the vendor identification list. The use of specific vendor identification, other than

the one associated with the device is allowed.

Note: It is intended that this field provide a unique vendor identification of the FORMATTED DENSITY CODE

attribute. In the absence of a formal registration procedure, T10 maintains a list of known vendor identification

codes in use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent duplication of

codes.

12-4

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

0006h FORMATTED DENSITY CODE: This attribute value provides information about the tape format for the

user.

0007h INITIALIZATION COUNT: This attribute value indicates the number of times that a drive has logically

formatted the medium. This figure is cumulative over the life of the medium and will never be reset.

020Ah, 020Bh, 020Ch, 020Dh DEVICE MAKE/SERIAL NUMBER AT LAST LOAD, DEVICE MAKE/SERIAL

NUMBERAT LOAD – 1, DEVICE MAKE/SERIAL NUMBER AT LOAD – 2 AND DEVICE MAKE/SERIAL

NUMBER AT LOAD –3: These attribute values give a rolling history of the last four drives in which the medium

has been loaded. The format of the attributes is shown in Table 12-7

Table 12-7: DEVICE VENDOR/SERIAL NUMBER attribute format

Bit

Byte

(MSB)

VENDOR IDENTIFICATION

PRODUCT SERIAL NUMBER

(LSB)

(MSB)

VENDOR IDENTIFICATION: This field will be the same value returned in the standard INQUIRY data.

PRODUCT SERIAL NUMBER: This field contains a vendor unique serial number. If the product serial number is

not available, the PRODUCT SERIAL NUMBER field will contain ASCII spaces (20h).

0220h TOTAL MBYTES WRITTEN IN MEDIUM LIFE and 0221h TOTAL MBYTES READ IN MEDIUM LIFE:

These attribute values indicate the total number of data bytes that are transferred to or from the medium surface,

after any data compression has been applied, over the entire medium life. These values are cumulative and will

never be reset. These values are expressed in increments of 1,048,576 bytes (i.e. a value of one means

1,048,576 bytes, two means 2, 097,152 bytes, etc).

0222h TOTAL MBYTES WRITTEN IN CURRENT/LAST LOAD AND 0223h TOTAL MBYTES READ IN

CURRENT/LAST LOAD: These attribute values indicate the total number of data bytes that are transferred to or

from the medium surface, after any data compression has been applied, during the current load if the medium is

currently loaded, or the last load if the medium is currently unloaded. The drive should reset these attributes to

zero when the medium is loaded. These values are expressed in increments of 1,048,576 bytes

(I.e. a value of one means 1,048,576 bytes, two means 2,097,152 bytes, etc).

0340h MEDIUM USAGE HISTORY: This attribute value provides statistical counters (Table 12-8) for the entire

medium. The value in each field is the sum for all partitions. If a field is not used, it should be set to zero.

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-5

12.APPENDIX E: Medium Auxiliary Memory Attribute

Table 12-8: Medium USAGE HISTORY attribute format

Bit

Byte

(MSB)

CURRENT AMOUNT OF DATA WRITTEN

The CURRENT WRITE RETRIES COUNT

CURRENT AMOUNT OF DATA READ

CURRENT READ RETRIES COUNT

PREVIOUS AMOUNT OF DATA WRITTEN

PREVIOUS WRITE RETRIES COUNT

PREVIOUS AMOUNT OF DATA READ

PREVIOUS READ RETRIES COUNT

TOTAL AMOUNT OF DATA WRITTEN

TOTAL WRITE RETRIES COUNT

TOTAL AMOUNT OF DATA READ

TOTAL READ RETRIES COUNT

(LSB)

(MSB)

LOAD COUNT

TOTAL CHANGE PARTITION COUNT

TOTAL PARTITION INITIALIZE COUNT

The CURRENT AMOUNT OF DATA WRITTEN field indicates the amount of data physically written to the medium

during this load of the medium. This value is expressed in increments of 1048576 bytes (e.g., a Value of one

means 1048576 bytes, two means 2097152 bytes, etc).

The CURRENT WRITE RETRY COUNT field indicates the total number of write retry was performed during this

load of the medium. The exact definition of the error counters is not part of this standard. This counter should not

be used to compare products because the products may define errors differently.

12-6

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

The CURRENT AMOUNT OF DATA READ field indicates the amount of data physically read from the medium

during this load of the medium. This value is expressed in increments of 1048576 bytes (e.g., a value of one

means 1048576 bytes, two means 2097152 bytes, etc.).

The CURRENT READ RETRIES COUNT field indicates the number of times a read retry was performed during

this load of the medium. The exact definition of the error counters is not part of this standard. This counter should

not be used to compare products because the products may define errors differently.

The PREVIOUS AMOUNT OF DATA WRITTEN field indicates the amount of data physically written to the medium

during the previous medium load. This value is expressed in increments of 1048576 bytes (e.g., a value of one

means 1048576 bytes, two means 2097152 bytes, etc.).

The PREVIOUS WRITE RETRY COUNT field indicates the total number of write retries during the previous

medium load. The exact definition of the error counters is not part of this standard. This counter should not be

used to compare products because the products may define errors differently.

The PREVIOUS AMOUNT OF DATA READ field indicates the amount of data physically read from the medium

during the previous medium load. This value is expressed in increments of 1048576 bytes (e.g., a value of one

means 1048576 bytes, two means 2097152 bytes, etc.).

The PREVIOUS READ RETRIES COUNT field indicates the number of times a read retry was performed during

the previous medium load. The exact definition of the error counters is not part of this standard.

This counter should not be used to compare products because the products may define errors differently.

The TOTAL AMOUNT OF DATA WRITTEN field indicates the total amount of data physically written to the medium

since the last medium format. This value accumulates over the life of the medium but it is reset to zero after a

medium format. This value is expressed in increments of 1048576 bytes (e.g., a value of one means 1048576

bytes, two means 2097152 bytes, etc.).

The TOTAL WRITE RETRIES COUNT field indicates the total number of write retries since the last medium

format. This count accumulates over the life of the medium but it is reset to zero after a medium format. The exact

definition of the error counters is not part of this standard. This counter should not be used to compare products

because the products may define errors differently.

The TOTAL AMOUNT OF DATA READ field indicates the total amount of data physically read from the medium

since the last medium format. This value accumulates over the life of the medium but it is reset to zero after a

medium format. This value is expressed in increments of 1048576 bytes (e.g., a value of one means 1048576

bytes, two means 2097152 bytes, etc.).

The TOTAL READ RETRIES COUNT field indicates the number of times a read retry was performed since the last

medium format. The exact definition of the error counters is not part of this standard. This counter should not be

used to compare products because the products may define errors differently. This count accumulates over the life

of the medium but it is reset to zero after a medium format.

The LOAD COUNT field indicates the number of loads since the last medium format. This count accumulates over

the life of the medium but it is reset to zero after a medium format.

The TOTAL CHANGE PARTITION COUNT field indicates the number of times that switches between partitions

have been performed on the medium. This count accumulates over the life of the medium but it is reset to zero

after a medium format. This field is not supported and always will be set to ZERO.

The TOTAL PARTITION INITIALIZE COUNT field indicates the number of times that any of the partitions on the

medium have been erased. This count accumulates over the life of the medium but it is reset to zero after a

medium format. This field is not supported and always will be set to ZERO.

0341h PARTITION USAGE HISTORY: This attribute value provides statistical counters (Table 12-9) for the

partition specified by the PARTITION NUMBER field in the CDB. If a field is not used, it will be set to ZERO.

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-7

12.APPENDIX E: Medium Auxiliary Memory Attribute

Table 12-9: PARTITION USAGE HISTORY attribute format

Bit

Byte

(MSB)

CURRENT AMOUNT OF DATA WRITTEN

CURRENT WRITE RETIES COUNT

CURRENT AMOUNT OF DATA READ

CURRENT READ RETRIES COUNT

PREVIOUS AMOUNT OF DATA WRITTEN

PREVIOUS WRITE RETRIES COUNT

PREVIOUS AMOUNT OF DATA READ

PREVIOUS READ RETRIES COUNT

TOTAL AMOUNT OF DATA WRITTEN

TOTAL WRITE RETRIES COUNT

TOTAL AMOUNT OF DATA READ

TOTAL READ RETRIES COUNT

LOAD COUNT

(LSB)

(MSB)

CHANGE PARTITION COUNT

PARTITION INITIALIZE COUNT

The CHANGE PARTITION COUNT field indicates the number of times that switches to the partition specified by

the PARTITION NUMBER field in the CDB have been performed on the medium. This count accumulates over the

life of the medium but it is reset to zero after a medium format.

The PARTITION INITIALIZE COUNT field indicates the number of times that the partition specified by the

PARTITION NUMBER field in the CDB has been initialized. This count accumulates over the life of the medium but

it is reset to zero after a medium format.

12-8

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

12.4.4. Standard Medium Type Attributes

Medium type attributes (Table 12-10) are hard coded into the medium auxiliary memory at manufacture time. All

supported medium type attribute will have a status of read only.

Table 12-10: Medium Common Attributes

Attribute Name

#Bytes

Format

ASCII

Binary

ASCII

Binary

ASCII

Binary

0400h

0401h

0402h

0403h

0404h

0405h

0406h

0407h

0408h

0409h

040Ah – 07FFh

MEDIUM MANUFACTURER

MEDIUM SERIAL NUMBER

MEDIUM LENGTH

MEDIUM WIDTH

ASSIGNING ORGANIZATION

MEDIUM DENSITY CODE

MEDIUM MANUFACTURE DATE

MAM CAPACITY

MEDIUM TYPE

MEDIUM TYPE INFORMATION

Reserved

0400h MEDIUM MANUFACTURER: This attribute value contains eight bytes of ACSII data identifying the vendor

of the media.

Note: It is intended that the MEDIUM MANUFACTURER attribute provide a unique vendor identification of the

manufacturer of the media. In the absence of a formal registration procedure, T10 maintains a list of known vendor

identification codes in use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent

duplication of codes.

0402h MEDIUM LENGTH: This attribute value specifies the length of the medium in meters. A value of 00h

specifies that the length of the medium is undefined.

0403h MEDIUM WIDTH: This attribute value specifies the width of the medium supported by this density. This field

has units of tenths of millimeters. The value in this field will be rounded up if the fractional value of the actual value

is greater than or equal to 0.5. The MEDIUM WIDTH field may vary for a given density depending on the mounted

medium. A value of 00h specifies the width of the medium is undefined.

0404h ASSIGNING ORGANIZATION: This attribute value identifies the organization responsible for the

specifications defining the values in the MEDIUM DENSITY CODE attribute. The ASSIGNING ORGANIZATION

field willl contain a value listed in the vendor identification list.

The MEDIUM SERIAL NUMBER identifies the manufacturer’s serial number for the medium.

The MEDIUM DENSITY CODE is the same numeric DENSITY CODE as reported in the SCSI Mode Block

Descriptor.

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-9

12.APPENDIX E: Medium Auxiliary Memory Attribute

Note: The Formatted Density Code ID 0006h, which is in the Device Common Attribute section and the Medium

Density Code ID 0405h, which is located in the Medium Common Attributes section, will need to be used in some

cases in conjunction in determining the media format.

0406h MEDIUM MANUFACTURE DATE: This attribute value identifies the date of manufacture of the medium.

The format is YYYYMMDD.

0407h MAM CAPACITY: This attribute value is the total capacity of the MAM, in bytes, at manufacture time. It

does not indicate the free space of an unused medium auxiliary memory because some of the medium auxiliary

memory space may be reserved for device-specific use making it inaccessible to the application client.

0408h MEDIUM TYPE and 0409h MEDIUM TYPE INFORMATION: These attribute values give information about

non-data media and other types of media. The MEDIUM TYPE INFORMATION attribute is interpreted according to

the type of medium indicated by the MEDIUM TYPE (Table 12-11).

Note: Depending of the hardware vendor, this attribute may not be hard coded into the MAM at manufacture time.

Table 12-11: MEDIUM TYPE and MEDIUM TYPE INFORMATION attributes

MEDIUM TYPE

00h

01h

02h-7Fh

80h

81h-FFh

Description

MEDIUM TYPE INFORMATION

Reserved

Maximum number of cleaning cycles permitted

Reserved

Data medium

Cleaning medium

Reserved

Write-once medium

Reserved

12.4.5. Standard Host Type Attributes

Application clients may use the WRITE ATTRIBUTE and READ ATTRIBUTE commands to maintain the attributes

shown in Table 12-12. All existent host type attributes will have a status of read/write.

Table 12-12: Host Common Attributes:

Attribute Name

APPLICATION VENDOR

APPLICATION NAME

APPLICATION VERSION

USER MEDIUM TEXT LABEL

DATE & TIME LAST WRITTEN

TEXT LOCALISATION IDENTIFIER

BARCODE

OWNING HOST TEXTUAL NAME

MEDIA POOL

PARTITION USER TEXT LABEL

LOAD/UNLOAD AT PARTITION

Reserved

#Bytes

160

Format

ASCII

Text

ASCII

Binary

ASCII

TEXT

ASCII

Binary

0800h

0801h

0802h

0803h

0804h

0805h

0806h

0807h

0808h

0809h

080Ah

080Bh – BFFh

0800h APPLICATION VENDOR: This attribute value contains eight bytes of ASCII data identifying the

manufacturer of the application client (e.g. class driver or backup program) that most recently sent a WRITE

ATTRIBUTE command to the drive while this medium auxiliary memory was accessible.

12-10

SONY AIT-5 drive SDX-1100V series Ver.1.0

12.APPENDIX E: Medium Auxiliary Memory Attribute

Note: It is intended that this field provide a unique vendor identification of the vendor who wrote the Host Common

attributes. In the absence of a formal registration procedure, T10 maintains a list of vendor identification codes in

use. Vendors are requested to voluntarily submit their identification codes to T10 to prevent duplication of codes.

0801h APPLICATION NAME: This attribute value contains the name of the application client.

0802h APPLICATION VERSION: This attribute value contains the version of the application client.

0803h USER MEDIUM TEXT LABEL: This attribute value is the user level identifier for the medium.

0804h DATE & TIME LAST WRITTEN: This attribute value contains when the application client last wrote to the

MAM. The format for the string is YYYYMMDDHHMM using a 24-hour time format

Note: The application must update the “Date and Time Last Written” field any time the host attributes contents are

modified.

0805h TEXT LOCALISATION IDENTIFIER: This attribute value defines the character set used for attributes with a

text format (Table 12-13).

Table 12-13: TEXT LOCALISATION IDENTIFIER

Value

00h

01h

02h

03h

04h

05h

06h

07h

08h

09h

0Ah

0Bh – 7Fh

80h

Meaning

No code specified (ASCII)

ISO/IEC 8859-1 (Europe, Latin America)

ISO/IEC 8859-2 (Eastern Europe)

ISO/IEC 8859-3 (SE Europe/miscellaneous)

ISO/IEC 8859-4 (Scandinavia/Baltic)

ISO/IEC 8859-5 (Cyrillic)

ISO/IEC 8859-6 (Arabic)

ISO/IEC 8859-7 (Greek)

ISO/IEC 8859-8 (Hebrew)

ISO/IEC 8859-9 (Latin 5)

ISO/IEC 8859-10 (Latin 6)

Reserved

ISO/IEC 10646 (UCS-2BE)

ISO/IEC 10646–1 (UTF-8)

Reserved

81h

82h – FFH

0806h BARCODE: This attribute value is the contents of a barcode associated with the medium in the MAM.

0807h OWNING HOST TEXTUAL NAME: This attribute value indicates the host from which that USER MEDIUM

TEXT LABEL originates.

0808h MEDIA POOL: This attribute value indicates the media pool to which this medium belongs.

0809h PARTITION USER TEXT LABEL: This attribute value is a user level identifier for the partition specified by

the PARTITION NUMBER field in the CDB.

080Ah LOAD/UNLOAD AT PARTITION: This attribute value indicates whether the media can be loaded or

unloaded at the Partition specified by the PARTITION NUMBER field in the CDB. If loads and unloads are enabled

for the specified partition, the value of this parameter will be one. If loads/unloads are not enabled for the specified

partition, the value of this parameter will be zero. All other attribute values are reserved. If LOAD/UNLOAD AT

PARTITION is disabled, then loads and unloads are performed at the beginning of the media instead of at the

specified partition. If this attribute is in the nonexistent state then the default action will be to load/unload at the

beginning of media. This field is not supported.

SONY AIT-5 drive SDX-1100V series Ver.1.0

12-11

12.APPENDIX E: Medium Auxiliary Memory Attribute

This page intentionally left blank.

12-12

SONY AIT-5 drive SDX-1100V series Ver.1.0

13.Appendix F: AIT based WORM system

13. APPENDIX F: AIT based WORM system

13.1. Important Notice

(1) AIT WORM cartridges come equipped with Remote MIC.

(2) A new AIT WORM cartridge can be initialized to use either AIT native mode.

(3) WORM features are supported in AIT tape drives with firmware revision level 0103 or later.

13.2. Write-Protected (WP) Bit in Mode Sense Data

If the AIT-5 WORM cartridge that the write-protected tab set to “Rec” is inserted, the WP bit is not used in WORM

mode. The WP bit will be set to ZERO.

If the AIT-5 WORM cartridge the write-protected tab set to “Safe” is inserted, the SDX-1100V can not write to the

tape. The WP bit will be set to ONE.

When the AIT-3 WORM or AIT-4 WORM cartridge is inserted, the SDX-1100V can not write to these tapes. The

WP bit will be set to ONE.

13.3. How to detect a WORM cartridge.

The WORM bit of AIT Device Configuration Page (31h) is used to indicate the presence of a WORM media.

Page 31h: AIT Device Configuration Page

Bit

Byte

Reserved

Page Code (31h)

Page Length (8)

ULP PRT

SPAN (0Ah)

AIT

DEV

ABS

PNJ

SYSLOG

MIC

WORM

Reserved

WORM

Capable

Reserved

13.4. How to initialize a WORM cartridge.

A new WORM cartridge can be initialized in two ways:

1. Mode Select Operation

2. Write Operation

Note: when using Write Operation (option 2), a new WORM cartridge will be initialized as one partition AIT native

mode.

SONY AIT-5 drive SDX-1100V series Ver.1.0

13-1

13.Appendix F: AIT based WORM system

How to initialize a WORM cartridge to AIT Native mode.

1Partition

Mode Sense (Page 31h)

Mode Select (Page 31h)

AIT=1, DEVICE=1, ABS=1, SysLogAlive=11, Span=0Ah

Mode Select (Page 11h)

Set IDP bit to 1. Additional Partition=0.

13.5. How to handle the WORM cartridge in the drive.

1. DATA READ: There is no restriction when reading data in WORM mode.

2. DATA WRITE: Any attempt to overwrite existing data will be rejected with a Check Condition status and

sense data.

● Write Projected Error: 07-27-00-07 (Sense Key, ASC, ASCQ, Run-time-error)

● Append Position Error: 03-27-04-f7

The AIT WORM drive will allow write operations when:

(1) Append Write Operation is allowed only at End-Of-Data (EOD) area. Prior to an Append Write Operation,

several commands can be used to position the drive at EOD area:

● Space to EOD (space code 3)

● Space to last record (could be a block, File-mark, Set-mark)

● Locate to last block

● Read until EOD

For example:

Space EOD

Write

Write End

Yes

END

13-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

14.Appendix G: CD-ROM Device Emulation for Disaster Recovery

14. APPENDIX G: CD-ROM Device Emulation for

Disaster Recovery

14.1. Overview

This chapter will outline the Disaster Recovery Specifications for Sony AIT drive and autoloader. While in Disaster

Recovery mode, the drive behaves as a bootable CD-ROM device. Using the DR tape image, users will be able to

do a complete restore of the system.

14.2. Creating Disaster Recovery Tape

The Disaster Recovery tape must have the CD-ROM image of the operating system written first on the tape. This

image is formatted in El Torito CD-ROM Boot Specification.

Disaster Recovery Tape can be created using Veritas BackupExec Software. Please follow instructions of Veritas

BackupExec to create the DR tape. After the tape has been created, the tape must be write-protected to be

considered DR tape.

14.3. Configuring The Drive For Disaster Recovery Operation

To enter DR mode, the tape drive needs to be configured with the following steps:

1. Turn on the DIP Switch 1 [DR Mode Enable] of the drive.

2. Insert a write-protected DR tape and wait for the drive to complete the loading sequence.

3. Observe the simultaneous flashing all LED. This is the DR standby mode. The drive will remain in this

mode for a period of 15 seconds. Powering down the drive during this 15 seconds window will trigger the

DR mode. The drive will exit the DR standby mode after 15 seconds and resume normal mode of

operation. A SCSI reset will force the drive to exit the DR standby mode and service the SCSI reset.

4. Upon power up, the drive will enter the DR mode. Observe the simultaneous flashing LEDs of TAPE

MORTION and CLEANING REQUEST. While in DR mode, a SCSI RESET will be treated as soft reset

and will not take the drive out of DR mode.

Also, the drive will enter DR mode upon receiving a Mode Select command with Page Code 0x3C.

14.4. Exiting DR Mode

Ejecting the media via the front panel button or a SCSI UNLOAD command will exit the DR mode and restore the

drive to normal operation. A SCSI Mode Select command with Page Code 0x3C and DREnable bit of zero will also

exit the drive out of DR mode. On the autoloader, the DR mode indication on the 4th line of the LCD will disappear

once the drive exits from DR mode.

14.5. Supported CD-ROM DR Command Set

14.5.1. Inquiry (12h)

5.1.1. Peripheral Device Type = 0x05 (CD-ROM)

5.1.2. Byte 43 = 0x24 (ASCII “$”)

5.1.3. Byte 44-48 = “DR-10”

14.5.2. Read 10 (28h)

This command shall only be supported in DR mode. Execution of this command is in effect a translation of a

LOCATE command and READ 6 (0x08) command executing in sequence.

14.5.3. Read Capacity (0x25)

This command shall only be supported in DR mode.

5.3.1.

5.3.2.

Returned LBA (Capacity) = 0004B000h (~640 Mbytes)

Block Length = 00000800h (2048 Bytes)

SONY AIT-5 drive SDX-1100V series Ver.1.0

14-1

14.Appendix G: CD-ROM Device Emulation for Disaster Recovery

14.5.4. Read TOC (0x43)

This command shall only be supported in DR mode.

5.4.1.

Returned Data (20 bytes)

00 12 01 01 00 14 01 00 00 00 00 00 00 14 AA 00 00 04 B0 00

14.5.5. Mode Sense/Select Page Code 0x3C

Table 14-1: DR Mode Entry/Exit Page

Bit

Byte

Reserved Reserved

Page Code = 3Ch

Page Length = 04h

Reserved

DREnable

Reserved

DREnable: This bit reflects the status of the DR mode. When the drive enters DR mode, DREnable bit will be set

to 1. This bit shall be reset to zero when the drive exits the DR mode. A Mode Select of Page Code 0x3C with

setting of DREnable bit will force the drive to enter DR mode. With DREnable bit set to zero, the drive will exit the

DR mode. Setting this bit to 1 when the tape is not write-protected shall be rejected with a Check Condition of

Illegal Request (0x05) and ASC of 26h and ASCQ of 02h.

14.6. Reset Handling

While in DR mode, a SCSI reset shall not take the drive out of DR mode. A powered cycle will take the drive out

of DR mode and return the drive to normal operation.

14-2

SONY AIT-5 drive SDX-1100V series Ver.1.0

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