Fujitsu MAB3045 User Manual

MAA3182 SERIES  
MAB3091, MAB3045 SERIES  
MAC3091, MAC3045 SERIES  
DISK DRIVES  
PRODUCT MANUAL  
C141-E035-03EN  
FOR SAFE OPERATION  
Handling of This manual  
This manual contains important information for using this product. Read thoroughly before  
using the product. Use this product only after thoroughly reading and understanding  
especially the section “Important Alert Items” in this manual. Keep this manual handy, and  
keep it carefully.  
FUJITSU makes every effort to prevent users and bystanders from being injured or from  
suffering damange to their property. Use the product according to this manual.  
Functional Limitations  
There may be certain functional limitations concerning the specifications and functions of the  
products covered by this manual depending on the equipment version, especially concerning  
the following functions.  
Versions in which there functions can be used will be communicated through  
“ENGINEERING CHANGE REQUEST/NOTICE”, issued by Fujitsu.  
Function  
Equipment Version Which Supports These Functions  
Equipment EPROM Standard INQUIRY Data Product  
Version No. Version Revision (ASCII)  
No.  
READ RAM Command  
WRITE RAM Command  
These commands cannot be used in the current version.  
(Proceed to the Copyright Page)  
C141-E035-03EN  
iii  
Related Standards  
Specifications and functions of products covered by this manual comply with the following  
standards.  
Standard (Text) No.  
Name  
Enacting Organization  
American National  
ANSI X3.131-1986  
American National Standard for  
Information Systems—Small Computer Standards Institute  
System Interface (SCSI)  
(ANSI)  
ANSI X3.131-1994  
X3T9.2/85-52 Rev 4.B  
X3T9.2 855D Rev 12  
X3T10/10T1D Rev 6  
American National Standard for  
Information Systems—Small Computer Standards Institute  
System Interface - 2(SCSI-2) (ANSI)  
American National  
COMMON COMMAND SET (CCS) American National  
of the Small Computer  
System Interface (SCSI)  
Standards Institute  
(ANSI)  
WORKING DRAFT Information  
Technology SCSI-3 Parallel Interface Standards Institute  
(ANSI)  
American National  
Dfaft proposed  
American National  
Standards Institute  
(ANSI)  
American National Standard for  
Information Systems—SCSI-3  
Fast-20 Parallel Interface  
(Fast 20-SCSI)  
All Right Reserved, Copyright © 1997, 1998 Fujitsu Limited  
iv  
C141-E035-03EN  
PREFACE  
This manual describes the MAA3182xx (hereafter, MAA31xxxx), MAB3091xx, MAB3045xx  
(hereafter, MAB30xxxx), MAC3091xx, MAC3045xx (hereafter, MAC30xxxx) series 3.5-inch fixed  
disk drives with an embedded SCSI controller.  
This manual details the specifications and functions of the above disk drive, and gives the requirements  
and procedures for installing it into a host computer system.  
This manual is written for users who have a basic understanding of fixed disk drives and their use in  
computer systems. The MANUAL ORGANIZATION section describes organization and scope of this  
manual. The need arises, use the other manuals.  
Chapter 1  
GENERAL DESCRIPTION  
This chapter introduces the MAA31xxxx, MAB30xxxx and MAC30xxxx series disk drives and  
discusses their standard features, hardware, and system configuration.  
Chapter 2  
SPECIFICATIONS  
This chapter gives detailed specifications of the MAA31xxxx, MAB30xxxx and MAC30xxxx series  
disk drives and their installation environment.  
Chapter 3  
DATA FORMAT  
This chapter describes the data structure of the disk, the address method, and what to do about media  
defects.  
Chapter 4  
INSTALLATION REQUIREMENTS  
This chapter describes the basic physical and electrical requirements for installing MAA31xxxx,  
MAB30xxxx and MAC30xxxx series disk drives.  
Chapter 5  
INSTALLATION  
This chapter explains how to install MAA31xxxx, MAB30xxxx and MAC30xxxx series disk drives. It  
includes the notice and procedures for setting device number and operation modes, mounting the disk  
drive, connecting the cables, and confirming drive operation.  
Chapter 6  
DIAGNOSIS and MAINTENANCE  
This chapter describes the automatic diagnosis, and maintenance of the MAA31xxxx, MAB30xxxx  
and MAC30xxxx series disk drive.  
APPENDIX  
A to E  
The appendixes give supplementary information, including the locations of mounting setting terminals  
and connectors, a list of setting items, the signal assignments of interface connectors, lists of model  
names and product numbers, and SCSI interface functions.  
The model numbers have a suffix that describes the electrical requirements of the SCSI interface  
between host system and disk drive, the data formatted at the factory and device type.  
C141-E035-03EN  
v
CONVENTIONS  
This manual uses the following conventions for alerts to prevent physical or property damages to users  
or by standards.  
DANGER  
DANGER indicates that personal injury will occur if the user does not perform the procedure  
correctly.  
WARNING  
WARNING indicates that personal injury could occur if the user does not perform the procedure  
correctly.  
CAUTION  
CAUTION indicates that either minor or moderate personal injury may occur if the user does not  
perform the procedure correctly.  
NOTICE  
NOTICE indicates that inconvenience to the user such as damages to the product, equipment, data,  
and/or other property may occur if the user does not pay attention or perform the procedure correctly.  
IMPORTANT  
IMPORTANT indicates information that the helps the user use the product more effectively.  
Indicates  
This manual indicates;  
Decimal number: Indicates as it is.  
Hexadecimal number: Indicates as X’17B9’, 17B9h, or 17B9H  
Binary number: Indicates as “010”  
vi  
C141-E035-03EN  
DISCLAIMER  
Failure of the MAA31xxxx, MAB30xxxx and MAC30xxxx series intelligent disk drive is defined as a  
failure requiring adjustments, repairs, or replacement. Fujitsu is not responsible for drive failures  
caused by misuse by the user, poor environmental conditions, power trouble, host problems, cable  
failures, or any failure not caused by the drive itself.  
The suffix of the model name of the disk drive varies depending on the electrical requirements,  
capacity, and data format at factory shipment of the SCSI, i.e., the interface for connecting the three  
device types or host system and the disk drives (Note 1). However, in this manual, the typical model  
names (Note 2) are used unless otherwise noted. These disk drives may be called intelligent disk  
drives (IDD), drives, or devices in this manual.  
Note 1:  
Model names  
M AA 3 182 SC  
Interface types  
SP: Single-Ended, 16-bit SCSI  
SC: Single-Ended, 16-bit SCSI SCA2 connector  
Formatted capacity (100 MB units)  
Disk size  
Type  
3: 3.5 inch  
AA: 1.6-inch height (7,200rpm)  
AB: 1-inch height (7,200rpm)  
AC: 1-inch height (10,033rpm)  
Note 2:  
Type model name  
Type model  
name  
Model name  
MAA3182  
MAB3091  
MAB3045  
MAC3091  
MAC3045  
MAA3182SP, MAA3182SC  
MAB3091SP, MAB3091SC  
MAB3045SP, MAB3045SC  
MAC3091SP, MAC3091SC  
MAC3045SP, MAC3045SC  
C141-E035-03EN  
vii  
MANUAL ORGANIZATION  
PRODUCT  
MANUAL  
1. General Description  
2. Specifications  
3. Data Format  
(This manual)  
4. Installation Requirements  
5. Installation  
6. Diagnostics and Maintenance  
SCSI Physical  
Interface  
1. SCSI Bus  
2. SCSI Message  
Specifications  
3. SCSI Bus Error Recovery Processing  
SCSI Logical  
Interface  
Specifications  
1. Command Processing  
2. Data Buffer Management  
3. Command Specification  
4. Sense Data and error Recovery Procedure  
5. Disk Medium Management  
Maintenance  
Manual  
1. Specifications and Equipment Configuration  
2. Maintenance and Diagnostic  
3. Error Analysis  
4. Removal and Replacement Procedures  
5. Principle of Operation  
viii  
C141-E035-03EN  
CONTENTS  
page  
CHAPTER 1 GENERAL DESCRIPTION .......................................................................... 1-1  
1.1  
1.2  
1.3  
Standard Features ........................................................................................................... 1-2  
Hardware Structure......................................................................................................... 1-5  
System Configuration..................................................................................................... 1-10  
CHAPTER 2 SPECIFICATIONS......................................................................................... 2-1  
2.1 Hardware Specifications................................................................................................. 2-1  
2.1.1 Model name and part number......................................................................................... 2-1  
2.1.2 Function specifications................................................................................................... 2-2  
2.1.3 Environmental specifications.......................................................................................... 2-4  
2.1.4 Error rate......................................................................................................................... 2-5  
2.1.5 Reliability....................................................................................................................... 2-5  
2.2  
SCSI Function Specifications......................................................................................... 2-7  
CHAPTER 3 DATA FORMAT ............................................................................................ 3-1  
3.1 Data Space...................................................................................................................... 3-1  
3.1.1 Cylinder configuration.................................................................................................... 3-1  
3.1.2 Alternate spare area ........................................................................................................ 3-5  
3.1.3 Track format ................................................................................................................... 3-6  
3.1.4 Sector format .................................................................................................................. 3-8  
3.1.5 Format capacity .............................................................................................................. 3-10  
3.2  
3.3  
Logical Data Block Addressing...................................................................................... 3-11  
Defect Management........................................................................................................ 3-12  
3.3.1 Defect list ....................................................................................................................... 3-12  
3.3.2 Alternate block allocation............................................................................................... 3-12  
CHAPTER 4 INSTALLATION REQUIREMENTS .......................................................... 4-1  
4.1  
Mounting Requirements................................................................................................. 4-1  
4.1.1 External dimensions ....................................................................................................... 4-1  
4.1.2 Mounting........................................................................................................................ 4-6  
4.1.3 Notes on mounting ......................................................................................................... 4-6  
4.2  
Power Supply Requirements .......................................................................................... 4-11  
C141-E035-03EN  
ix  
4.3  
Connection Requirements .............................................................................................. 4-14  
4.3.1 Single-ended 16-bit SCSI model (MAA31xxSP, MAB30xxSP, MAC30xxSP) ............ 4-14  
4.3.2 SCA2 type SCSI model (MAA31xxSC, MAB30xxSC, MAC30xxSC)......................... 4-22  
4.3.3 Cable connector requirements ........................................................................................ 4-24  
4.3.4 External operator panel................................................................................................... 4-28  
CHAPTER 5 INSTALLATION............................................................................................ 5-1  
5.1  
5.2  
5.3  
Notes on Handling Drives .............................................................................................. 5-1  
Connections.................................................................................................................... 5-3  
Setting Terminals............................................................................................................ 5-5  
5.3.1 SCSI ID setting............................................................................................................... 5-7  
5.3.2 Each mode setting .......................................................................................................... 5-8  
5.3.3 Write protect, terminating resistor setting....................................................................... 5-9  
5.3.4 Mode settings ................................................................................................................. 5-10  
5.4  
Mounting Drives ............................................................................................................ 5-11  
5.4.1 Check before mounting .................................................................................................. 5-11  
5.4.2 Mounting procedures...................................................................................................... 5-11  
5.5  
5.6  
Connecting Cables.......................................................................................................... 5-12  
Confirming Operations after Installation and Preparation for use .................................. 5-13  
5.6.1 Confirming initial operations.......................................................................................... 5-13  
5.6.2 Checking SCSI connection............................................................................................. 5-15  
5.6.3 Formatting ...................................................................................................................... 5-18  
5.6.4 Setting parameters .......................................................................................................... 5-20  
5.7  
Dismounting Drives ....................................................................................................... 5-24  
CHAPTER 6 DIAGNOSTICS AND MAINTENANCE...................................................... 6-1  
6.1 Diagnostics..................................................................................................................... 6-1  
6.1.1 Self-diagnostics .............................................................................................................. 6-1  
6.1.2 Test programs................................................................................................................. 6-4  
6.2  
Maintenance Information ............................................................................................... 6-5  
6.2.1 Maintenance requirements.............................................................................................. 6-5  
6.2.2 Revision numbers........................................................................................................... 6-7  
APPENDIX A LOCATIONS OF CONNECTORS, SETTING TERMINALS, AND  
TERMINATING RESISTORS...................................................................... A-1  
x
C141-E035-03EN  
A.1  
A.2  
Locations of Connectors and Setting Terminals  
(MAx3xxxSC: SCA2 type 16-bit SCSI)......................................................................... A-2  
Locations of Connectors and Setting Terminals  
(MAx3xxxSP: single-ended type 16-bit SCSI)............................................................... A-3  
APPENDIX B SETTING TERMINALS................................................................................ B-1  
B.1 Setting Terminals (MAx3xxxSP: Single-ended 16-bit SCSI)......................................... B-2  
APPENDIX C CONNECTOR SIGNAL ALLOCATION .................................................... C-1  
C.1  
C.2  
SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI......................................... C-2  
SCSI Connector Signal Allocation: Single-ended type 16-bit SCSI.............................. C-3  
APPENDIX D MODEL NAMES AND PRODUCT NUMBERS ......................................... D-1  
D.1 Model Names and Product Numbers.............................................................................. D-2  
APPENDIX E SCSI INTERFACE FUNCTIONS ................................................................. E-1  
E.1 SCSI interface function specifications............................................................................ E-2  
Index............................................................................................................................................ IN-1  
C141-E035-03EN  
xi  
FIGURES  
page  
1.1  
1.2  
1.3  
1.4  
1.5  
1.6  
1.7  
1.8  
3.1  
3.2  
3.3  
3.4  
3.5  
3.6  
3.7  
3.8  
4.1  
4.2  
4.3  
4.4  
4.5  
4.6  
4.7  
4.8  
4.9  
4.10  
4.11  
4.12  
4.13  
4.14  
4.15  
4.16  
MAA31xxSC outer view................................................................................................ 1-5  
MAA31xxSP outer view ................................................................................................ 1-6  
MAB30xxSC outer view ................................................................................................ 1-6  
MAB30xxSP outer view................................................................................................. 1-7  
MAC30xxSC outer view ................................................................................................ 1-7  
MAC30xxSP outer view................................................................................................. 1-7  
Disk/head configuration ................................................................................................. 1-8  
System configuration...................................................................................................... 1-10  
Cylinder configuration.................................................................................................... 3-2  
Spare area in cylinders.................................................................................................... 3-5  
Alternate cylinder ........................................................................................................... 3-5  
Track format ................................................................................................................... 3-6  
Track skew/cylinder skew .............................................................................................. 3-7  
Sector format .................................................................................................................. 3-8  
Alternate block allocation by FORMAT UNIT command ............................................. 3-14  
Alternate block allocation by REASSIGN BLOCKS command..................................... 3-15  
External dimensions (MAA31xxSC).............................................................................. 4-2  
External dimensions (MAA31xxSP) .............................................................................. 4-3  
External dimensions (MAB30xxSC, MAC30xxSC) ...................................................... 4-4  
External dimensions (MAB30xxSP, MAC30xxSP)....................................................... 4-5  
IDD orientation............................................................................................................... 4-6  
Mounting frame structure ............................................................................................... 4-7  
Limitation of side-mounting........................................................................................... 4-7  
Surface temperature measurement points (MAA31xxxx/MAB30xxxx/MAC30xxxx) .. 4-8  
Service clearance area..................................................................................................... 4-9  
Air pressure adjustment hole .......................................................................................... 4-10  
Current waveform (+12 VDC)........................................................................................ 4-11  
Power on/off sequence (1).............................................................................................. 4-11  
Power on/off sequence (2).............................................................................................. 4-12  
Power on/off sequence (3).............................................................................................. 4-12  
AC noise filter (recommended) ...................................................................................... 4-13  
Connectors and terminals location (single-ended 16-bit SCSI) ...................................... 4-14  
xii  
C141-E035-03EN  
4.17  
4.18  
4.19  
4.20  
4.21  
4.22  
4.23  
4.24  
4.25  
4.26  
4.27  
4.28  
5.1  
16-bit SCSI interface connector...................................................................................... 4-15  
Power supply connector (16-bit SCSI model) ................................................................ 4-15  
External operator panel connector (CN1) ....................................................................... 4-16  
External operator panel connector (CN7) ....................................................................... 4-17  
16-bit SCSI ID external input......................................................................................... 4-18  
Output signal for external LED ...................................................................................... 4-19  
Cables connection (16-bit SCSI model) ......................................................................... 4-21  
Connectors and terminals location of SCA2 type SCSI model....................................... 4-22  
SCA2 type SCSI connector ............................................................................................ 4-23  
SCSI cable connector...................................................................................................... 4-25  
SCSI cable termination................................................................................................... 4-27  
External operator panel circuit example (MAx3xxxSP) ................................................. 4-28  
SCSI bus connections..................................................................................................... 5-3  
MAx3xxxSP setting terminals position.......................................................................... 5-5  
Setting terminals (MAx3xxxSP)..................................................................................... 5-6  
Checking the SCSI connection (A)................................................................................. 5-16  
Checking the SCSI connection (B)................................................................................. 5-17  
Revision label................................................................................................................. 6-7  
Indicating revision numbers ........................................................................................... 6-8  
Locations of connectors and setting terminals  
5.2  
5.3  
5.4  
5.5  
6.1  
6.2  
A.1  
(MAx3xxxSC, SCA2 type 16-bit SCSI)............................................................................ A-2  
Locations of connectors and setting terminals  
A.2  
(MAx3xxxSP, single-ended type 16-bit SCSI) .................................................................. A-3  
C141-E035-03EN  
xiii  
TABLES  
page  
2.1  
2.2  
2.3  
3.1  
3.2  
3.3  
3.4  
4.1  
4.2  
4.3  
4.4  
4.5  
5.1  
5.2  
5.3  
5.4  
5.5  
Function specifications................................................................................................... 2-2  
Environmental/power requirements................................................................................ 2-4  
SCSI function specifications........................................................................................... 2-7  
Zone layout and track capacity (MAA31xxxx) .............................................................. 3-3  
Zone layout and track capacity (MAB30xxxx) .............................................................. 3-3  
Zone layout and track capacity (MAC30xxxx) .............................................................. 3-3  
Format capacity .............................................................................................................. 3-10  
Surface temperature check point..................................................................................... 4-8  
External inputs for operating terminating resistor (16-bit single-ended type) ................ 4-20  
Recommended components for connection.................................................................... 4-24  
Total cable length of SCSI cable .................................................................................... 4-26  
SCSI cable requirements................................................................................................. 4-26  
SCSI ID setting (single-ended 16-bit SCSI model: MAx3xxxSP).................................. 5-7  
Setting SCSI terminal power supply (single-ended 16-bit SCSI model: MAx3xxxSP) . 5-8  
Motor start mode setting (single-ended 16-bit SCSI model: MAx3xxxSP) ................... 5-8  
Write protect setting (single-ended 16-bit SCSI model: MAx3xxxSP) .......................... 5-9  
Setting of connection of terminating resistor on SCSI interface  
(single-ended 16-bit SCSI model: MAx3xxxSP) ........................................................... 5-9  
Default mode settings (by CHANGE DEFINITION command)..................................... 5-10  
Setting check list (MAx3xxxSP) .................................................................................... 5-11  
Self-diagnostic functions ................................................................................................ 6-1  
Setting terminal: CN6 (MAx3xxxSP)............................................................................ B-2  
Setting terminal: CN7 (MAx3xxxSP)............................................................................ B-3  
SCSI connector (SCA2 type, 16-bit SCSI): CN1........................................................... C-2  
SCSI connector (single-ended type 16-bit SCSI): CN1................................................. C-3  
MAA, MAB and MAC series model names and product numbers ................................ D-2  
SCSI interface function specifications............................................................................ E-2  
5.6  
5.7  
6.1  
B.1  
B.2  
C.1  
C.2  
D.1  
E.1  
xiv  
C141-E035-03EN  
CHAPTER 1  
GENERAL DESCRIPTION  
1.1 Standard Features  
1.2 Hardware Structure  
1.3 System Configuration  
This chapter describes the feature and configuration of the intelligent disk drives (IDD).  
IDDs are high performance large capacity 3.5-inch fixed disk drives with an embedded SCSI  
controller.  
The interface between the IDD and host system is based on SCSI (Small Computer System Interface)  
standard [ANSI X3.131 - 1986: Small Computer System Interface (SCSI), ANSI X3.131-1994: Small  
Computer System Interface - 2 (SCSI-2)].  
The flexibility and expandability of the SCSI, as well as the powerful command set of the IDD, allow  
the user to construct a high-performance reliable disk subsystem with large storage capacity.  
C141-E035-01EN  
1 - 1  
1.1  
Standard Features  
(1)  
Compactness  
Since the SCSI controller circuit is embedded in the standard 3.5-inch fixed disk drive form  
factor, the IDD is extremely compact. The IDD can be connected directly to the SCSI bus of  
the host system .  
(2)  
(3)  
(4)  
SCSI/CCS standard  
The IDD provides not only SCSI basic functions but also the following features:  
·
·
·
·
Arbitration  
Disconnection/reselection  
Data bus parity  
Command set which meets the logical specification of the SCSI CCS (Common  
Command Set for Direct Access Device) requirements (Rev. 4.B)  
The SCSI commands can manipulate data through logical block addressing regardless of the  
physical characteristics of the disk drive. This allows software to accommodate future  
expansion of system functions.  
8-bit SCSI/16-bit SCSI  
The IDD has 16-bit data width (16-bit SCSI), which have the wide transfer function suitable  
for SCSI-3.  
·
·
8-bit SCSI: Up to eight SCSI devices can be connected on the same SCSI bus.  
16-bit SCSI: Up to 16 SCSI devices can be connected on the same SCSI bus.  
For the ultra SCSI model, number of connectable SCSI devices on the same SCSI bus is varied  
as follows.  
·
·
Up to 4 SCSI devices having capacitance of 25 pF: Cable length of up to 3.0 m.  
5 to 8 SCSI devices having capacitance of 25 pF: Cable length of up to 1.5 m  
High speed data transfer  
·
·
8-bit SCSI:  
The data transfer rate on the 8-bit SCSI bus is 6 MB/s maximum in  
asynchronous mode, 20 MB/s in synchronous mode.  
16-bit SCSI: The data transfer rate on the 16-bit SCSI bus is 12 MB/s maximum in  
asynchronous mode, 40 MB/s in synchronous mode.  
Such a high data transfer rate on the SCSI bus can be useful with the large capacity buffer in  
the IDD.  
1 - 2  
C141-E035-02EN  
Note:  
The maximum data transfer rate in asynchronous mode may be limited by the response  
time of initiator and the length of SCSI bus length. The maximum data transfer rate in  
synchronous mode on the single-ended SCSI bus may be limited by the cable length,  
transmission characteristics of the SCSI bus and the connected SCSI device number.  
(5)  
Continuous block processing  
The addressing method of data blocks is logical block address. The initiator can access data  
by specifying block number in a logically continuous data space without concerning the  
physical structure of the track or cylinder boundaries.  
The continuous processing up to [64K-1] blocks in a command can be achieved, and IDD can  
perform continuous read/write operation when processing data blocks on several tracks or cylinder.  
(6)  
512 KB programmable multi-segment data buffer  
Data is transferred between SCSI bus and disk media through the embedded 512 KB data  
buffer in the IDD. This buffer can be divided into maximum 16 areas. This feature provides  
the suitable usage environment for users.  
Since the initiator can control the disconnect/reconnect timing on the SCSI bus by specifying  
the condition of stored data to the data buffer or empty condition of the data buffer, the  
initiator can perform the effective input/output operations with utilizing high data transfer  
capability of the SCSI bus regardless of actual data transfer rate of the disk drive.  
(7)  
(8)  
(9)  
Read-ahead cache feature  
After executing the READ command, the IDD reads automatically and stores (prefetches) the  
subsequent data blocks into the data buffer (Read-ahead caching).  
The high speed sequential data access can be achieved by transferring the data from the data buffer  
without reaccessing the disk in case the subsequent command requests the prefetched data blocks.  
Command queuing feature  
The IDD can queue maximum 128 commands, and optimizes the issuing order of queued  
commands by the reordering function. This feature realizes the high speed processing.  
Recordering algorithm is adopted to prevent a specific command from staying in a queue for  
more than 3 seconds.  
Reserve and release functions  
The IDD can be accessed exclusively in the multi-host or multi-initiator environment by using  
the reserve and release functions.  
C141-E035-03EN  
1 - 3  
(10)  
Error recovery  
The IDD can try to recover from errors in SCSI bus or the disk drive using its powerful retry  
processing. If a recoverable data check occurs, error-free data can be transferred to the  
initiator after being corrected in the data buffer. The initiator software is released from the  
complicated error recover processing by these error recovery functions of the IDD.  
(11)  
(12)  
(13)  
Automatic alternate block reassignment  
If a defective data block is detected during read, the IDD can automatically reassign its  
alternate data block.  
Programmable data block length  
Data can be accessed in fixed-block length units. The data block length is programmable, and  
can at initializing with a multiple of two for the 512 to 528 bytes.  
Defective block slipping  
A logical data block can be reallocated in a physical sequence by slipping the defective data  
block at formatting. This results in high speed contiguous data block processing without a  
revolution delay due to defective data block.  
(14)  
(15)  
High speed positioning  
A rotary voice coil motor achieves fast positioning.  
Large capacity  
A large capacity can be obtained from 3.5-inch disk drives by dividing all cylinders into  
several partitions and changing the recording density on each partition (constant density  
recording). The disk subsystem with large capacity can be constructed in the good space  
efficiency.  
(16)  
(17)  
Start/Stop of spindle motor  
Using the SCSI command, the host system can start and stop the spindle motor.  
Diagnosis  
The IDD has a diagnostic capability which checks internal controller functions and drive  
operations to facilitate testing and repair.  
1 - 4  
C141-E035-03EN  
(18)  
(19)  
(20)  
1.2  
Low power consumption  
By using highly integrated LSI components, the power consumption of the IDD is very low,  
and this enables the unit to be used in wide range of environmental conditions.  
Low noise and low vibration  
Approx. 4.2 bels for the IDD. This makes it ideal for office use. The IDD has rubber  
vibration isolators, which minimize the transfer of vibration.  
Microcode downloading  
The IDD implements the microcode download feature.  
maintainability of the IDD and function enhancing.  
This feature achieves easy  
Hardware Structure  
An outer view of the IDD is given in Figures 1.1 to 1.4. The IDD is composed of the disk,  
head, spindle motor, hermetically sealed disk enclosure (DE) with actuator and air circulation  
filter, as well as read/write pre-amp with the print card unit (PCA) of the controller.  
Figure 1.1 MAA31xxSC outer view  
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1 - 5  
Figure 1.2 MAA31xxSP outer view  
Figure 1.3 MAB30xxSC outer view  
1 - 6  
C141-E035-02EN  
Figure 1.4 MAB30xxSP outer view  
Figure 1.5 MAC30xxSC outer view  
Figure 1.6 MAC30xxSP outer view  
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1 - 7  
(1)  
Disks  
The disks have an outer diameter of 95 mm (3.74 inch) and inner diameter of 25 mm (0.98  
inch). The disks are good for at least 10,000 contact starts and stops. Each model contains  
following number of disks.  
MAA3182:10  
MAB3091, MAC3091:5  
MAB3045, MAC3045:3  
(2)  
Heads  
The MR (Magnet - Resistive) of the CSS (contact start/stop) type heads are in contact with the  
disks when the disks are not rotating, and automatically float when the rotation is started.  
Figure 1.7 shows the configuration of disks and heads  
MAA3182  
MAB3091, MAC3091  
MAB3045, MAC3045  
0
1
0
1
0
1
2
3
4
5
6
2
3
4
5
6
7
8
9
2
3
4
7
12  
13  
14  
15  
16  
17  
18  
Head No.  
Figure 1.7 Disk/head configuration  
(3)  
Spindle motor  
The disks are rotated by a direct-drive hall-less DC motor. The motor speed is controlled by a  
feedback circuit using the counter electromotive current to precisely maintain the speed at  
±0.5% of the specified speed.  
1 - 8  
C141-E035-03EN  
(4)  
Actuator  
The actuator, which uses a rotary voice coil motor (VCM), consumes little power and  
generates little heat. The head assembly at the end of the actuator arm is controlled and  
positioned via feedback of servo information in the data.  
The actuator positions heads on the CCS zone over the disk and is locked by the mechanical  
lock when the power is off or the spindle motor is stopped.  
(5)  
Air circulation (recirculation filter, breather filter)  
The heads, disks, and actuator are hermetically sealed inside a disk enclosure (DE) to keep out  
dust and other pollutants. The DE has a closed-loop air recirculation system. Using the  
movement of the rotating disks, air is continuously cycled through a filter. This filter will trap  
any dust generated inside the enclosure and keep the air inside the DE contaminant free. To  
prevent negative pressure in the vicinity of the spindle when the disks begin rotating, a  
breather filter is attached. The breather filter also equalizes the internal air pressure with the  
atmospheric pressure due to surrounding temperature changes.  
(6)  
(7)  
Read/write circuit  
The read/write circuit uses head LSI chips and partial response class 4 maximum likelihood  
(PR4ML) modulator and demodulator circuit to prevent errors caused by external noise, thus  
improving data reliability.  
Controller circuit  
The controller circuit uses LSIs to increase the reliability and uses a high speed  
microprocessing unit (MPU) to increase the performance of the SCSI controller.  
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1 - 9  
1.3  
System Configuration  
Figure 1.8 shows the system configuration. The IDDs are connected to the SCSI bus of host  
systems and are always operated as target. The IDDs perform input/output operation as  
specified by SCSI devices which operate as initiator.  
Figure 1.8 System configuration  
(1)  
SCSI bus configuration  
Up to eight SCSI devices operating as an initiator or a target can be connected to the SCSI bus  
for the 8-bit SCSI and up to 16 SCSI devices operating as an initiator or a target can be  
connected to the SCSI bus for the 16-bit SCSI in any combination.  
For example, the system can be configured as multi-host system on which multiple host  
computers that operate as initiator or connected through the SCSI bus.  
Using disconnect/reconnect function, concurrent input/output processing is possible on multi-  
SCSI devices.  
1 - 10  
C141-E035-02EN  
(2)  
Addressing of peripheral device  
Each SCSI device on the bus has its own unique address (SCSI ID:#n in Figure 1.6). For  
input/output operation, a peripheral device attached to the SCSI bus that operates as target is  
addressed in unit called as logical unit. A unique address (LUN: logical unit number) is  
assigned for each logical unit.  
The initiator selects one SCSI device by specifying that SCSI ID, then specifies the LUN to  
select the peripheral device for input/output operation.  
The IDD is constructed so that the whole volume of disk drive is a single logical unit, the  
selectable number of SCSI ID and LUN are as follows:  
·
·
SCSI ID:  
LUN:  
8-bit SCSI:Selectable from 0 to 7 (switch selectable)  
16-bit SCSI:Selectable from 0 to 15 (switch selectable)  
0 (fixed)  
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1 - 11  
CHAPTER 2  
SPECIFICATIONS  
2.1 Hardware Specifications  
2.2 SCSI Function Specifications  
This chapter describes specifications of the IDD and the functional specifications of the SCSI.  
2.1  
Hardware Specifications  
2.1.1 Model name and part number  
Each model has a different data format and front panel type when shipped. (See Appendix D  
for the model name (type) and product number.)  
The data format can be changed by reinitializing with the user's system.  
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2 - 1  
2.1.2 Function specifications  
Table 2.1 shows the function specifications of the IDD.  
Table 2.1  
Function specifications  
Specification  
MAB3045xx  
4.55 GB  
5.95 GB  
3
Item  
MAA3182xx  
18.2 GB  
23.9 GB  
10  
MAB3091xx  
MAC3091xx  
MAC3045xx  
Formatted capacity/device (*1)  
Unformatted capacity/device  
Number of disks  
9.1 GB  
11.9 GB  
5
9.1 GB  
11.8 GB  
5
4.55 GB  
5.90 GB  
3
5
Number of heads  
19  
10  
5
10  
Number of cylinders (*2)  
Unformatted capacity/track  
9,041  
8,491  
8,691  
81,920 to  
126,976  
85,504 to 126,976  
7,200±0.5%  
79,872 to 126,976  
Number of rotations (rpm)  
Average latency time  
10,033±0.5%  
2.99 ms  
4.17 ms  
Minimum  
0.9 ms (Read)/  
1.1 ms (Write)  
8.0 ms (Read)/  
9.0 ms (Write)  
17.0 ms (Read)/  
18.0 ms (Write)  
0.8 ms (Read)/  
1.0 ms (Write)  
7.5 ms (Read)/  
8.5 ms (Write)  
16.0 ms (Read)/  
17.0 ms (Write)  
Seek time (*3)  
(Read/Write)  
Average  
Maximum  
Start/stop time  
(*4)  
Start time  
Stop time  
30 s typ. (60 s max.)  
30 s typ.  
Recording mode  
PR4ML  
Recording density  
Track density  
121,000 to 159,000 bpi  
9,620 TPI  
116,093 to 159,084 bpi  
9,200 TPI  
External dimensions  
Height  
Width  
Depth  
41.3 mm  
101.6 mm  
146.0 mm  
25.4 mm  
101.6 mm  
146.0 mm  
Weight  
1.0 kg  
0.65 kg  
9 W  
0.70 kg  
14 W  
Power  
consumption (*5)  
16bit-SCSI  
Single-ended type  
13 W  
Interface  
Fast SCSI  
Cable length: 6 m max  
Fast 20 SCSI  
Cable length: 3 m max (*6)  
Cable length: 1.5 m max (*7)  
Data transfer  
rate (*8)  
Disk drive  
12.3 to  
19.5 MB/s  
13.2 to 19.5 MB/s  
12 MB/s max.  
17.2 to 27.2 MB/s  
SCSI Asynchronous  
mode  
Synchronous  
mode  
40 MB/s max.  
Logical data block length (*1)  
SCSI command specification  
512 to 528 byte (Fixed length)  
ANSI X3.13-1986 and CCS (Rev. 4B) conformity  
(SCSI-2 ANSI X3T9.2/86-109 Rev 10h) command support  
SCSI-3 command partial support  
Data buffer  
512 KB FIFO ring buffer, multi-segment buffer: Segment  
count 1 to 16, Read-ahead cache  
2 - 2  
C141-E035-03EN  
(*1)  
(*2)  
(*3)  
The formatted capacity can be changed by changing the logical block length and using spare  
sector space. See Chapter 3 for the further information.  
The number of user cylinders indicates the max., and includes the alternate cylinder. The  
number of user cylinders and alternate cylinders can be specified at format of the IDD.  
The positioning time is as follows:  
2000  
4000 6000 8000 10000  
2000  
4000 6000 8000 10000  
MAA31xxxx  
MAB30xxxx/MAC30xxxx  
(*4)  
The start time is the time from power on or start command to when the IDD is ready, and stop  
time is the time for disks to completely stop from power off or stop command.  
(*5)  
(*6)  
(*7)  
(*8)  
This value indicates at ready mode.  
Up to 4 SCSI devices having capacitance of 25pF or less can use cable length of up to 3.0 m.  
5 to 8 SCSI devices having capacitance of 25pF or less can use cable length of up to 1.5 m.  
The maximum data transfer rate may be restricted to the response speed of initiator and by  
transmission characteristics.  
(*9)  
The terminator power pin (SCSI connector) which supplies power to other terminators is not  
used.  
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2 - 3  
2.1.3 Environmental specifications  
Table 2.2 lists environmental and power requirements.  
Table 2.2  
Environmental/power requirements  
MAA3182xx  
MAB3091xx  
MAB3045xx  
5 to 50°C  
MAC3091xx  
MAC3045xx  
Operating  
Non-operating  
– 40 to 60°C  
Temperature (*1)  
DE surface  
temperature at  
operating  
5 to 55°C  
Gradient  
15°C/h or less  
20 to 80%RH  
20 to 80%RH  
Operating  
Non operating  
Relative humidity  
Packaged (inside of a week) 5 to 90%RH  
Maximum wet  
bulb temperature  
29°C (no condensation)  
Operating (*3)  
0.3 mm (5 to 20Hz)/0.5G (20 to 250 Hz) or less  
Vibration (*2)  
Shock (*2)  
Non-operating  
(*4)  
3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less  
Packaged 3.1 mm (5 to 20Hz)/5G (20 to 250Hz) or less  
Operating  
5G (11 ms half-sin.) or less  
60G or less (11 ms half-sin)  
Non-operating  
50G or less  
(11 ms half-sin.)  
Operating  
0 m to 3,000 m (above sea level)  
0 m to 12,000 m (above sea level)  
Altitute  
(above sea level)  
Non-operating  
+12 VDC ±5%  
Ready (Average)  
Spin-up, Seek  
Peak within  
0.77 A  
2.5 A (Max)  
3.0 A  
0.43 A  
1.8 A (Max)  
3.0 A  
0.27 A  
1.8 A (Max)  
3.0 A  
0.85 A  
2.5 A (Max)  
3.0 A  
0.60 A  
2.5 A (Max)  
3.0 A  
Power  
requirements  
Input power (*5)  
100 ms at spin-up  
+5 VDC ±5% (*6)  
Ready  
Random W/R  
(about 80 IOPS)  
0.75 A  
1.1 A  
Ripple (*7)  
+5 V 100 mVp-p, +12 V 150 mVp-p  
(*1)  
(*2)  
For detail condition, see Section 4.1.  
Vibration applied to the drive is measured at near the mounting screw hole on the frame as  
much as possible.  
(*3)  
(*4)  
At random seek write/read and default on retry setting with log sweep vibration.  
At power-off state after installation  
Vibration displacement should be less than 2.5 mm.  
(*5)  
Input voltages are specified at the connector.  
C141-E035-03EN  
2 - 4  
(*6)  
(*7)  
The terminator power pin (SCSI connector) which supplies power to other terminators is not  
used (See Section 4.3).  
High frequency noise is less than 100 mVp-p.  
2.1.4 Error rate  
Errors detected during initialization and replaced by alternate block assignments are not  
included in the error rate. Data blocks to be accessed should be distributed over the disk  
medium equally.  
(1)  
(2)  
Unrecoverable error rate  
Errors which cannot be recovered within 63 retries and ECC correction should not exceed 10  
per 1015 bits.  
Positioning error rate  
Positioning errors which can be recovered by one retry should be 10 or less per 108 seeks.  
2.1.5 Reliability  
(1) Mean Time Between Failures (MTBF)  
MTBF of the IDD during its life time is 1,000,000 hours (operating: 24 hours/day, 7  
days/week average DE surface temperature: 40°C or less).  
Note:  
The MTBF is defined as:  
Operating time (hours) at all field sites  
MTBF=  
The number of equipment failures from all field sites  
Failure of the equipment means failure that requires repair, adjustments, or replacement.  
Mishandling by the operator, failures due to bad environmental conditions, power trouble,  
host system trouble, cable failures, or other failures not caused by the equipment are not  
considered.  
(2)  
Mean Time To Repair (MTTR)  
MTTR is the average time taken by a well-trained service mechanic to diagnose and repair a  
drive malfunction. The drive is designed for a MTTR of 30 minutes or less.  
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2 - 5  
(3)  
Service life  
The service life under suitable conditions and treatment is as follows.  
The service life is depending on the environment temperature. Therefore, the user must design  
the system cabinet so that the average DE surface temperature is as possible as low.  
·
·
·
·
DE surface temperature: 45°C or less  
DE surface temperature: 46°C to 50°C  
DE surface temperature: 51°C to 55°C  
DE surface temperature: 56°C and more strengthen cooling power so that DE  
surface temperature is 55°C or less.  
5 years  
4 years  
3 years  
Even if the IDD is used intermittently, the longest service life is 5 years.  
Note:  
The "average DE surface temperature" means the average temperature at the DE surface  
throughout the year when the IDD is operating.  
(4)  
Data security at power failure  
Integrity of the data on the disk is guaranteed against all forms of DC power failure except on  
blocks where a write operation is being performed. The above does not applied to formatting  
disks or assigning alternate blocks.  
2 - 6  
C141-E035-03EN  
2.2  
SCSI Function Specifications  
Table 2.3 shows the SCSI functions provided with the IDD.  
See Appendix E for the SCSI interface functions provided for the IDD. Refer to the OEM  
Manual –SCSI Physical Specifications–, for details or specifications.  
Table 2.3  
SCSI function specifications  
Item  
Specification  
Single-ended type  
Differential type  
O
´
Electrical  
requirements  
Single-ended type Position where the terminating  
resistor is mounted on the PCA  
O
Differential type  
Position where the terminating  
resistor is mounted on the PCA  
´
TERMPWR signal send/receive function  
Non-shielded type (50 mil pitch): 16-bit SCSI  
Shielded type  
O
O
´
Connector  
Data bus parity  
O
O
O
Bus arbitration function  
Disconnection/reconnection function  
SCSI ID  
8-bit SCSI  
16-bit SCSI  
#0 to #7  
(Jumper selection)  
#0 to #15  
Addressing  
(Jumper selection)  
LUN (logical unit number)  
Asynchronous mode  
#0 fixed  
8-bit SCSI  
16-bit SCSI  
O 6 MB/s max.  
O 12 MB/s max.  
Data transfer  
Data buffer  
Synchronous mode  
8-bit SCSI  
16-bit SCSI  
O 20 MB/s max.  
O 40 MB/s max.  
512-KB programmable segment  
buffer (1 to 16)  
512 to 528 bytes  
(Fixed length)  
Data block length (Logical data length=Physical data length)  
O : Provided  
´ : Not provided  
C141-E035-03EN  
2 - 7  
CHAPTER 3  
DATA FORMAT  
3.1 Data Space  
3.2 Logical Data Block Addressing  
3.3 Defect Management  
This chapter explains data space definition, logical data block addressing, and defect management on  
the IDD.  
3.1  
Data Space  
The IDD manages the entire data storage area divided into the following three data spaces.  
·
·
·
User space: Storage area for user data  
Internal test space: Reserved area for diagnostic purposes  
System space: Area for exclusive use of IDD itself  
The user space allow a user access by specifying data. These space can be accessed with the  
logical data block addressing method described in Section 3.2. The internal test space is used  
by Read/write test of self-diagnostics test, but user can’t use direct access. The system space is  
accessed inside the IDD at power-on or during the execution of a specific command, but the  
user cannot directly access the system space.  
3.1.1 Cylinder configuration  
The IDD allocates cylinders to the user space, Internal test space, and system space. Figure  
3.1 is the cylinder configuration.  
Spare areas (alternate areas) for defective sectors are provided in the user space. Several  
sectors in the last track of one cylinder and several cylinders (alternate cylinders) in the user  
space are allocated as alternate areas according to the user's assignment (MODE SELECT  
command). See Subsection 3.1.2 for details.  
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3 - 1  
Figure 3.1 Cylinder configuration  
Apart from the above logical configuration, the IDD intends to increase the storage capacity by  
dividing all cylinders into several zones and changing a recording density of each zone.  
Tables 3.1 and 3.2 show the zone layout and the track capacity.  
3 - 2  
C141-E035-03EN  
Table 3.1  
Zone layout and track capacity (MAA31xxxx)  
Zone  
0
1
2
3
4
5
6
Cylinder  
0 to 769  
770 to  
1,549  
1,550 to  
2,279  
2,280 to 2,700 to  
3,500 to 4,260 to  
4,259 5,089  
2,699  
150,833  
230  
3,499  
146,666  
224  
Byte/track 162,250  
154,160  
240  
141,666 136,666  
¬
¬
Sector/track  
248  
216  
208  
Zone  
7
8
9
10  
11  
12  
13  
Cylinder  
5,090 to 6,100 to  
6,480 to  
7,149  
7,150 to 7,670 to  
7,960 to  
8,489  
8,490 to  
9,039  
6,099  
6,479  
127,625  
194  
7,669  
118,333  
180  
7,959  
115,833  
176  
Byte/track 130,000  
121,900  
186  
110,416  
167  
102,500  
160  
Sector/track  
200  
Table 3.2  
Zone layout and track capacity (MAB30xxxx)  
Zone  
0
1
2
3
4
5
6
Cylinder  
0 to 769  
770 to  
1,549  
1,550 to  
2,279  
2,280 to 2,700 to  
3,500 to  
4,259  
4,260 to  
5,089  
2,699  
150,833  
230  
3,499  
146,666  
224  
Byte/track 162,250  
154,166  
240  
141,666  
216  
136,666  
208  
¬
¬
Sector/track  
248  
Zone  
7
8
9
10  
11  
12  
Cylinder  
5,090 to 6,100 to  
6,480 to  
7,149  
7,150 to 7,670 to  
7,960 to  
8,489  
6,099  
6,479  
127,625  
194  
7,669  
118,333  
180  
7,959  
115,833  
176  
Byte/track 130,000  
121,900  
186  
110,416  
167  
Sector/track  
200  
Table 3.3  
Zone layout and track capacity (MAC30xxxx)  
Zone  
0
1
2
3
4
5
6
Cylinder  
0 to 409  
410 to  
1,209  
1,210 to  
1,759  
1,760 to 2,560 to  
3,260 to 3,910 to  
3,909 4,039  
2,559  
151,104  
230  
3,259  
147,484  
225  
Byte/track 162,774  
154,698  
240  
143,719 141,207  
¬
¬
Sector/track  
248  
220  
214  
Zone  
7
8
9
10  
11  
12  
13  
Cylinder  
4,310 to 4,970 to  
5,510 to  
6,109  
6,110 to 6,610 to  
7,470 to  
8,069  
8,070 to  
8,689  
4,969  
Byte/track 136,738  
Sector/track 210  
5,509  
132,779  
201  
6,609  
123,873  
187  
7,469  
116,128  
180  
128,061  
195  
110,150  
166  
103,154  
156  
C141-E035-03EN  
3 - 3  
(1)  
User space  
The user space is a storage area for user data. The data format on the user space (the length of  
data block and the number of data blocks) can be specified with the MODE SELECT or  
MODE SELECT EXTENDED command.  
The default number of cylinders in the user space is 9,041 for MAA31xxxx, 8,491 for  
MAB30xxxx and 8,691 for MAC30xxxx. The user, however, can select the number of  
cylinders to be allocated in the user space by specifying 9,041 for MAA31xxxx, 8,491 for  
MAB30xxxx and 8,691 for MAC30xxxx as the maximum and the number of alternate  
cylinders + 1 as the minimum. The user can also specify the number of logical data blocks to  
be placed in the user space with the MODE SELECT or MODE SELECT EXTENDED  
command. When the number of logical data blocks is specified, as many cylinders as required  
to place the specified data blocks are allocated in the user space.  
A number starting with 0 is assigned to each cylinder required in the user space in ascending  
order. If the number does not reach 9,041 (MAA31xxxx), 8,491 (MAB30xxxx) and 8,691  
(MAC30xxxx), the rest of the cylinders will not be used.  
Always one alternate cylinders can be established in the user space. Alternate cylinders will  
be used for alternate blocks when primary cylinders in the user space are used up. See  
Subsections 3.1.2 and 3.3.2 for details.  
(2)  
Internal test space  
The Internal test space is an area for diagnostic purposes only and its data block length is  
always 512KByte. The Internal test space consists of only 1 cylinder and outer-host cylinder  
is always assigned. The user cannot change the number of cylinders in the Internal test space  
or their positions.  
The IDD reads or writes the data block in the Internal test space during the self-diagnostic test  
specified with a SEND DIAGNOSTIC command.  
(3)  
System space  
The system space is an area for exclusive use of the IDD itself and the following information  
are recorded. The length of the data block is always 512 bytes.  
·
·
·
·
Defect list (P list and G list)  
MODE SELECT parameter (saved value)  
Statistical information (log data)  
Controller control information  
The above information are duplicated in several different locations for safety.  
Note:  
The system space is also called SA space.  
3 - 4  
C141-E035-03EN  
3.1.2 Alternate spare area  
The alternate spare area is provided in the last track of each primary cylinder in the user space,  
and in the last track of the cylinder and the alternate cylinder.  
The spare area in each cylinder is placed at the end of the last track as shown in Figure 3.2.  
These spare sectors are located in the end of the track logically, not necessarily located at the  
end physically because of track skew or cylinder skew. (Details are explained on Subsection  
3.1.3.)  
Size can be specified by the MODE SELECT command.  
The number of spare sectors per cylinder can be specified exceeding 32. The default value of  
number of 9space sectors per cylinder is 20.  
Figure 3.2 Spare area in cylinders  
An alternate cylinder is used when spare sectors in a cylinder are used up or 0 is specified as  
the number of spare sectors in a cylinder. Several cylinders at the end of the user space are  
allocated as alternate cylinders as shown in Figure 3.3.  
The number of alternate cylinder is 1.  
The user space and the CE space share the alternate cylinders.  
Figure 3.3 Alternate cylinder  
Note:  
Zero cannot be specified for both the number of spare sectors in each cylinder and the  
number of alternate cylinders.  
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3 - 5  
3.1.3 Track format  
(1)  
Physical sector allocation  
Figure 3.4 shows the allocation of the physical sectors in a track. The length in bytes of each  
physical sector and the number of sectors per track vary depending on the logical data block  
length. The unused area (G4) exists at the end of the track in formats with most logical data  
block lengths.  
The interval of the sector pulse (length of the physical sector) is decided by multiple of  
15MHz free running frequency. This clock is not equal to the interval of the byte clock for  
each zone. Therefore, the physical sector length cannot be described with a byte length.  
Figure 3.4 Track format  
3 - 6  
C141-E035-03EN  
(2)  
Track skew and cylinder skew  
To avoid waiting for one turn involved in head and cylinder switching, the first logical data  
block in each track is shifted by the number of sectors (track skew and cylinder skew)  
corresponding to the switching time. Figure 3.5 shows how the data block is allocated in each  
track.  
At the head switching location in a cylinder, the first logical data block in track t + 1 is  
allocated at the sector position which locates the track skew behind the sector position of the  
last logical data block sector in track t.  
At the cylinder switching location, like the head switching location, the first logical data block  
in a cylinder is allocated at the sector position which locates the cylinder skew behind the last  
logical sector position in the preceding cylinder. The last logical sector in the cylinder is  
allocated when formatting, and is an unused spare sector.  
Figure 3.5 Track skew/cylinder skew  
The number of physical sectors (track skew factor and cylinder skew factor) corresponding to  
the skew time varies depending on the logical data block length because the track skew and  
the cylinder skew are managed for individual sectors. The IDD automatically determines  
appropriate values for the track skew factor and the cylinder skew factor according to the  
specified logical data block length. The value can be read out by the MODE SENSE or  
MODE SENSE EXTENDED command after the track has been formatted.  
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3 - 7  
3.1.4 Sector format  
Each sector on the track consists of an ID field, a data field, and a gap field which separates  
them. Figure 3.6 gives sector format examples.  
Figure 3.6 Sector format  
Each sector on the track consists of the following fields:  
Gaps (G1)  
(1)  
The gap length at the time of formatting (initializing) is listed in Figure 3.6. Pattern X'00' is  
written on the gap field.  
(2)  
(3)  
(4)  
(5)  
PLO Sync  
In this field, pattern X'00' in the length in bytes listed in Figure 3.6 is written.  
Trailing (TRNG)/Sync Byte (SB)  
In this field, special pattern in the length in bytes listed in Figure 3.6 is written.  
LBA  
The logical block address is written in this field.  
Data field  
User data is stored in the data field of the sector. The length of the data field is equal to that of  
the logical data block which is specified with a parameter in the MODE SELECT command.  
Any even number between 512 and 528 bytes can be specified as the length.  
3 - 8  
C141-E035-02EN  
(6)  
(7)  
(8)  
(9)  
BCRC  
It is a 2-byte error detection code. Errors in the ID field. Single burst errors with lengths of up  
to 16 bits for each logical block can be detected.  
ECC  
24-byte data error detection/correction code for the data field. It is possible to on-the-fly  
correct the single burst errors with lengths of up to 89 bits.  
PAD 1  
A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field  
includes the variation by rotation and circuit delay till reading/writing.  
PAD 2/PAD 3  
A specified length of x‘00’ pattern shown in Figure 3.6 is written in this field. This field  
contains the processing time necessary to process next sector continuously. This field have  
rotational speed variation.  
C141-E035-02EN  
3 - 9  
3.1.5 Format capacity  
The size of the usable area for storing user data on the IDD (format capacity) varies according  
to the logical data block or the size of the spare sector area. Table 3.4 lists examples of the  
format capacity when the typical logical data block length and the default spare area are used.  
The following is the general formula to calculate the format capacity.  
[Number of sectors of each zone] = [number of sectors per track ´ number of tracks (heads) –  
number of alternate spare sectors per cylinder] ´ [number of cylinders in the zone]  
[Formatted capacity] = [total of sectors of all zones] – [number of sectors per track in last zone  
´ number of tracks (heads) ´ number of alternate cylinders] ¸ [number of physical sectors in  
logical block] ´ [logical data block length]  
The following formula must be used when the number of logical data blocks are specified with  
the parameter in the MODE SELECT or MODE SELECT EXTENDED command.  
[Format capacity] = [logical data block length] ´ [number of logical data blocks]  
The logical data block length, the maximum logical block address, and the number of the  
logical data blocks can be read out by a READ CAPACITY, MODE SENSE, or MODE  
SENSE EXTENDED command after initializing the disk medium.  
Table 3.4  
Format capacity  
Model  
Data heads Data block length User blocks  
Format capacity (GB)  
MAA3182xx  
MAB3091xx  
MAB3045xx  
MAC3091xx  
MAC3045xx  
19  
10  
5
35,680,750  
17,824,700  
8,895,370  
17,871,600  
8,918,420  
18.2  
9.1  
512  
4.55  
9.1  
10  
5
4.55  
Note:  
Total number of spare sectors is calculated by adding the number of spare sectors in each  
primary cylinder and the number of sectors in the alternate cylinders.  
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3.2  
Logical Data Block Addressing  
Independently of the physical structure of the disk drive, the IDD adopts the logical data block  
addressing as a data access method on the disk medium. The IDD relates a logical data block  
address to each physical sector at formatting. Data on the disk medium is accessed in logical  
data block units. The INIT specifies the data to be accessed using the logical data block  
address of that data.  
The logical data block addressing is a function whereby individual data blocks are given  
addresses of serial binaries in each drive.  
(1)  
Block address of user space  
The logical data block address number is consecutively assigned to all of the data blocks in the  
user space starting with 0 to the first data block.  
The IDD treats sector 0, track 0, cylinder 0 as the first logical data block. The data block is  
allocated in ascending order of addresses in the following sequence (refer to Figure 3.5):  
1) Numbers are assigned in ascending order to all sectors in the same track.  
2) By following step 1), numbers are assigned in ascending order of tracks to all sectors in  
each track in the same cylinder except the last track.  
3) By following step 1), numbers are assigned to all sectors in the last track except the spare  
sectors.  
4) After completing steps 1) through 3) for the same cylinder, this allocation is repeated from  
track 0 in the next cylinder and on to the last cylinder (cylinder p-q in Figure 3.1) except  
for the alternate cylinders in ascending order of cylinder numbers.  
When the logical data block is allocated, some sectors (track skew and cylinder skew) shown  
in Figure 3.5 are provided to avoid waiting for one turn involving head and cylinder switching  
at the location where the track or the cylinder is physically switched.  
See Subsection 3.3.2 for defective/alternate block treatment and the logical data block  
allocation method in case of defective sectors exist on the disk.  
(2)  
Alternate area  
Alternate areas in the user space (spare sectors in the cylinder and alternate cylinders) are not  
included in the above logical data block addresses. Access to sectors which are allocated as an  
alternate block in the alternate area is made automatically by means of IDD sector slip  
treatment or alternate block treatment (explained in Subsection 3.3.2), so the user does not  
have to worry about accessing the alternate area. The user cannot access with specifying the  
data block on the alternate area explicitly.  
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3 - 11  
3.3  
Defect Management  
3.3.1 Defect list  
Information of the defect location on the disk is managed by the defect list. The following are  
defect lists which the IDD manages.  
·
·
·
P list (Primary defect list): This list consists of defect location information available at the  
disk drive shipment and is recorded in a system space. The defects in this list are  
permanent, so the INIT must execute the alternate block allocation using this list when  
initializing the disk.  
D list (Data defect list): This list consists of defect location information specified in a  
FORMAT UNIT command by the INIT at the initialization of the disk. This information  
is recorded in the system space of the disk drive as the G list. To execute the alternate  
block allocation, the FORMAT UNIT command must be specified.  
C list (Certification defect list): This list consists of location information on defective  
blocks which are detected by the verifying operation (certification) of the data block after  
the initiation when executing the FORMAT UNIT command. The IDD generates this  
information when executing the FORMAT UNIT command, and the alternate block  
allocation is made upon the defective block. This information is recorded in the system  
space of the disk drive as the G list.  
·
G list (Growth defect list): This list consists of defective logical data block location  
information specified in a REASSIGN BLOCKS command by the INIT, information on  
defective logical data blocks assigned alternate blocks by means of IDD automatic  
alternate block allocation, information specified as the D list, and information generated as  
the C list. They are recorded in the system space on the disk drive.  
The INIT can read out the contents of the P and G lists by the READ DEFECT DATA command.  
3.3.2 Alternate block allocation  
The alternate data block is allocated to a defective data block (= sectors) in defective sector  
units by means of the defect management method inside the IDD.  
The INIT can access all logical data blocks in the user space, as long as there is no error.  
Spare sectors to which alternate blocks are allocated can be provided in either "spare sectors in  
a cylinder" or "alternate cylinders". See Subsection 3.1.2 for details.  
The INIT can specify the size and area for spare sectors by the MODE SELECT command at  
the time of the initialization of the disk.  
Both of the following are applicable to the alternate block allocation.  
·
Sector slip treatment: Defective sectors are skipped and the logical data block  
corresponding to those sectors is allocated to the next physical sectors. This treatment is  
made on the same cylinder as the defective sector's and is effective until all spare sectors in  
that cylinder are used up.  
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C141-E035-01EN  
·
Alternate sector treatment: The logical data block corresponding to defective sectors is  
allocated to unused spare sectors in the same cylinder or unused spare sectors in the  
alternate cylinder.  
The alternate block allocation is executed by the FORMAT UNIT command, the REASSIGN  
BLOCKS command, or the automatic alternate block allocation. Refer to OEM Manual–SCSI  
Logical Specifications–for details of specifications on these commands. The logical data  
block is allocated to the next physically continued sectors after the above sector slip treatment  
is made. On the other hand, the logical data block is allocated to spare sectors which are not  
physically consecutive to the adjacent logical data blocks. If a command which processes  
several logical data blocks is specified, the IDD processes those blocks in ascending order of  
logical data block.  
(1)  
Alternate block allocation during FORMAT UNIT command execution  
When the FORMAT UNIT command is specified, the allocation of the alternate block to those  
defective sectors included in the specified lists (P, G, or D) is continued until all spare sectors  
in the same cylinder are used up. When they are used up, unused spare sectors in the alternate  
cylinder are allocated to the subsequent sectors in the cylinder by means of alternate sector  
treatment. Figure 3.7 is examples of the alternate block allocation during the FORMAT UNIT  
command execution.  
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3 - 13  
: n represents a logical data block number  
: Defective sector  
: Unused spare sector  
Figure 3.7 Alternate block allocation by FORMAT UNIT command  
If the data block verifying operation (certification) is not permitted (DCRT flag = 0) in the  
FORMAT UNIT command, the IDD checks all initialized logical data blocks by reading them  
out after the above alternate block allocation is made to initialize (format) the disk. If a  
defective data block is detected during the check, the IDD generates the C list for defect  
location information and allocates the alternate block to the defective data block. This  
alternate block allocation is made by means of alternate sector treatment only like processing  
by the REASSIGN BLOCKS command even if unused spare sectors exists in the same  
cylinder.  
3 - 14  
C141-E035-01EN  
(2)  
Alternate block allocation by REASSIGN BLOCKS command  
When the REASSIGN BLOCKS command is specified, the alternate block is allocated to the  
defective logical data block specified by the initiator by means of alternate sector treatment. If  
there are unused spare sectors in the same cylinder as the specified defective logical data  
block, the alternate block is allocated to these unused spare sectors. However, the alternate  
block is allocated to unused spare sectors in the alternate cylinder when all spare sectors in the  
cylinder are used up.  
Figure 3.8 is examples of the alternate block allocation by the REASSIGN BLOCKS  
command.  
: n represents a logical data block number  
: Defective sector  
: Unused spare sector  
Figure 3.8 Alternate block allocation by REASSIGN BLOCKS command  
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3 - 15  
(3)  
Automatic alternate block allocation  
If the ARRE flag in the MODE SELECT parameter permits the automatic alternate block  
allocation, the IDD automatically executes the alternate block allocation and data duplication  
on the defective data block detected during the READ EXTENDED command. This  
allocation method is the same as with the REASSIGN BLOCKS command (alternate sector  
treatment).  
IMPORTANT  
Automatic alternate block allocation is made only once during the  
execution of one command. If second defective block is detected,  
the alternate block assignment processing for the first defective  
block is executed but the alternate block assignment processing  
for the second one is not executed and the command being  
executed terminates. However, the initiator can recover the twice  
error by issuing the same command again.  
When an error is detected in a data block in the data area,  
recovery data is rewritten and verified in automatic alternate  
block allocation during the execution of the READ or READ  
EXTENDED command. Alternate block allocation will not be  
made for the data block if recovery is successful.  
Example: Even if the data error which is recoverable by the  
WRITE LONG command is simulated, automatic  
alternate block allocation will not be made for the data  
block.  
3 - 16  
C141-E035-01EN  
CHAPTER 4  
INSTALLATION REQUIREMENTS  
4.1 Mounting Requirements  
4.2 Power Supply Requirements  
4.3 Connection Requirements  
This chapter describes the environmental, mounting, power supply, and connection requirements.  
4.1  
4.1.1 External dimensions  
Figures 4.1 to 4.4 show the external dimensions of the IDD and the positions of the holes for  
Mounting Requirements  
the IDD mounting screws.  
Note:  
Dimensions are in mm.  
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4 - 1  
Figure 4.1 External dimensions (MAA31xxSC)  
4 - 2  
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Figure 4.2 External dimensions (MAA31xxSP)  
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4 - 3  
Figure 4.3 External dimensions (MAB30xxSC, MAC30xxSC)  
4 - 4  
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Figure 4.4 External dimensions (MAB30xxSP, MAC30xxSP)  
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4 - 5  
4.1.2 Mounting  
The permissible orientations of the IDD are shown in Figure 4.5, and the tolerance of the angle  
is ±5° from the horizontal plane.  
(a) Horizontal –1  
(b) Horizontal –2  
(c) Vertical –1  
Direction of  
gravity  
(d) Vertical –2  
(e) Upright mounting –1  
(f) Upright mounting –2  
Figure 4.5 IDD orientation  
4.1.3 Notes on mounting  
(1)  
Mounting frame structure  
To guarantee integrity of the IDD disk enclosure (DE) insulation once mounted on the frame  
inside the system, special attention must be given to the note below.  
Note:  
Generally, SG and FG are connected at one point in the system enclosure. Therefore, use  
following procedure to maintain the insulation when mounting the IDD.  
a) Use the frame with an embossed structure or the like to avoid contact between the DE  
base and FG. Mount the IDD with making a gap of 2.5 mm or more between the IDD  
and the frame of the system.  
b) As shown in Figure 4.6, the inward projection of the screw from the IDD frame wall  
at the corner must be 4 mm or less.  
4 - 6  
C141-E035-02EN  
c) Tightening torque of screw must be secured with 6kg-cm.  
Damage : To absolutely guarantee integrity of the IDD disk enclosure (DE) insulation  
once actually mounted to the frame inside the system, special attention must be given  
to the cautionary notes below.  
Figure 4.6 Mounting frame structure  
(2)  
Limitation of side-mounting  
Mount the side using the screw holes at both the ends as shown in Figure 4.7. Do not use the  
center hole.  
Do not use these holes  
Use these holes  
Figure 4.7 Limitation of side-mounting  
C141-E035-03EN  
4 - 7  
(3)  
Environmental temperature  
Temperature condition at installed in a cabinet is indicated with ambient temperature measured  
3 cm from the disk drive. At designing the system cabinet, consider following points.  
·
Make a suitable air flow so that the DE surface temperature does not exceed 55°C.  
CAUTION  
An air flow with an adequate wind velocity must be maintained to  
deal with much heat generated from the MAC30xxxx.  
Reference value: An air flow with a wind velocity of more than  
0.5 m/s is required in an environment at 40°C,  
and an air flow with a wind velocity of more  
than 1.0m/s in an environment at 45°C (Center  
of DE cover 55°C).  
·
Cool the PCA side especially with air circulation inside the cabinet. Confirm the cooling  
effect by measuring temperature of specific ICs and the DE. These measurement results  
should be within a criteria listed in Table 4.1.  
Table 4.1  
Surface temperature check point  
No.  
1
Measurement point  
Center of DE cover  
Criteria  
55°C  
83°C  
75°C  
85°C  
2
Read channel LSI  
VCM/SPM Driver  
HDC  
3
4
4
1
2
3
Figure 4.8 Surface temperature measurement points (MAA31xxxx/MAB30xxxx/ MAC30xxxx)  
4 - 8  
C141-E035-03EN  
(4)  
Service clearance area  
The service clearance area, or the sides which must allow access to the IDD for installation or  
maintenance, is shown in Figures 4.9.  
[Surface P’]  
• Setting terminal  
• External operator panel  
connector  
• Spindle
 
sync connector  
[Surface R]  
• Hole for mounting screw  
[Surface P]  
[Surface Q]  
• Cable connection  
• Hole for mounting screw  
Figure 4.9 Service clearance area  
(5)  
(6)  
External magnetic field  
The drive should not be installed near the ferromagnetic body like a speaker to avoid the  
influence of the external magnetic field.  
Leak magnetic flux  
The IDD uses a high performance magnet to achieve a high speed seek. Therefore, a leak  
magnetic flux at surface of the IDD is large. Mount the IDD so that the leak magnetic flux  
does not affect to near equipment.  
(7)  
Others  
A hole or screw portion as shown in Figure 4.10 is used for adjusting air pressure balance  
between inside and outside the DE. Do not fill with a seal or label.  
Seals on the DE prevent the DE inside from the dust. Do not damage or peel off labels.  
C141-E035-02EN  
4 - 9  
MAA31xxxx  
MAB30xxxx  
MAC30xxxx  
Air pressure adjustment hole  
Air pressure adjustment hole  
Air pressure adjustment hole  
Figure 4.10 Air pressure adjustment hole  
4 - 10  
C141-E035-03EN  
4.2  
Power Supply Requirements  
(1)  
Allowable input voltage and current  
The power supply input voltage measured at the power supply connector pin of the IDD  
(receiving end) must satisfy the requirement given in Subsection 2.1.3. (For other  
requirements, see Items (4) and (5) below.)  
(2)  
Current waveform (reference)  
Figure 4.11 shows the waveform of +12 VDC.  
MAA31xxxx, MAC30xxxx current wave form  
MAB30xxxx current wave form  
Figure 4.11 Current waveform (+12 VDC)  
(3)  
Power on/off sequence  
a) The order of the power on/off sequence of +5 VDC and +12 VDC, supplied to the IDD,  
does not matter.  
b) In a system which uses the terminating resistor power supply signal (TERMPWR) on the  
SCSI bus, the requirements for +5 VDC given in Figure 4.12 must be satisfied between the  
IDD and at least one of the SCSI devices supplying power to that signal.  
Figure 4.12 Power on/off sequence (1)  
C141-E035-03EN  
4 - 11  
c) In a system which does not use the terminating resistor power supply signal (TERMPWR)  
on the SCSI bus, the requirements for +5 VDC given in Figure 4.13 must be satisfied  
between the IDD and the SCSI device with the terminating resistor circuit.  
SCSI devices with  
the terminating  
resistor  
Figure 4.13 Power on/off sequence (2)  
d) Between the IDD and other SCSI devices on the SCSI bus, the +5 VDC power on/off  
sequence is as follows:  
·
In a system with its all SCSI devices designed to prevent noise from leaking to the  
SCSI bus when power is turned on or off, the power sequence does not matter if the  
requirement in b) or c) is satisfied.  
·
In a system containing an SCSI device which is not designed to prevent noise from  
leaking to the SCSI bus, the requirement given in Figure 4.14 must be satisfied  
between that SCSI device and the IDD.  
SCSI devices  
without noise  
leaking designed  
Figure 4.14 Power on/off sequence (3)  
4 - 12  
C141-E035-02EN  
(4)  
Sequential starting of spindle motors  
After power is turned on to the IDD, a large amount of current flows in the +12 VDC line  
when the spindle motor rotation starts. Therefore, if more than one IDD is used, the spindle  
motors should be started sequentially using one of the following procedures to prevent  
overload of the power supply unit. For how to set a spindle motor start control mode, see  
Subsection 5.3.2.  
a) Issue START/STOP commands at 20-second intervals to start the spindle motors. For  
details of this command specification, refer to SCSI Logical Interface Specifications.  
b) Turn on the +12 VDC power in the power supply unit at 20-second intervals to start the  
spindle motors sequentially.  
(5)  
Power supply to SCSI terminating resistor  
If power for the terminating resistor is supplied from the IDD to other SCSI devices through  
the SCSI bus, the current-carrying capacity of the +5 VDC power supply line to the IDD must  
be designed with considering of an increase of up to 200 mA.  
A method of power supply to the terminating resistor is selected with a setting terminal on the  
IDD. See Subsection 5.3.2 for this selection.  
For the electrical condition of supplying power to the terminating resistor, refer to Subsection  
1.4.2 in SCSI Physical Interface Specifications.  
(6)  
Noise filter  
To eliminate AC line noise, a noise filter should be installed at the AC input terminal on the  
IDD power supply unit. The specification of this noise filter is as follows:  
·
·
Attenuation: 40 dB or more at 10 MHz  
Circuit construction: T-configuration as shown in Figure 4.15 is recommended.  
Figure 4.15 AC noise filter (recommended)  
C141-E035-02EN  
4 - 13  
4.3  
Connection Requirements  
4.3.1 Single-ended 16-bit SCSI model (MAA31xxSP, MAB30xxSP, MAC30xxSP)  
(1)  
Connectors  
Figures 4.16 show the locations of connectors and terminals on the single-ended 16-bit SCSI  
model.  
·
·
·
Power supply connector  
SCSI connector  
External operator panel connector  
External operator panel  
Spindle sync connector  
(CN7)  
Power supply  
connector  
(CN1)  
External operator  
panel connector  
(CN1)  
SCSI connector  
(CN1)  
Figure 4.16 Connectors and terminals location (single-ended 16-bit SCSI)  
4 - 14  
C141-E035-03EN  
(2)  
SCSI connector and power supply connector  
a. 16-bit SCSI  
The connector for the SCSI bus is an unshielded P connector conforming to SCSI-3 type  
which has two 34-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.17 shows the SCSI  
connector. See Section C3 in Appendix C for the signal assignments on the SCSI  
connector.  
For details on the physical/electrical requirements of the interface signals, refer to Sections  
1.3 and 1.4 in the SCSI Physical Interface Specifications.  
The tolerance is ±0.127 mm (0.005 inch) unless otherwise  
Figure 4.17 16-bit SCSI interface connector  
b. Power supply connector  
Figure 4.18 shows the shape and the terminal arrangement of the output connector of DC  
power supply.  
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4 - 15  
Figure 4.18 Power supply connector (16-bit SCSI model)  
(3)  
(4)  
SG terminal  
The IDD is not provided with an SG terminal (fasten tab) for DC grounding. Therefore, when  
connecting SG and FG in the system, use the +5 VDC RETURN (ground) inside the power  
supply connector as the SG on the power supply side.  
Connector for external operator panel  
·
Connector for 16-bit SCSI external operator panel  
CN1 provides connector for the external operator panel other than the SCSI bus as shown  
in Figure 4.19. Also, a connector for the external operator panel are provided on the IDD  
as shown in Figure 4.20. This allows connection of an external LED on the front panel,  
and an SCSI ID setting switch. For the recommended circuit of the external operator  
panel, see Subsection 4.3.5.  
Pin  
A1  
Signal  
–ID0  
A2  
(Reserved)  
–ID1  
A3  
A4  
(Open)  
–ID2  
A5  
A6  
–SYNC  
–ID3  
A7  
A8  
–LED  
A9  
TERMON  
GND  
A10  
A11  
A12  
+5 V  
(Reserved)  
Figure 4.19 External operator panel connector (CN1)  
4 - 16  
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Figure 4.20 External operator panel connector (CN7)  
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4 - 17  
(5)  
External operator panel connector Signals  
a. 16-bit SCSI –ID3, –ID2, –ID1, –ID0: Input signals  
These signals are used for providing switches to set the SCSI ID of the IDD externally.  
Figure 4.21 shows the electrical requirements. For the recommended circuit examples, see  
Subsection 4.3.5.  
Figure 4.21 16-bit SCSI ID external input  
4 - 18  
C141-E035-02EN  
b. –LED and LED (V): Output signals  
These signals actuate the external LED as same as LED on the front panel of the disk  
drive. The electrical requirements are given in Figure 4.22.  
Notes:  
1. The external LED is identical in indication to the LED on the front of the IDD.  
The meaning of indication can be selected with the CHANGE DEFINITION  
command.  
For details of command, refer to SCSI Logical Interface  
Specifications.  
2. Any load other than the external LED (see Subsection 4.3.5) should not be  
connected to the LED (V) and –LED terminals.  
Figure 4.22 Output signal for external LED  
c. -SYNC (-Spindle sync): Input/output signal  
The pin CN1-A6, or CN7-10 inputs or outputs the signal for rotational synchronization  
when the IDD carries out rotational synchronization.  
1) Outputs the master signal for rotational synchronization when the IDD is the master  
of rotational synchronization.  
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4 - 19  
2) Inputs the master signal when the IDD carries out rotational synchronization with the  
external master signal.  
This signal is pulled up with 3 kW resistor internally, it is necessary to connect the  
external terminating resistor.  
For details of spindle synchronization function , refer to Section 3.1, in the SCSI  
Logical Interface Specifications.  
CAUTION  
Make the CN1-A6 pin or CN7-10 pin open when not having the  
IDD carry out spindle synchronization.  
d. –DISCON (–disable terminator connection)/TERMON (terminator on): Input signal  
The CN1-A9 (TERMON) or CN6-06 (–DISCON) pin setting specifies whether to operate  
the terminating resistor built-in to the IDD. Table 4.2 shows the electrical requirements.  
See Subsection 5.4.4 for the requirements for terminating resistor operation.  
Table 4.2  
External inputs for operating terminating resistor (16-bit single-ended type)  
Input level  
0 to 0.4 VDC  
(Open)  
Function  
The terminating resistor operates.  
The terminating resistor does not operate.  
Note:  
When the external operator panel is connected to the CN1-A9 pin and the operation of  
the terminating resistor is set on the external operator panel, the corresponding CN6-06  
pin must always be set to open.  
See Subsection 5.3.3.  
4 - 20  
C141-E035-02EN  
(6)  
Cable connection requirements  
The requirements for cable connection between the IDD, host system, and power supply unit  
are given in Figure 4.23. Recommended components for connection are listed in Table 4.1.  
External operator panel  
(example)  
Figure 4.23 Cables connection (16-bit SCSI model)  
C141-E035-02EN  
4 - 21  
4.3.2 SCA2 type SCSI model (MAA31xxSC, MAB30xxSC, MAC30xxSC)  
(1)  
Connectors  
Figure 4.24 shows the locations of connectors and terminals on the SCA2 type SCSI model.  
SCSI connector (including power supply connector)  
SCSI connector  
Figure 4.24 Connectors and terminals location of SCA2 type SCSI model  
4 - 22  
C141-E035-03EN  
(2)  
SCSI connector and power supply connector  
a. SCA type SCSI  
The connector for the SCSI bus is an unshielded SCA-2 connector conforming to SCSI-3  
type which has two 40-pin rows spaced 1.27 mm (0.05 inch) apart. Figure 4.25 shows the  
SCSI connector. See Section C.5 in Appendix C for signal assignments on the connector.  
For details on the physical/electrical requirements of the interface signals, refer to Sections  
1.3 and 1.4 in SCSI Physical Interface Specifications.  
ESD contact  
Figure 4.25 SCA2 type SCSI connector  
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4 - 23  
4.3.3 Cable connector requirements  
Table 4.3 lists the recommended components cable connection.  
Table 4.3  
Recommended components for connection  
Name  
Par number  
Manufacturer  
Reference  
(Figures 4.23  
and 4.28)  
Applicable  
model  
MAx3xxxSP SCSI cable (CN1) Cable socket  
(closed-end type)  
786090-7  
AMP  
S1  
Signal cable  
Power supply cable Cable socket  
1-480424-0  
AMP  
S2  
(CN1)  
housing  
Contact  
Cable  
60619-4  
60617-4  
External operator  
panel (CN1)  
Cable socket  
housing  
FCN-723J012/2M  
Fujitsu Limited  
Fujitsu Limited  
S3  
S4  
Contact  
Cable  
FCN-723J-G/AM  
AWG26 to 34  
External operator  
panel (CN7)  
Cable socket  
housing  
FCN-723J016/2M  
Fujitsu Limited  
Fujitsu Limited  
Contact  
Cable  
FCN-723J-G/AM  
AWG28  
MAx3xxxSC SCSI connector  
(CN1)  
Connector  
787311-1  
AMP  
(1)  
SCSI cable  
All SCSI devices on one bus are daisy-chained with an SCSI cable. A terminating resistor  
must be mounted in the SCSI device at each end of the SCSI cable.  
Because an SCSI terminating resistor module has been mounted in the IDD of single-ended  
type SCSI at factory shipment, it must be set to not-connection when the IDD is not connected  
at either end of the SCSI cable. See Section 5.3 for details.  
The maximum number of SCSI devices that can be connected to the SCSI bus is 16 for the 16-  
bit SCSI, including the host adapter, IDD, and other SCSI equipment.  
For the 16-bit SCSI, the connector for the SCSI cable must be an unshielded 68-contact socket  
having 34-contact rows spaced 1.27 mm (0.05 inch) apart. (See Figure 4.26.)  
4 - 24  
C141-E035-02EN  
<SCSI cable connector for 16-bit SCSI>  
16-bit SCSI  
Symbol  
Remarks  
mm  
inch  
C1  
C2  
C3  
C4  
C5  
C6  
2.540  
41.910  
1.270  
46.280  
5.690  
42.540  
0.110  
1.650  
0.050  
1.822  
2.240  
1.675  
Note:  
The tolerance is ±0.127 mm (0.005 inch) unless otherwise specified.  
Figure 4.26 SCSI cable connector  
C141-E035-02EN  
4 - 25  
The maximum length of the SCSI cable is as follow. If more than one SCSI device is  
connected, the total cable length must not exceed the value given in Table 4.2. The cable  
length between single-ended type SCSI devices must be more than 30 cm (recommended: 50  
cm or more). Each system should decide the cable length between SCSI devices so that the  
total cable length of the system satisfies the specification.  
Table 4.4  
Total cable length of SCSI cable  
16-bit SCSI  
Type  
Fast SCSI  
Ultra SCSI  
Single-ended  
Up to 3 m  
[Up to 6 m is allowable for  
5 MB/s or less]  
Up to 3.0 m  
[4 SCSI devices having  
capacitance of 25 pF]  
Up to 1.5 m  
[5 to 8 SCSI devices  
having capacitance of 25 pF]  
For the SCSI cables, the use of 25- and 34-pair twisted pair cables satisfying the requirements  
in Table 4.5 is recommended.  
Table 4.5  
SCSI cable requirements  
Requirements  
Conductor size  
16-bit SCSI (34-pair)  
30 AWG or bigger  
Characteristic impedance  
Twist pair cable condition  
90 to 132 W  
Pins n and n + 33  
To maintain the transmission characteristics and reduce signal reflection, cables having  
different a characteristic impedance must not be used on the same SCSI bus.  
When an SCSI device is connected to the SCSI cable at a point other than either end of the  
cable, connection to the SCSI connector must be at a branch point of the cable. If an SCSI  
device is connected to last SCSI device except when the cable has a terminating resistor. (See  
Figure 4.27.)  
4 - 26  
C141-E035-02EN  
Figure 4.27 SCSI cable termination  
(2)  
(3)  
Power cable  
IDDs must be star-connected to the DC power supply (one to one connection) to reduce the  
influence of load variations.  
DC ground  
The DC ground cable must always be connected to the IDD because no fasten terminal  
dedicated to SG is provided with the IDD. Therefore, when SG and FG are connected in the  
system, it is necessary to connect SG and FG at the power supply or to connect SG of the  
power supply to FG of the system.  
(4)  
External operator panel  
The external operator panel is installed only when required for the system. When connection  
is not required, leave open the following pins in the external operator panel connector of the  
IDD : Pins 15, 16 and 01 pins 10 through 08 in CN7 and pins A1 through A12 in CN1.  
C141-E035-02EN  
4 - 27  
4.3.4 External operator panel  
A recommended circuit of the external operator panel is shown in Figure 4.28. Since the  
external operator panel is not provided as an option, this panel must be fabricated at the user  
site referring to the recommendation if necessary.  
Figure 4.28 External operator panel circuit example (MAx3xxxSP)  
Note:  
Do not connect the external LED to both CN1 and CN7. Connect it to either of them.  
4 - 28  
C141-E035-03EN  
CHAPTER 5  
INSTALLATION  
5.1 Notes on Handling Drives  
5.2 Connections  
5.3 Setting Terminals  
5.4 Mounting Drives  
5.5 Connecting Cables  
5.6 Confirming Operations after Installation and Preparation  
for Use  
5.7 Dismounting Drives  
This chapter describes the notes on handling drives, connections, setting switches and plugs, mounting  
drives, connecting cables, confirming drive operations after installation and preparation for use, and  
dismounting drives.  
5.1  
Notes on Handling Drives  
(1)  
General notes  
a) Do not give the drive shocks or vibrations exceeding the value defined in the standard  
because it may cause critical damage to the drive. Especially be careful when unpacking.  
b) Do not leave the drive in a dirty or contaminated environment.  
c) Since static discharge may destroy the CMOS semiconductors in the drive, note the  
following after unpacking:  
·
·
Use an antistatic mat and body grounding when handling the drive.  
Hold the DE when handling the drive. Do not touch PCAs except for setting.  
(2)  
Unpackaging  
a) Use a flat work area. Check that the "This Side Up" sign side is up. Handle the package  
on soft material such as a rubber mat, not on hard material such as a desk.  
b) Be careful not to give excess pressure to the internal unit when removing cushions.  
c) Be careful not to give excess pressure to the PCAs and interface connector when removing  
the drive from the antistatic bag.  
d) Do not remove the sealing label or cover of the DE and screws.  
C141-E035-01EN  
5 - 1  
(3)  
Installation  
a) Do not attempt to connect or disconnect connections when power is on. The only pin  
settings that may be altered are pins 13, 14 (Write Protect) in CN7.  
b) Do not move the drive when power is turned on or until the drive completely stops (for 30  
seconds) after power is turned off.  
(4)  
Packaging  
a) Store the drive in an antistatic vinyl bag with a desiccant (silica gel).  
b) It is recommended to use the same cushions and packages as those at delivery. If those at  
delivery cannot be used, use a package with shock absorption so that the drive is free from  
direct shocks. In this case, fully protect the PCAs and interface connector so that they are  
not damaged.  
c) Indicate "This Side Up" and "Handle With Care" on the outside of the package so that it is  
not turned over.  
(5)  
Delivery  
a) When delivering the drive, provide packaging and do not turn it over.  
b) Minimize the delivery distance after unpacking and avoid shocks and vibrations with  
cushions. For the carrying direction at delivery, use one of the mount allowable directions  
in Subsection 4.2.2 (vertical direction is recommended).  
(6)  
Storage  
a) Provide vaporproof packaging for storage.  
b) The storage environment must satisfy the requirements specified in Subsection 2.1.3 when  
the drive is not operating.  
c) To prevent condensation, avoid sudden changes in temperature.  
5 - 2  
C141-E035-02EN  
5.2  
Connections  
Figure 5.1 shows examples of connection modes between the host system and the IDD. For  
the 16-bit SCSI, up to 16 devices including the host adapter, IDD, and other SCSI devices can  
be connected to the SCSI bus in arbitrary combinations. Install a terminating resistor on the  
SCSI device connected to both ends of the SCSI cable.  
See Section 4.4 for the cable connection requirements and power cable connections.  
Connecting one IDD  
(1)  
(2)  
Connecting more than one IDD (single host)  
Figure 5.1 SCSI bus connections (1 of 2)  
C141-E035-02EN  
5 - 3  
(3)  
Connecting more than one IDD (multi-host)  
Figure 5.1 SCSI bus connections (2 of 2)  
5 - 4  
C141-E035-01EN  
5.3  
Setting Terminals  
The user must set the following terminals and SCSI terminating resistor before installing the  
IDD in the system.  
·
Setting terminal:  
CN6, CN7  
Figures 5.2 shows the setting terminal position of SP model. Figures 5.3 shows SP models for  
allocation and default settings.  
CAUTION  
1. The user must not change the setting of terminals not described in this  
section. Do not change setting status set at factory shipment.  
2. Do not change the setting of terminals except following setting pins  
during the power is turned on.  
·
Write protect  
MAx3xxxSP: CN7 13-14  
3. To short the setting terminal, use the short plug attached when the  
device is shipped from the factory.  
CN6  
1
6
CN1  
15/16  
CN7  
1/2  
Figure 5.2 MAx3xxxSP setting terminals position  
C141-E035-02EN  
5 - 5  
Figure 5.3 Setting terminals (MAx3xxxSP)  
5 - 6  
C141-E035-02EN  
5.3.1 SCSI ID setting  
(1)  
SCA type 16-bit SCSI model (MAx3xxxSC)  
There is no SCSI ID setting terminal for SCA type model. Set the SCSI ID using ID0, ID1,  
ID2, and ID3 signals on the SCSI interface connector (CN1).  
(2)  
Single-ended 16-bit SCSI model (MAx3xxxSP)  
Table 5.1 shows the SCSI ID setting. Refer to Figures 5.2 and 5.3 for connector positioning  
and allocation.  
IMPORTANT  
When the SCSI ID is set using the external operator panel  
connector CN1, all pins listed in Table 5.1 should be open. If any  
of pins are shorted, unexpected SCSI ID is set.  
Table 5.1  
SCSI ID setting (single-ended 16-bit SCSI model: MAx3xxxSP)  
SCSI ID  
MAx3xxxSP (CN7)  
5-6  
3-4  
1-2  
5-6  
0
Open  
Open  
Open  
Open  
Open  
Open  
Open  
Open  
Short  
Short  
Short  
Short  
Short  
Short  
Short  
Short  
Open  
Open  
Open  
Open  
Short  
Short  
Short  
Short  
Open  
Open  
Open  
Open  
Short  
Short  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
Open  
Short  
1
2
3
4
5
6
7
8
9
10  
11  
12  
13  
14  
15 (*1)  
*1 Set at factory shipment  
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5 - 7  
IMPORTANT  
1. Set the SCSI ID so that there are no duplicates between SCSI devices  
on the same SCSI bus.  
2. The priority of SCSI bus use in ARBITRATION phase is determined by  
SCSI ID as follows:  
7 > 6 > 5 > 4 > 3 > 2 > 1 > 0 > 15 > 14 > 13 > 12 > 11 > 10 > 9 > 8  
5.3.2 Each mode setting  
(1)  
Setting terminal power supply  
Refer to Table 5.2 for controlling the supply of power from the drive to the SCSI terminal  
resistance power source (TERMPOW). However, this setting may not be used with SCA2  
type 16 bit-SCSI (MAx3xxxSC). For information on MAx3xxxSP, refer to Figures 5.2 and  
5.3.  
Table 5.2  
Setting SCSI terminal power supply (single-ended 16-bit SCSI model: MAx3xxxSP)  
Supply on/off of SCSI terminating resistor power from IDD  
CN6 1-2  
Open  
Supply off  
Supply on  
Short (*1)  
*1 Setting at factory shipment  
(2)  
Motor start mode  
Set how to control the starting of the IDD spindle motor according to Table 5.3. This setting  
only determines the operation mode when the power supply is turned on or the microcode is  
downloaded. In both modes, stopping or restarting the spindle motor can be controlled by  
specifying the START/STOP UNIT command.  
This setting is not provided for SCA2 type 16-bit SCSI model (MAx3xxxSC).  
For information on MAx3xxxSP, refer to Figures 5.2 and 5.3.  
Table 5.3  
Motor start mode setting (single-ended 16-bit SCSI model: MAx3xxxSP)  
Start timing of the spindle motor  
CN6 3-4  
Open  
Starting of the motor is controlled with the START/STOP UNIT command.  
The motor is started immediately after the power supply is turned on or the  
microcode is downloaded.  
Short (*1)  
*1 Setting at factory shipment  
Refer to Chapter 3 of the SCSI Logical Interface Specifications for details of the  
START/STOP UNIT command.  
5 - 8  
C141-E035-02EN  
5.3.3 Write protect, terminating resistor setting  
(1)  
Write protect  
When the write protect function is enabled, writing to the disk medium is disabled. The write  
protect function setting is not provided to the SCA2 type 16-bit SCSI model (MAx3xxxSC).  
For information on MAx3xxxSP, refer to Figure 5.2 and 5.3.  
Table 5.4  
Write protect setting (single-ended 16-bit SCSI model: MAx3xxxSP)  
Write protect  
MAx3xxxSP  
CN7 13-14  
Open (*1)  
Short  
Write operation is enabled.  
Write operation is disable.  
*1 Setting at factory shipment  
(2)  
Connection of terminating resistor on SCSI interface  
a. SCA2 type 16-bit SCSI model (MAx3xxxSC)  
Since there is no SCSI terminating resistor on the SCSI interface for SCA2 type 16-bit  
SCSI, there is no setting on the IDD.  
b. Single-ended 16-bit SCSI model (MAx3xxxSP)  
Setting terminals CN6 5-6 set whether to use the terminating resistor circuit on the SCSI  
interface provided for the IDD (see Table 5.5).  
IMPORTANT  
When the external operator panel is connected using the external  
operator panel connector CN1, this setting is effective only when  
the A9 pin (TERM-ON) is open.  
Table 5.5  
Setting of connection of terminating resistor on SCSI interface  
(single-ended 16-bit SCSI model: MAx3xxxSP)  
Connecting SCSI interface terminating resistor  
MAx3xxxSP  
CN6 5-6  
Open  
Terminating resistor circuit is not connected.  
Terminating resistor circuit is connected.  
* Set at factory shipment  
Short *  
C141-E035-02EN  
5 - 9  
5.3.4 Mode settings  
In addition to the previously described settings using setting terminals, the IDD is provided  
with several mode settings. The mode settings are enabled by specifying the CHANGE  
DEFINITION command. Table 5.6 lists the mode settings and their settings at factory  
shipment.  
Refer to Section 3.1.4 of the SCSI Logical Interface Specifications for details of the command.  
Table 5.6  
Default mode settings (by CHANGE DEFINITION command)  
Mode setting  
Contents  
SCSI-2  
SCSI level  
SYNCHRONOUS DATA TRANSFER REQUEST message  
sending  
Sent from IDD  
UNIT ATTENTION report mode  
Reselection retry count  
Reported  
Not restricted  
Sent from IDD  
250 ms  
WIDE DATA TRANSFER REQUEST message sending  
Reselection time-out delay  
0 sec (MAx3xxxSP)  
12 sec × SCSI ID  
(MAx3xxxSC)  
Spindle motor start delay time  
5 - 10  
C141-E035-02EN  
5.4  
5.4.1 Check before mounting  
Reconfirm if the setting terminals are set correctly before mounting the drive in the system  
Mounting Drives  
cabinet. For setting terminals location, see Section 5.3.  
(1)  
Single-ended 16-bit SCSI model (MAx3xxxSP)  
Reconfirm if the setting terminals are set correctly according to Table 5.7.  
Table 5.7  
Setting check list (MAx3xxxSP)  
Setting contents  
(Check item)  
Setting  
position  
No.  
Check  
Remarks  
Setting  
terminal  
CN6  
1
2
3
Terminal power supply  
Motor start mode  
CN6  
CN6  
1 - 2  
3 - 4  
5 - 6  
Short  
Short  
Short  
Open  
Open  
Open  
Connection of terminating CN6  
resistor on SCSI interface  
Setting contents  
(Check item)  
Setting  
position  
No.  
1
Check  
(SCSI ID = __)  
Remarks  
Setting  
terminal  
CN7  
SCSI ID  
CN7  
7 - 8  
5 - 6  
3 - 4  
1 - 2  
2
Write protect  
CN7 13 - 14  
Short  
Open  
5.4.2 Mounting procedures  
Since mounting the drive depends on the system cabinet structure, determine the work  
procedures considering the requirements specific to each system. The general mounting  
method and items to be checked are shown below.  
See Subsection 4.2 for the details of requirements for installing the IDD.  
1) With a system to which an external operator panel is mounted, if it is difficult to access the  
connector after the drive is mounted on the system cabinet, connect the external operator  
panel cable before mounting the drive.  
2) Fix the drive in the system cabinet with four mounting screws as follows:  
·
The drive has 10 mounting holes (both sides: 3 ´ 2, bottom: 4). Fix the drive by  
using four mounting holes of both sides or the bottom.  
C141-E035-01EN  
5 - 11  
·
·
Use mounting screws whose lengths inside the drive mounting frame are 4 mm or less  
when the screws are tightened (see Figure 4.6).  
When mounting the drive, be careful not to damage parts on the PCAs.  
3) Check that the DE (signal ground) does not touch the system cabinet chassis (frame  
ground). There must be a 2.5 mm or more space between the DE and chassis (see Figure  
4.6).  
5.5  
Connecting Cables  
Connect the IDD and system with the following cables. See Section 4.4 for further details of  
the requirements for IDD connector positions and connecting cables.  
·
·
·
·
Power cable  
SCSI cable  
External operator panel cable (if required)  
Spindle sync cable  
The general procedures and notes on connecting cables are described below. Especially, pay  
attention to the inserting direction of each cable connector.  
CAUTION  
1. Check that system power is off before connecting or disconnecting  
cables.  
2. Do not connect or disconnect cables when power is on.  
a) Connect power cable.  
b) Connect the external operator panel (if required for system).  
c) Connect the SCSI cable.  
d) Fix the cables so that they do not touch the DE and PCAs, or so that the smooth flow of  
the cooling air in the system cabinet is assured.  
5 - 12  
C141-E035-02EN  
CAUTION  
1. Be careful of the insertion directions of the SCSI connectors. With the  
system in which terminating resistor power is supplied via the SCSI  
cable, if the power is turned on, the overcurrent protection fuse of the  
terminating resistor power supplier may be blown or the cable may be  
burnt if overcurrent protection is not provided.  
When the recommended parts listed in Table 4.1 are used, inserting  
the cables in the wrong direction can be prevented.  
2. To connect SCSI devices, be careful of the connection position of the  
cable. Check that the SCSI device with the terminating resistor is the  
last device connected to the cable.  
5.6  
Confirming Operations after Installation and Preparation for use  
5.6.1 Confirming initial operations  
This section describes the operation check procedures after power is turned on. Since the  
initial operation of the IDD depends on the setting of the motor start mode, check the initial  
operation by either of the following procedures.  
(1)  
Initial operation in the case of setting so that motor starts at powering-on  
a) When power is turned on, the LED blinks an instant and the IDD executes initial self-  
diagnosis.  
b) If an error is detected in the initial self-diagnosis, the LED on the front panel blinks  
periodically.  
Remark:  
The spindle motor may or may not start rotating in this stage.  
c) When the IDD status is idle, the LED on the front panel remains off (when the initiator  
accesses the IDD via the SCSI bus, the LED lights).  
(2)  
Initial operation in the case of setting so that motor starts with START/STOP command  
a) When power is turned on, the LED blinks an instant and the IDD executes initial self-  
diagnosis.  
b) If an error is detected in the initial self-diagnosis, the LED on the front panel blinks.  
C141-E035-02EN  
5 - 13  
c) The spindle motor does not start rotating until the START/STOP UNIT command for the  
start is issued. The INIT needs to issue the START/STOP UNIT command to start the  
spindle motor by the procedure in Subsection 5.6.2.  
d) The disk drive enters the READY status in 30 seconds after the START/STOP UNIT  
command is issued. At this time, the IDD reads "system information" from the system  
space on the disk.  
e) The LED blinks during command execution.  
(3)  
Check items at illegal operation  
a) Check that cables are mounted correctly.  
b) Check that power and voltages are supplied correctly (measure them with the IDD power  
connection position).  
c) Check the setting of each setting terminal. Note that the initial operation depends on the  
setting of the motor start mode and LED display requirements.  
d) If an error is detected in initial self-diagnosis the LED on the front panel blinks. In this  
case, it is recommended to issue the REQUEST SENSE command from the initiator (host  
system) to obtain information (sense data) for error analysis.  
IMPORTANT  
The LED lights during the IDD is executing a command.  
However, in same commands, the lighting time is only an instant.  
Therefore, it seems that the LED blinks or the LED remains off.  
5 - 14  
C141-E035-02EN  
5.6.2 Checking SCSI connection  
When the initial operation is checked normally after power is turned on, check that the IDD is  
connected to the SCSI bus from the host system. Although checking the connection depends  
on the structure of the host system, this section describes the general procedures.  
(1)  
Checking procedure  
Issuing the commands and determining the end status depends on the start mode of the spindle  
motor and UNIT ATTENTION report mode (specified with setting terminal). Figure 5.4  
shows the recommended checking procedure for the mode that the motor starts when power is  
turned on. Figure 5.5 shows for the mode that the motor starts by the START/STOP  
command. In these recommended checking procedures, following items are checked.  
Note:  
Following steps a) to e) correspond to a) to e) in Figures 5.4 and 5.5.  
a) Issue the TEST UNIT READY command and check that the IDD is connected  
correctly to the SCSI bus and the initial operation after power is turned on ended  
normally. The command issue period of the TEST UNIT READY command shall be  
more than 20 ms.  
b)  
To control starting of the spindle motor from the host system, issue the  
START/STOP UNIT command to start the spindle motor.  
c) Check the SCSI bus operations with the WRITE BUFFER and READ BUFFER  
commands. Use data whose data bus bits change to 0 or 1 at least once. (Example:  
Data with an increment pattern of X'00' to X'FF')  
d) Start the IDD self-diagnostic test with the SEND DIAGNOSTIC command and check  
the basic operations of the controller and disk drive.  
C141-E035-02EN  
5 - 15  
Motor starts when power is turned on  
Figure 5.4 Checking the SCSI connection (A)  
5 - 16  
C141-E035-02EN  
Motor starts by START/STOP command  
Figure 5.5 Checking the SCSI connection (B)  
C141-E035-02EN  
5 - 17  
(2)  
Checking at abnormal end  
a) When sense data can be obtained with the REQUEST SENSE command, analyze the sense  
data and retry recovery for a recoverable error. Refer to Chapter 4 of SCSI Logical  
Interface Specifications for further details.  
b) Check the following items for the SCSI cable connection:  
·
·
·
All connectors including other SCSI devices are connected correctly.  
The terminating resistor is mounted on both ends of the cable.  
Power is connected to the terminating resistor.  
c) Check the setting of the terminals. Note that the checking procedure of SCSI connection  
differs depending on the setting of the motor start mode and UNIT ATTENTION report  
mode.  
5.6.3 Formatting  
Since the disk drive is formatted with a specific (default) data format for each model (part  
number) when shipped from the factory, the disk need not be formatted (initialized) when it is  
installed in the system.  
However, when the system needs data attributes different from the default format, all sides of  
the disk must be formatted (initialized) according to the procedures below.  
The user can change the following data attributes at initialization:  
·
·
·
Logical data block length  
Number of logical data blocks or number of cylinders in the user space  
Alternate spare area size  
This section outlines the formatting at installation. Refer to Chapters 3 and 5 of SCSI Logical  
Interface Specifications for further details.  
(1)  
MODE SELECT/MODE SELECT EXTENDED command  
Specify the format attributes on the disk with the MODE SELECT or MODE SELECT  
EXTENDED command. The parameters are as follows.  
a. Block descriptor  
Specify the size (byte length) of the logical data block in the "data block length" field. To  
explicitly specify the number of logical data blocks, specify the number in the "number of  
data blocks" field. Otherwise, specify 0 in "number of data blocks" field. In this case, the  
number of logical data blocks after initialization is determined by the value specified in the  
format parameter (page code = 3) and drive parameter (page code = 4).  
5 - 18  
C141-E035-02EN  
b. Format parameter (page code = 3)  
Specify the number of spare sectors for each cylinder in the "alternate sectors/zone" field  
and specify the number of tracks for alternate cylinders (= number of alternate cylinders ´  
number of disk drive heads) in the "alternate tracks/zone" field. It is recommended not to  
specify values smaller than the IDD default value in this field.  
c. Drive parameter (page code = 4)  
To explicitly specify the number of cylinders in the user space, specify the number in the  
"number of cylinders" field. Note that the number of alternate cylinders specified by the  
format parameter (page code = 3) is included in the number of cylinders in the user space.  
When the number of cylinders need not be specified, specify 0 or the default value in the  
"number of cylinders" field. In this case, either of the smaller value between the number  
of cylinders to allocate the number of logical data blocks specified in the "number of data  
blocks" field of the block descriptor or the maximum number of cylinders that can be used  
as the user space on the disk drive is allocated in the user space. When 0 is specified both  
in the "number of cylinders" field and the "number of data blocks" field of the block  
descriptor, the maximum number of cylinders that can be used as the user space on the  
disk drive is allocated in the user space.  
(2)  
FORMAT UNIT command  
Initialize all sides of the disk with the FORMAT UNIT command. The FORMAT UNIT  
command initializes all sides of the disk using the P lists, verifies data blocks after  
initialization, and allocates an alternate block for a defect block detected with verification.  
With initialization, the value "00" is written into all bytes of all logical data blocks. Only the  
position information of defect blocks detected with verification is registered in the G list. The  
specifications are as follows:  
a. Specifying CDB  
Specify 0 for the "FmtData" bit and the "CmpLst" bit on CDB, 000 for the "Defect List  
Format" field, and data pattern written into the data block at initialization for the  
"initializing data pattern" field.  
b. Format parameter  
When the values in step a. are specified with CDB, the format parameter is not needed.  
C141-E035-02EN  
5 - 19  
5.6.4 Setting parameters  
The user can specify the optimal operation mode for the user system environments by setting  
the following parameters with the MODE SELECT or MODE SELECT EXTENDED  
command:  
·
·
·
·
Error recovery parameter  
Disconnection/reconnection parameter  
Caching parameter  
Control mode parameter  
With the MODE SELECT or MODE SELECT EXTENDED command, specify 1 for the "SP"  
bit on CDB to save the specified parameter value on the disk. This enables the IDD to operate  
by using the parameter value set by the user when power is turned on again. When the system  
has more than one INIT, different parameter value can be set for each INIT.  
When the parameters are not set or saved with the MODE SELECT or MODE SELECT  
EXTENDED command, the IDD sets the default values for parameters and operates when  
power is turned on or after reset. Although the IDD operations are assured with the default  
values, the operations are not always optimal for the system. To obtain the best performance,  
set the parameters in consideration of the system requirements specific to the user.  
This section outlines the parameter setting procedures. Refer to Chapter 3 of SCSI Logical  
Interface Specifications for further details of the MODE SELECT and MODE SELECT  
EXTENDED commands and specifying the parameters.  
IMPORTANT  
1. At factory shipment of the IDD, the saving operation for the MODE  
SELECT parameter is not executed. So, if the user does not set  
parameters, the IDD operates according to the default value of each  
parameter  
2. The model select parameter is not saved for each SCSI ID of but as  
the common parameter for all IDs. In the multi-INIT System,  
parameter setting cannot be changed for each INIT.  
3. Once parameters are saved, the saved value is effective as long as  
next saving operation is executed from the INIT. For example, even if  
the initialization of the disk is performed by the FORMAT UNIT  
command, the saved value of parameters described in this section is  
not affected.  
4. When the IDD, to which the saving operation has been executed on a  
system, is connected to another system, the user must pay attention to  
that the IDD operates according to the saved parameter value if the  
saving operation is not executed at installation.  
5 - 20  
C141-E035-02EN  
5. The saved value of the MODE SELECT parameter is assumed as the  
initial value of each parameter after the power-on, the RESET  
condition, or the BUS DEVICE RESET message. The INIT can  
change the parameter value temporary (actively) at any timing by  
issuing the MODE SELECT or MODE SELECT EXTENDED  
command with specifying "0" to the SP bit in the CDB.  
(1)  
Error recovery parameter  
The following parameters are used to control operations such as IDD internal error recovery:  
a. Read/write error recovery parameters (page code = 1)  
Parameter  
Default value  
1 (enabled)  
• ARRE:  
Automatic alternate block allocation at read  
operation  
• TB:  
Uncorrectable data transfer to the INIT  
Immediate correction of correctable error  
Report of recovered error  
1 (enabled)  
1 (enabled)  
0 (disabled)  
0 (Correction is  
enabled.)  
• EER:  
• PER:  
• DCR:  
Suppression of ECC error correction  
• Retry count at read operation  
• Retry count at write operation  
• Recovery time limit  
63  
0
30 sec  
b. Verify error recovery parameters (page code = 7)  
Parameter  
Default value  
• ERR:  
• PER:  
• DTE:  
Immediate correction of recoverable error  
Report of recovered error  
Stop of command processing at successful  
error recovery  
1 (enabled)  
0 (disabled)  
0 (Processing is  
continued.)  
• DCR:  
Suppression of ECC error correction  
0 (Correction is  
enabled.)  
• Retry count at verification  
63  
c. Additional error recovery parameters (page code = 21)  
Parameter  
Default value  
15  
• Retry count at seek error  
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5 - 21  
Notes:  
1. The user can arbitrarily specify the following parameters according to the system  
requirements:  
·
·
·
ARRE  
TB  
PER  
2. The user also can arbitrarily specify parameters other than the above. However, it is  
recommended to use the default setting in normal operations.  
(2)  
Disconnection/reconnection parameters (page code = 2)  
The following parameters are used to optimize the start timing of reconnection processing to  
transfer data on the SCSI bus at a read (READ or READ EXTENDED command) or write  
operation (WRITE, WRITE EXTENDED, or WRITE AND VERIFY command) of the disk.  
Refer to Chapter 2 of SCSI Logical Interface Specifications for further details.  
a. Disconnection/reconnection parameters (page code = 2)  
Parameter  
Default value  
20 (HEX)  
• Buffer full ratio  
• Buffer empty ratio  
20 (HEX)  
Notes:  
1. In a system without the disconnection function, these parameters need not be  
specified.  
2. Determine the parameter values in consideration of the following performance factors  
of the system:  
·
·
·
Time required for reconnection processing  
Average data transfer rate of the SCSI bus  
Average amount of processing data specified with a command  
Refer to Chapter 2 of SCSI Logical Interface Specifications for how to obtain the  
rough calculation values for the parameter values to be set. It is recommended to  
evaluate the validity of the specified values by measuring performance in an operation  
status under the average system load requirements.  
5 - 22  
C141-E035-02EN  
(3)  
Caching parameters  
The following parameters are used to optimize IDD Read-Ahead caching operations under the  
system environments. Refer to Chapter 2 of SCSI Logical Interface Specifications for further  
details.  
a. Read caching parameters  
Parameter  
Default value  
0 (enabled)  
0 (disabled)  
• RCD:  
• WCE:  
• MS:  
Disabling Read-Ahead caching operations  
Write Cache Enable  
Specifying the multipliers of "minimum  
prefetch" and "maximum prefetch"  
parameters  
0 (Specifying  
absolute value)  
• DISC:  
Prefetch operation after track switching  
during prefetching  
0 (inhibit)  
• Number of blocks for which prefetch is suppressed  
• Minimum prefetch  
X'FFFF'  
X'0000'  
• Maximum prefetch  
X'0XXX'  
(Equivalent to  
122 KB)  
• Number of blocks with maximum prefetch restrictions  
• Number of segments  
X'FFFF'  
X'4'  
Notes:  
1. When Read-Ahead caching operations are disabled by the caching parameter, these  
parameter settings have no meaning except write cache feature.  
2. Determine the parameters in consideration of how the system accesses the disk.  
When the access form is not determined uniquely because of the processing method,  
the parameters can be re-set actively.  
3. For sequential access, the effective access rate can be increased by enabling Read-  
Ahead caching operations and Write Cache feature.  
(4)  
Control mode parameters  
The following parameters are used to control the tagged queuing and error logging.  
C141-E035-02EN  
5 - 23  
a. Control mode parameters  
Parameter  
• Queue algorithm modifier  
Default value  
0 (Ordering is  
executed by read  
command only.)  
• QErr:  
Resume or abort remaining suspended  
commands after sense pending state  
0 (command is  
resumed)  
• DQue:  
Disabling tagged command queuing  
0 (enabled)  
5.7  
Dismounting Drives  
Since dismounting the drive to check the setting terminals, change the setting, or change the  
drive depends on the structure of the system cabinet, the work procedures must be determined  
in consideration of the requirements specific to the system. This section describes the general  
procedures and notes on dismounting the drive.  
CAUTION  
1. Dismount the drive after disconnecting system power. Do not remove  
mounting screws holding the cables and drive while power is on.  
2. Do not move the drive until it completely stops (30 seconds after  
spindle motor is stopped with START/STOP UNIT command or after  
power is turned off).  
a) Remove the power cable.  
b) Remove the SCSI cable.  
c) When the external operator panel is mounted, remove the cable. If it is difficult to access  
the connector position, the cable may be removed after step e).  
d) Remove the DC ground cable.  
e) Remove the four mounting screws securing the drive, then remove the drive from the  
system cabinet.  
f) To store or transport the drive, keep it in an antistatic bag and provide packing (see Section  
5.1).  
5 - 24  
C141-E035-02EN  
CHAPTER 6  
DIAGNOSTICS AND MAINTENANCE  
6.1 Diagnostics  
6.2 Maintenance Information  
This chapter describes diagnostics and maintenance information.  
6.1  
Diagnostics  
6.1.1 Self-diagnostics  
The IDD has the following self-diagnostic function. This function checks the basic operations  
of the IDD.  
·
·
Initial self-diagnostics  
Online self-diagnostics (SEND DIAGNOSTIC command)  
Table 6.1 lists the contents of the tests performed with the self-diagnostics. For a general  
check of the IDD including the operations of the host system and interface, use a test program  
that runs on the host system (see Subsection 6.1.2).  
Table 6.1  
Self-diagnostic functions  
C141-E035-02EN  
6 - 1  
Brief test contents of self-diagnostics are as follows.  
a. Hardware function test  
This test checks the basic operation of the controller section, and contains following test.  
·
·
·
·
RAM (microcode is stored)  
Peripheral circuits of microprocessor (MPU)  
Memory (RAM)  
Data buffer  
b. Seek test  
This test checks the positioning operation of the disk drive using several seek modes (2  
points seek, 1 position sequential seek, etc.). The positioning operation is checked with  
confirming the physical address information by reading the ID field (LBA) from the data  
block on track 0 after completion of the seek operation to the target cylinder.  
c. Write/read test  
This test check the write/read function by using the Internal test space of the disk drive.  
(1)  
Initial self-diagnostics  
When power is turned on, the IDD starts initial self-diagnostics. The initial self-diagnostics  
checks the basic operations of the hardware functions.  
If an error is detected in the initial self-diagnostics, the LED on the drive front panel blinks. In  
this status, the IDD posts the CHECK CONDITION status to all I/O operation requests other  
than the REQUEST SENSE command. When the CHECK CONDITION status is posted, the  
INIT should issue the REQUEST SENSE command. The sense data obtained with the  
REQUEST SENSE command details the error information detected with the initial self-  
diagnostics.  
Even if CHECK CONDITION status and sense data are posted, the LED continues blinking.  
Only when the SCSI bus is reset, the BUS DEVICE RESET message is issued, or the power is  
turned off or re-turned on, this status can be cleared. When this status is cleared, the IDD  
executes the initial self-diagnosis again.  
6 - 2  
C141-E035-03EN  
The IDD does not reply to the SCSI bus for up to 2 seconds after the initial self-diagnostics is  
started. After that, the IDD can accept the I/O operation request correctly, but the received  
command, except the executable commands under the not ready state (such as INQUIRY,  
START/STOP UNIT), is terminated with the CHECK CONDITION status (NOT READY  
[=2]/logical unit not ready [=04-00]) during the interval from the spindle motor becomes  
stable to the IDD becomes ready. The executable command under the not ready state is  
executed in parallel with the initial self-diagnostics, or is queued by the command queuing  
feature and is executed after completion of the initial self-diagnostics. When the command  
that comes under the exception condition of the command queuing is issued at that time, the  
IDD posts the BUSY status for the command. When the error is detected during the initial  
self-diagnostics, the CHECK CONDITION status is posted for all commands that were  
stacked during the initial self-diagnostics. For the command execution condition, refer to  
Section 1.4 and Subsection 1.7.4 in SCSI Logical Interface Specifications.  
(2)  
Online self-diagnostics (SEND DIAGNOSTIC command)  
The INIT can make the IDD execute self-diagnostics by issuing the SEND DIAGNOSTIC  
command.  
The INIT specifies the execution of self-diagnostics by setting 1 for the SelfTest bit on the CDB in  
the SEND DIAGNOSTIC command and specifies the test contents with the UnitOfl bit.  
When the UnitOfl bit on the CDB is set to 0, the IDD executes the hardware function test only  
once. When UnitOfl bit is set to 1, the IDD executes the hardware function test, seek  
(positioning) test, and data write/read test for the Internal test space only once.  
a. Error recovery during self-diagnostics  
During the self-diagnostics specified by the SEND DIAGNOSTIC command, when the  
recoverable error is detected during the seek or the write/read test, the IDD performs the  
error recovery according to the MODE SELECT parameter value (read/write error recovery  
parameter, additional error recovery parameter) which the INIT specifies at the time of  
issuing the SEND DIAGNOSTIC command.  
PER  
0
Operation of self-diagnostics  
The self-diagnostics continues when the error is recovered. The self-  
diagnostics terminates normally so far as the unrecoverable error is not  
detected.  
1
The self-diagnostics continues when the error is recovered. If the  
unrecoverable error is not detected, the consecutive tests are executed till  
last test but the self-diagnostics terminates with error. The error  
information indicates that of the last recovered error.  
b. Reporting result of self-diagnostics and error indication  
When all specified self-diagnostics terminate normally, the IDD posts the GOOD status for  
the SEND DIAGNOSTIC command.  
C141-E035-03EN  
6 - 3  
When an error is detected in the self-diagnostics, the IDD terminates the SEND  
DIAGNOSTIC command with the CHECK CONDITION status. At this time only when  
an error is detected in the hardware function test, the LED on the front panel of the disk  
drive blinks.  
The INIT should issue the REQUEST SENSE command when the CHECK CONDITION  
status is posted. The sense data collected by the REQUEST SENSE command indicates  
the detail information of the error detected in the self-diagnostics.  
The IDD status after the CHECK CONDITION status is posted differs according to the  
type of the detected error.  
a) When an error is detected in the seek or write/read test, the subsequent command can  
be accepted correctly. When the command other than the REQUEST SENSE and NO  
OPERATION is issued from the same INIT, the error information (sense data) is  
cleared.  
b) When an error is detected in the hardware function test, the IDD posts the CHECK  
CONDITION status for all I/O operation request except the REQUEST SENSE  
command. The error status is not cleared and the LED on the front panel continues  
blinking even if the error information (sense data) is read. Only when the SCSI bus is  
reset, the BUS DEVICE RESET message is issued or the power is turned off or re-  
turned on, the status can be cleared. When this status is cleared, the IDD executes the  
initial self-diagnostics again (see item (1)).  
Refer to Chapter 3 of SCSI Logical Interface Specifications for further details of the  
command specifications.  
Notes:  
When the SEND DIAGNOSTIC command terminates with the CHECK CONDITION  
status, the INIT must collect the error information using the REQUEST SENSE command.  
The RECEIVE DIAGNOSTIC RESULTS command cannot read out the error information  
detected in the self-diagnostics.  
6.1.2 Test programs  
The basic operations of the IDD itself can be checked with the self-diagnostic function.  
However, to check general operations such as the host system and interface operations in a  
status similar to the normal operation status, a test program that runs on the host system must  
be used.  
The structure and functions of the test program depend on the user system requirements.  
Generally, it is recommended to provide a general input/output test program that includes  
SCSI devices connected to the SCSI bus and input/output devices on other I/O ports.  
Including the following test items in the test program is recommended to test the IDD  
functions generally.  
6 - 4  
C141-E035-02EN  
(1)  
(2)  
(3)  
(4)  
6.2  
Interface (SCSI bus) test  
The operations of the SCSI bus and data buffer on the IDD are checked with the WRITE  
BUFFER and READ BUFFER commands.  
Basic operation test  
The basic operations of the IDD are checked by executing self-diagnosis with the SEND  
DIAGNOSTIC command (see Subsection 6.1.1).  
Random/sequential read test  
The positioning (seek) operation and read operation are tested in random access and sequential  
access modes with the READ, READ EXTENDED, or VERIFY command.  
Write/read test  
By using a data block in the internal test space, the write/read test can be executed with an  
arbitrary pattern for a disk drive in which user data is stored.  
Maintenance Information  
6.2.1 Maintenance requirements  
(1)  
Preventive maintenance  
Preventive maintenance such as replacing air filters is not required.  
CAUTION  
Do not open the DE in the field because it is completely sealed.  
(2)  
Service life  
The service life under suitable conditions and treatment is as follows. The service life is  
depending on the environment temperature. Therefore, the user must design the system  
cabinet so that the average DE surface temperature is as possible as low.  
·
·
·
·
DE surface temperature: 45°C or less  
DE surface temperature: 46°C to 50°C  
DE surface temperature: 51°C to 55°C  
DE surface temperature: 56°C and more  
surface  
5 years  
4 years  
3 years  
strengthen cooling power so that DE  
temperature is 55°C or less.  
Even if the IDD is used intermittently, the longest service life is 5 years.  
C141-E035-02EN  
6 - 5  
Note:  
The "average DE surface temperature" means the average temperature at the DE surface  
throughout the year when the IDD is operating.  
(3)  
(4)  
Parts that can be replaced in the field  
The PCA cannot be replaced in the field. The DE cannot be replaced in the field.  
Service system and repairs  
Fujitsu has the service system and repair facility for the disk drive. Contact Fujitsu  
representative to submit information for replacing or repairing the disk drive. Generally, the  
following information must be included:  
a) IDD model, part number (P/N), revision number, serial number (S/N), and date of  
manufacturing  
b) Error status  
·
·
·
Date when the error occurred  
System configuration  
Environmental conditions (temperature, humidity, and voltage)  
c) Error history  
d) Error contents  
·
·
·
·
Outline of inconvenience  
Issued commands and specified parameters  
Sense data  
Other error analysis information  
CAUTION  
Save data stored on the disk drive before requesting repair.  
Fujitsu does not assume responsibility if data is destroyed during  
servicing or repair.  
6 - 6  
C141-E035-02EN  
See Section 5.1 for notes on packing and handling when returning the disk drive.  
6.2.2 Revision numbers  
The revision number of the disk drive is represented with a letter and a number indicated on  
the revision label attached to the DE. Figure 6.1 shows the revision label format.  
Machine revision  
Figure 6.1 Revision label  
(1)  
(2)  
Indicating revision number at factory shipment  
When the disk drive is shipped from the factory, the revision number is indicated by deleting  
numbers in the corresponding letter line up to the corresponding number with = (see Figure  
6.2).  
Changing revision number in the field  
To change the revision number because parts are replaced or other modification is applied in  
the field, the new level is indicated by enclosing the corresponding number in the  
corresponding letter line with (see Figure 6.2).  
Note:  
When the revision number is changed after the drive is shipped from the factory, Fujitsu  
issues "Engineering Change Request/Notice" in which the new revision number is  
indicated. When the user changes the revision number, the user should update the revision  
label as described in item (2) after applying the modification.  
C141-E035-02EN  
6 - 7  
At shipment  
Rev. A2  
Revising at field  
Rev. A3  
Figure 6.2 Indicating revision numbers  
6 - 8  
C141-E035-02EN  
APPENDIX A LOCATIONS OF CONNECTORS,  
SETTING TERMINALS, AND  
TERMINATING RESISTORS  
A.1 Locations of Connectors and Setting Terminals  
(MAx3xxxSC: SCA2 type 16-bit SCSI)  
A.2 Locations of Connectors and Setting Terminals  
(MAx3xxxSP: single-ended type 16-bit SCSI)  
This appendix shows the locations of connectors, setting terminals, and terminating resistor for 8- and  
16-bit SCSIs.  
C141-E035-02EN  
A - 1  
A.1  
Locations of Connectors and Setting Terminals  
(MAx3xxxSC: SCA2 type 16-bit SCSI)  
CN1  
(Viewed from bottom side)  
(Rear view)  
(MAA31xxSC)  
Pin 80  
Pin 41  
4.6±0.5  
Pin 1  
Pin 40  
(Rear view)  
(MAB30xxSC)  
Pin 80  
Pin 41  
Pin 1  
4.6±0.5  
Pin 40  
Figure A.1 Locations of connectors and setting terminals  
(MAx3xxxSC, SCA2 type 16-bit SCSI)  
A - 2  
C141-E035-02EN  
A.2  
Locations of Connectors and Setting Terminals  
(MAx3xxxSP : single-ended type 16-bit SCSI)  
CN6  
1
6
CN1  
15/16  
CN7  
1/2  
(Viewed from bottom side)  
(MAA31xxSP)  
(Rear View)  
Pin A11  
Pin 1  
Pin 1  
Pin A1  
Pin 34  
Pin 68  
Pin 35  
Pin A2  
Pin A12  
SCSI connector (CN1)  
Connector for external operator panel  
SCSI connector (CN1)  
(Rear view)  
(MAB31xxSP)  
Pin A1  
Pin A11  
Pin 34  
Pin 68  
Pin 1  
Pin 1  
Pin 35  
Pin A2  
Pin A12  
SCSI connector (CN1)  
Connector for external operator panel  
SCSI connector (CN1)  
Figure A.2 Locations of connectors and setting terminals  
(MAx3xxxSP, single-ended type 16-bit SCSI)  
C141-E035-02EN  
A - 3  
APPENDIX B SETTING TERMINALS  
B.1 Setting Terminals  
(MAx3xxxSP : Single-ended 16-bit SCSI)  
This appendix describes setting terminals.  
C141-E035-01EN  
B - 1  
B.1  
Setting Terminals (MAx3xxxSP : Single-ended 16-bit SCSI)  
Table B.1 Setting terminal: CN6 (MAx3xxxSP)  
Pins  
Setting item  
Setting contents  
5-6  
3-4  
1-2  
Open Does not supply terminating resistor power to SCSI  
bus  
Terminal power  
supply  
Short Supplies terminating resistor power to SCSI bus (*1)  
Started by the START/STOP UNIT command  
Started by turning the power supply on (*1)  
Disconnects terminating resistor circuit  
Motor start mode  
Open  
Short  
Connection of  
terminating  
resistor circuit on  
SCSI interface  
Open  
Short  
Connects terminating resistor circuit (*1)  
Note:  
See the description in Section 5.3 for details of the setting requirements and notes.  
B - 2  
C141-E035-01EN  
Table B.2 Setting terminal: CN7 (MAx3xxxSP)  
Setting item  
SCSI ID  
Pins  
5 - 6  
Setting contents  
13 - 14  
7 - 8  
3 - 4  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
Open  
Open  
Short  
Short  
1 - 2  
(Open) Open  
(Open) Open  
(Open) Open  
(Open) Open  
(Open) Short  
(Open) Short  
(Open) Short  
(Open) Short  
Open SCSI ID #0  
Short SCSI ID #1  
Open SCSI ID #2  
Short SCSI ID #3  
Open SCSI ID #4  
Short SCSI ID #5  
Open SCSI ID #6  
Short SCSI ID #7  
Open SCSI ID #8  
Short SCSI ID #9  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(Common to 8-bit and 16-bit SCSI)  
(16-bit SCSI only)  
Short  
Short  
Short  
Short  
Short  
Short  
Short  
Short  
Open  
Open  
Open  
Open  
Short  
Short  
Short  
Short  
(16-bit SCSI only)  
Open SCSI ID #10 (16-bit SCSI only)  
Short SCSI ID #11 (16-bit SCSI only)  
Open SCSI ID #12 (16-bit SCSI only)  
Short SCSI ID #13 (16-bit SCSI only)  
Open SCSI ID #14 (16-bit SCSI only)  
Short SCSI ID #15 (16-bit SCSI only)  
Write operation is enabled. (*1)  
(*1)  
Write protect  
Open  
Short  
Write operation is disabled.  
Note:  
See the description of Section 5.3 for details of the setting requirements and notes.  
C141-E035-01EN  
B - 3  
APPENDIX C CONNECTOR SIGNAL ALLOCATION  
C.1 SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI  
C.2 SCSI Connector Signal Allocation: single-ended type  
16-bit SCSI  
This appendix describes the connector signal allocation.  
C141-E035-02EN  
C - 1  
C.1  
SCSI Connector Signal Allocation: SCA2 type 16-bit SCSI  
Table C.1 SCSI connector (SCA2 type, 16-bit SCSI): CN1  
Pin No.  
Signal  
+12V (Charge)  
+12V  
Signal  
Pin No.  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
01  
02  
03  
04  
05  
06  
07  
08  
09  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
35  
36  
37  
38  
39  
40  
12V RETURN (GND)  
12V RETURN (GND)  
+12V  
12V RETURN (GND)  
+12V  
12V RETURN (MATED 1)  
Reserved (N.C.)  
Reserved (N.C.)  
–DB11  
Reserved (N.C.)  
Reserved (N.C.)  
GND  
–DB10  
GND  
–DB09  
GND  
–DB08  
GND  
–I/O  
GND  
–REQ  
GND  
–C/D  
GND  
–SEL  
GND  
–MSG  
GND  
–RST  
GND  
–ACK  
GND  
–BSY  
GND  
–ATN  
GND  
–DBP0  
GND  
–DB07  
GND  
–DB06  
GND  
–DB05  
GND  
–DB04  
GND  
–DB03  
GND  
–DB02  
GND  
GND  
–DB01  
–DB00  
GND  
–DBP1  
GND  
–DB15  
GND  
–DB14  
GND  
–DB13  
GND  
–DB12  
GND  
5V  
5V RETURN (MATED 2)  
5V RETURN (GND)  
5V RETURN (GND)  
–LED  
5V  
5V (Charge)  
– SPINDLE SYNC  
RMT START  
SCSI ID0  
SCSI ID2  
DLYD START  
SCSI ID1  
SCSI ID3  
C - 2  
C141-E035-02EN  
C.2  
SCSI Connector Signal Allocation: single-ended type 16-bit SCSI  
Table C.2 SCSI connector (single-ended type 16-bit SCSI): CN1  
Pin No.  
Signal  
GND  
Signal  
–DB12  
–DB13  
–DB14  
–DB15  
–DBP1  
–DB00  
–DB01  
–DB02  
–DB03  
–DB04  
–DB05  
–DB06  
–DB07  
–DBP0  
GND  
Pin No.  
35  
36  
37  
38  
39  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
01  
02  
03  
04  
05  
06  
07  
08  
09  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
33  
34  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
GND  
TERMPWR*  
TERMPWR*  
(Reserved)  
GND  
TERMPWR*  
TERMPWR*  
(Reserved)  
GND  
GND  
–ATN  
GND  
GND  
GND  
–BSY  
GND  
–ACK  
GND  
–RST  
GND  
–MSG  
–SEL  
GND  
GND  
–C/D  
GND  
–REQ  
GND  
–I/O  
GND  
–DB08  
–DB09  
–DB10  
–DB11  
GND  
GND  
GND  
*1 Power supply for the terminating resistor  
C141-E035-01EN  
C - 3  
APPENDIX D MODEL NAMES AND PRODUCT NUMBERS  
D.1 Model Names and Product Numbers  
This appendix lists model names (types) and product numbers.  
C141-E035-01EN  
D - 1  
D.1  
Model Names and Product Numbers  
Table D.1 MAA, MAB and MAC series model names and product numbers  
Data block  
length  
(at factory  
shipment)  
Total  
storage  
capacity  
(user area)  
Model name  
Mounting  
screw  
SCSI type  
Ultra SCSI  
Part number  
Remarks  
(type)  
1.6-inch height  
7,200 rpm  
10 disks  
MAA3182SP  
MAA3182SC  
MAB3091SP  
MAB3091SC  
MAB3045SP  
MAB3045SC  
MAC3091SP  
MAC3091SC  
MAC3045SP  
MAC3045SC  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
16-bit SE  
512B  
512B  
512B  
512B  
512B  
18.2 GB  
9.1 GB  
#6-32UNC CA01606-B922  
CA01606-B962  
19 heads  
1-inch height  
7,200 rpm  
5 disks  
#6-32UNC CA01606-B522  
CA01606-B562  
10 heads  
1-inch height  
7,200 rpm  
3 disks  
4.55 GB  
9.1 GB  
#6-32UNC CA01606-B322  
CA01606-B362  
5 heads  
1-inch height  
10,000 rpm  
5 disks  
#6-32UNC CA01682-B522  
CA01682-B562  
10 heads  
1-inch height  
10,000 rpm  
3 disks  
4.55 GB  
#6-32UNC CA01682-B322  
CA01682-B362  
5 heads  
Note:  
Only above models are available currently.  
SE: Single-ended  
MAx3xxxSC uses SCA-2 type connector.  
D - 2  
C141-E035-03EN  
APPENDIX E SCSI INTERFACE FUNCTIONS  
E.1 SCSI interface function specifications  
This appendix lists the SCSI interface functions provided for the IDD. Refer to the SCSI Logical  
Interface Specifications for details of each functions.  
C141-E035-02EN  
E - 1  
E.1  
SCSI interface function specifications  
Table E.1 SCSI interface function specifications (1 of 8)  
: Provided ´ : Not provided  
Item  
COMMAND COMPLETE  
SAVE DATA POINTER  
RESTORE POINTERS  
Specification  
(00)  
(02)  
O
O
O
(03)  
(TARG ® INIT)  
(INIT ® TARG)  
(04)  
O
DISCONNECT  
(04)  
´
INITIATOR DETECTED ERROR  
(05)  
O
ABORT  
(06)  
O
MESSAGE REJECT  
(07)  
O
NO OPERATION  
(08)  
O
MESSAGE PARITY ERROR  
LINKED COMMAND COMPLETE  
LINKED COMMAND COMPLETE WITH FLAG  
BUS DEVICE RESET  
(09)  
O
O
O
O
O
O
´
´
O
´
´
O
(0A)  
(0B)  
(0C)  
(0D)  
(0E)  
(0F)  
(10)  
1-byte  
length  
message  
ABORT TAG  
CLEAR QUEUE  
INITIATE RECOVERY  
RELEASE RECOVERY  
TERMINATE I/O PROCESS  
CONTINUE I/O PROCESS  
TARGET TRANSFER DISABLE  
IDENTIFY  
(11)  
(12)  
(13)  
(80-FF)  
Disconnect Privilege (DiscPriv) Bit  
Logical Unit Target (LUNTAR) Bit  
SIMPLE QUEUE TAG  
O
´
O
O
(20)  
(21)  
2-byte  
length  
HEAD OF QUEUE TAG  
ORDERED QUEUE TAG  
IGNORE WIDE RESIDUE  
message  
(22)  
O
(23)  
O (16 bit-SCSI only)  
Expansion MODIFY DATA POINTER  
message  
(01-00)  
´
O
SYNCHRONOUS DATA TRANSFER REQUEST (01-01)  
EXTENDED IDENTIFY  
WIDE DATA TRANSFER REQUEST  
UNIT ATTENTION  
(01-02)  
(01-03)  
´
O (16 bit-SCSI only)  
[VU] *(01-80)  
[VU] *(01-81)  
[VU] *(01-82)  
´
´
´
HALT I/O  
DIAGNOSTIC CONTROL  
*1 Fujitsu-specific function  
E - 2  
C141-E035-02EN  
Table E.1 SCSI interface function specifications (2 of 8)  
: Provided ´ : Not provided  
Item  
Specification  
TEST UNIT READY  
REZERO UNIT  
(00)  
(01)  
(03)  
(04)  
=0  
O
O
O
O
REQUEST SENSE  
FORMAT UNIT  
FmtData (format data)  
O
Interleave factor  
O (No interleave)  
Block address format defect listing  
Block address format defect listing  
=0  
´
´
¹ 0  
Byte-distance-from-index format defect listing =0  
Byte-distance-from-index format defect listing ¹ 0  
Physical sector address format defecting listing =0  
Physical sector address format defecting listing ¹ 0  
CmpLst (complete list)  
O
O
O
O
O
FOV (Format Options Valid)  
O
DPRY (Disable Primary)  
O
O
Command  
(Group 0)  
DCRT (Disable Certification)  
STPF (Stop Format)  
´
IP (Initialization Pattern)  
´
DSP (Disable Saving Parameters)  
Immed (Immediate)  
´
O
REASSIGN BLOCKS  
(07)  
(08)  
(0A)  
(0B)  
(12)  
O
O
O
O
READ  
WRITE  
SEEK  
INQUIRY  
O
EVPD (Enable Vital Product Data)  
O
Typical INQUIRY data  
VPD Page 0: VPD page code listing  
VPD Page 80: Device serial number  
VPD Page C0: Operation mode  
READ DEVICE CHARACTERISTICS  
PRIORITY RESERVE  
O (64 byte long)  
O
O
O
´
[VU] *(13)  
[VU] *(14)  
´
*1 Fujitsu-specific function  
C141-E035-02EN  
E - 3  
Table E.1 SCSI interface function specifications (3 of 8)  
: Provided ´ : Not provided  
Item  
Specification  
MODE SELECT  
(15)  
O
PF=(page format)  
O (Specified value  
ignored)  
Page 1: Read/write error recovery  
O (12 B: Savable)  
AWRE (Automatic Write Reallocation Enabled)  
´ (Specified value  
ignored)  
ARRE (Automatic Read Reallocation Enabled)  
O (Changeable)  
O (Changeable)  
O (Changeable)  
O (Changeable)  
O (Changeable)  
TB  
RC  
(Transfer Block)  
(Read Continuous)  
EER (Enable Early Recovery)  
PER (Post Error)  
Command  
(Group 0)  
DTE (Disable Transfer on Error)  
´ (Specified value  
ignored)  
DCR (Disable Correction)  
Retry count at read  
O (Changeable)  
O (Changeable)  
Correctable bit length  
O (Not changeable)  
Head offset count  
´
Data strobe offset count  
Retry count at write  
´
O (Changeable)  
O (Changeable)  
O (16 B: Savable)  
O (Changeable)  
O (Changeable)  
O (Not changeable)  
´
Recovery processing time restriction  
Page 2: Disconnection/reconnection  
Buffer-full ratio  
Buffer-empty ratio  
Bus inactivity restriction  
Disconnection time restriction  
Connection time restriction  
Maximum burst length  
´
´
DTDC (data transfer disconnect control)  
O (Changeable)  
*1 Fujitsu-specific function  
E - 4  
C141-E035-02EN  
Table E.1 SCSI interface function specifications (4 of 8)  
: Provided ´ : Not provided  
Item  
MODE SELECT (command)  
Page 3: Format parameter  
Number of tracks/zone  
Specification  
(15)  
O (24 B: Savable)  
O (Not changeable)  
O (Changeable)  
O (Not changeable)  
O (Not changeable)  
O (Not changeable)  
O (Changeable)  
O (No interleave)  
O (Not changeable)  
O (Not changeable)  
O (Not changeable)  
O (Not changeable)  
O (Not changeable)  
O (24 B: Savable)  
O (Changeable)  
O (Not changeable)  
´
Number of alternate sectors/zone  
Number of alternate tracks/zone  
Number of alternate tracks/drive  
Number of alternate sectors/track  
Data byte length/physical sector  
Interleave factor  
Track skew factor  
Cylinder skew factor  
SSEC/HSEC (Soft Sector/Head Sector)  
RMB (Removable)  
SURF (Surface)  
Page 4: Drive parameter  
Number of cylinders  
Command  
(Group 0)  
Number of heads  
“Write Precompensation” start cylinder  
“Reduced Write Current” start cylinder  
Drive step rate  
´
´
Landing zone cylinder  
´
RPL (Rotational Position Locking)  
Rotational synchronization offset  
Medium rotational speed  
Page 7: Verify error recovery  
EER (Enable Early Recovery)  
PER (Post Error)  
´
´
O (Not changeable)  
O (12 B: Savable)  
O (Changeable)  
O (Changeable)  
DTE (Disable Transfer on Error)  
´ (Specified value  
ignored)  
DCR (Disable Correction)  
Retry count at verification  
Correctable bit length  
O (Changeable)  
O (Changeable)  
O (Not changeable)  
O (Not changeable)  
Recovery processing time restriction  
*1 Fujitsu-specific function  
C141-E035-02EN  
E - 5  
Table E.1 SCSI interface function specifications (5 of 8)  
: Provided ´ : Not provided  
Item  
MODE SELECT (continued)  
Page 8: Caching parameter  
DISC (discontinuity)  
Specification  
(15)  
O (20 B: Savable)  
O (Not changeable)  
MS (Multiple Select)  
´
WCE (Write Cache Enable)  
RCD (Read Cache Disable)  
Demand Read Retention Priority  
Write Retention Priority  
Prefetch suppression block count  
Minimum prefetch  
O (Changeable)  
O (Changeable)  
´
´
´
´
Maximum prefetch  
O (Not changeable)  
O (Not changeable)  
O (Changeable)  
´
Maximum prefetch restriction block count  
Number of segments  
Buffer segment size  
Command  
(Group 0)  
Page A: Control mode page  
O (8 B: Savable)  
RLEC (Report Log Exception Condition)  
´ (Specified value  
ignored)  
Queue Algorithm modifier  
QErr (Queue Error management)  
DQue (Disable Queuing)  
O (Changeable)  
O (Changeable)  
O (Changeable)  
´
EECA (Enable Extended Contingent  
Allegiance)  
RAENP (Ready AEN Permission)  
UAAENP (Unit Attention AEN Permission)  
EAENP (Error Attention AEN Permission)  
Ready AEN Holdoff period  
´
´
´
´
Page 21: Additional error recovery  
RPR (Rounded Parameter Report)  
Retry count at seek error  
[VU] (*1)  
O (4 B: Savable)  
´
O (Changeable)  
RESERVE  
(16)  
O
O
´
Third party reserve function  
Extent reserve function  
Reserve condition change function  
(Superseding reserve)  
O
*1 Fujitsu-specific function  
E - 6  
C141-E035-02EN  
Table E.1 SCSI interface function specifications (6 of 8)  
: Provided ´ : Not provided  
Item  
Specification  
RELEASE  
(17)  
O
O
´
Third party reserve function  
Extent reserve function  
COPY  
MODE SENSE  
DBD (Disable Block Descriptor)  
Page 0 (Non-Parameter Transfer)  
START/STOP UNIT  
(18)  
´
(1A)  
O
O
O
O
O
O
O
(1B)  
Immed (Immediate)  
RECEIVE DIAGNOSTIC RESULTS  
SEND DIAGNOSTIC  
Command  
(Group 0)  
(1C)  
(1D)  
PF (Page Format)  
O (Specified value  
ignored)  
Self Test (Self Test)  
O
´
DevOfl (Device Offline)  
Unit Ofl (Unit Offline)  
O
O
O
´
Page 0: Specifiable page code listing  
Page 40: Logical/physical address conversion  
Page 80: Mode setup state report  
Page 81: Device-specific information  
REVENT/ALLOW MEDIUM REMOVAL  
SEARCH BLOCK HIGH  
SEARCH BLOCK EQUAL  
SEARCH BLOCK LOW  
READ CAPACITY  
[VU]*1  
[VU]*1  
´
(1E)  
´
[VU]*1 (20)  
[VU]*1 (21)  
[VU]*1 (22)  
(25)  
´
´
Command  
(Group 1)  
´
O
O
O
O
O
O
´
PMI (Parial Medium Indicator)  
READ EXTENDED  
(28)  
(2A)  
(2B)  
(2E)  
WRITE EXTENDED  
SEEK EXTENDED  
WRITE & VERIFY  
BytChk (Byte Check)  
Command  
(Group 0)  
VERIFY  
(2F)  
O
O
´
Third party reserve function  
SEARCH DATA HIGH  
SEARCH DATA EQUAL  
(30)  
(31)  
´
*1 Fujitsu-specific function  
C141-E035-02EN  
E - 7  
Table E.1 SCSI interface function specifications (7 of 8)  
: Provided ´ : Not provided  
Item  
Specification  
SEARCH DATA LOW  
(32)  
(33)  
(34)  
(35)  
(36)  
(37)  
´
´
´
O
´
O
O
O
O
´
SET LIMITS  
PRE-FETCH  
SYNCHRONIZE CACHE  
LOCK/UNLOCK CACHE  
READ DEFECT DATA  
Block address format  
Byte-distance-from-index format  
Physical sector address format  
COMPARE  
(39)  
(3A)  
(3B)  
COPY & VERIFY  
WRITE BUFFER  
´
Command  
(Group 0)  
O
O
O
O
O
O
O
O
O
O
O
O
´
O
O
O
O
´
´
´
O
O
O
O
Mode=‘000’ (Header & Data Mode)  
Mode=‘001’ (Header & Data Mode with Address)  
Mode=‘010’ (Data Mode)  
Mode=‘100’ (Download Microcode)  
Mode=‘101’ (Download Microcode and Save)  
READ BUFFER  
Mode=‘000’ (Header & Data Mode)  
(3C)  
Mode=‘001’ (Header & Data Mode with Address)  
Mode=‘010’ (Data Mode)  
Mode=‘011’ (Descriptor Mode)  
READ LONG  
CORRCT (Corrected)  
WRITE LONG  
(3E)  
(3F)  
(40)  
(41)  
CHANGE DEFINITION  
WRITE SAME  
LBdata (Logical Block Data)  
LBdata (Physical Block Data)  
LOG SELECT  
(4C)  
(4D)  
(55)  
(56)  
(57)  
(5A)  
Command  
(Group 2)  
LOG SENSE  
MODE SELECT EXTENDED  
RESERVE EXTENDED  
RESERVE EXTENDED  
MODE SENSE EXTENDED  
*1 Fujitsu-specific function  
E - 8  
C141-E035-02EN  
Table E.1 SCSI interface function specifications (8 of 8)  
: Provided ´ : Not provided  
Item  
DIAGNOSTIC WRITE DATA  
DIAGNOSTIC READ DATA  
FORMAT ID  
Specification  
[VU] (*1) (C1)  
[VU] (*1) (C2)  
[VU] (*1) (C4)  
[VU] (*1) (C6)  
[VU] (*1) (C8)  
[VU] (*1) (CA)  
[VU] (*1) (CD)  
[VU] (*1) (CE)  
[VU] (*1) (D1)  
[VU] (*1) (D2)  
[VU] (*1) (D8)  
[VU] (*1) (DA)  
´
´
´
´
´
´
´
´
´
´
´
´
SPACE ID & READ DATA  
DISPLACED ID  
READ ID  
Command  
(Group 6) DIAGNOSTIC FORMAT ID  
DIAGNOSTIC READ ID  
WRITE RAM  
READ RAM  
RECOVER DATA  
RECOVER ID  
Defective sector slip processing function  
O
O
´
O
O
Command link function  
Relative block addressing function  
Untagged queuing function  
Tagged command queuing function  
Contingent Allegiance (CA)  
O (Sense held for each  
Command  
(Group 6)  
INIT)  
Extended Contingent Allegiance (ECA)  
´
´
Asynchronous condition notification feature  
(AEN: async. event notification)  
Read-ahead cache feature  
Cache control feature  
DPO (disable page out)  
FUA (force unit access)  
Write cache feature  
GOOD  
O
´
´
´
O
O
O
O
O
O
O
O
O
O
´
(00)  
(02)  
(04)  
(08)  
(10)  
(14)  
(18)  
(22)  
(28)  
CHECK CONDITION  
CONDITION MET  
BUSY  
Status  
INTERMEDIATE  
INTERMEDIATE CONDITION MET  
RESERVATION CONFLICT  
COMMAND TERMINATED  
QUEUE FULL  
Non-extended format  
Extended format  
Sense data  
O (48 bytes long)  
O (Rev. 4.b)  
CCS (common command set) conformity  
*1 Fujitsu-specific function  
C141-E035-02EN  
E - 9  
Index  
– SYNC 4-19  
Command queuing feature 1-3  
Compactness 1-2  
Confirming Operations after Installation for use  
5-13  
– Spindle Sync 4-19  
16-bit SCSI 1-2, 4-15, 5-7  
8-bit SCSI 1-2  
Confirming initial operations 5-13  
Connection of terminating resistor 5-9  
Connection requirements 4-14  
Connections 5-3  
Connector signal Allocation C-2  
Connector signal allocation C-1  
Connectors of terminals location 4-14, 4-22  
Contact start/stop 1-8  
Continuous block processing 1-3  
Control mode parameters 5-23  
Controller circuit 1-9  
Current waveform 4-11  
Cylinder configuration 3-1, 3-2  
Cylinder skew 3-7  
A
AC noise filter 4-14  
Actuator 1-9  
Additional error recovery parameters 5-21  
Addressing of peripheral device 1-11  
Air circulation 1-9  
Air pressure adjustment hole 4-10  
Allowable input current 4-12  
Allowable input voltage 4-12  
Alternate area 3-11  
Alternate block allocation 3-12, 3-13, 3-14  
Alternate cylinder 3-5  
Alternate sector treatment 3-13  
Alternate spare area 3-5  
D
Atitute 2-4  
Automatic alternate block allocation 3-16  
Automatic alternate block reassignment 1-4  
Average DE surface temperature 2-6  
D list 3-12  
DC ground 4-27  
DE 1-9  
DISCON 4-20  
B
Data field 3-8  
Data format 3-1  
Data security at power-failure 2-6  
Data space 3-1  
Default 5-10  
Defect Management 3-12  
Defect list 3-12  
Defective block slipping 1-4  
Delivery 5-2  
Diagnosis 1-4  
BCRC 3-9  
Basic operation test 6-5  
Block address of user space 3-11  
Block descriptor 5-18  
Block descriptor 5-18  
Breather filter 1-9  
C
C list 3-12  
Diagnostics 6-1  
CE space 3-5  
CN1 4-16, C-2, C-3  
CN6 B-2  
CN7 4-17, B-3  
Diagnostics and maintenance 6-1  
Disable terminator connection 4-20  
Disconnecting drives 5-24  
Disconnection 5-22  
Disk configuration 1-8  
Disk enclosure 1-9  
Disks 1-5  
CSS 1-8  
Cable connection 4-21  
Cable connection requirements 4-24  
Cable length 4-26  
Caching parameters 5-23  
Changing revision number at factory shipment 6-  
7
Drive parameter 5-19  
Drive parameter 5-19  
E
Check before mounting 5-11  
Check items at illegal operation 5-14  
Checking SCSI connection 5-15, 5-16, 5-17  
Checking at abnormal end 5-18  
Checking procedure 5-15  
ECC 3-9  
Environmental requirements 2-4  
Environmental specifications 2-4  
Environmental temperature 4-8  
C141-E035-03EN  
IN-1  
Error indication of self-diagnostics 6-3  
Error rate 2-5  
Error recovery 1-4  
Error recovery during self-diagnostics 6-3  
Error recovery parameters 5-21  
External dimensions 4-1, 4-2, 4-3, 4-4, 4-5  
External inputs for operating terminating resistor  
4-20  
Limitation of side-mounting 4-6  
Location of connector A-2  
Logical data block addressing 3-11  
Low noise 1-5  
Low power consumption 1-5  
Low vibration 1-5  
M
External magnetic field 4-9  
MODE SELECT EXTENDED command 5-18  
MODE SELECT command 5-18  
MPU 1-8  
MR 1-8  
MTBF 2-5  
External operator panel 4-27, 4-28  
External operator panel circuit example 4-28  
External operator panel connector 4-16, 4-17  
External operator panel connector signals 4-18  
MTTR 2-5  
F
Magnet - Resistive 1-8  
Maintenance information 6-5  
Maintenance requirements 6-5  
Microcode downloading 1-8  
Microprocessing unit 1-9  
Mode setting 5-8  
FG 4-27  
FORMAT UNIT command 5-19  
Format capacity 3-10  
Format parameter 5-19  
Formatting 2-6  
Function specifications 2-2  
Mode settings 5-10  
Model name 2-1, D-1, D-2  
Motor start mode 5-8  
G
Motor start mode setting 5-8  
Mounting drives 5-11  
Mounting frame structure 4-6  
Mounting orientation 4-6  
Mounting procedure 5-11  
Mounting requirements 4-1  
G list 3-12  
G1 3-8  
Gaps 3-8  
General description 1-1  
General notes 5-1  
General notes 5-1  
N
H
Noise filter 4-13  
Notes on mounting 4-6  
Hardware function test 6-2  
Head configuration 1-8  
Heads 1-8  
High speed data transfer 1-2  
High speed positioning 1-4  
Humidity 2-4  
O
Online self-diagnostics 6-3  
Outer view 1-5, 1-6, 1-7  
Output signal 4-19  
I
Output signal for external LED 4-19  
Indicating revision number 6-7  
Initial self-diagnostics 6-2  
Input signal 4-19, 4-20  
Installation 5-1, 5-2  
P
PAD 1 3-9  
PAD 2 3-9  
Installation requirements 4-1  
Inteface connector 4-15  
Interface test 6-5  
PAD 3 3-9  
PLO sync 3-8  
PR4ML 1-8  
Internal test space 3-4  
Packaging 5-2  
Partial response class 4 maximum likelihood 1-9  
Parts that can be replaced in the field 6-6  
Physical sector allocation 3-6  
Positioning error rate 2-5  
Power cable 4-27  
L
LBA 3-8  
LUN 1-11  
Large capacity 1-4  
Leak magnetic flux 4-9  
Power on/off sequence 4-11, 4-12  
Power requirements 2-4, 4-11  
IN-2  
C141-E035-03EN  
Power supply 4-15  
Power supply connector 4-15, 4-16, 4-23  
Prefetches 1-3  
Preparating after Installation for use 5-13  
Preventive maintenance 6-5  
Product number 2-1  
Programmable data block length 1-4  
Programmable multi-segment data buffer 1-3  
Setting SCSI terminal 5-8  
Setting SCSI terminal power supply 5-8  
Setting check list 5-11  
Setting parameters 5-20  
Setting terminals 5-5, 5-6, B-1, B-2  
Setting terminals position 5-5  
Shock 2-4  
Spare sector 3-5  
Specifications 2-1  
R
Specifying CDB 5-19  
Spindle motor 1-8  
Standard features 1-2  
Start/Stop of spindle motor 1-4  
Storage 5-2  
Structure 1-5  
Surface temperature check point 4-8  
Surface temperature measurement points 4-8  
Sync byte 3-8  
System configuration 1-10  
System space 3-4  
Random read test 6-5  
Read circuit 1-9  
Read-ahead cache feature 1-3  
Read/write error recovery parameter 5-21  
Recirculation filter 1-9  
Recommended components for connection  
21, 4-24  
Reconnection parameter 5-22  
Release function 1-3  
Reliability 2-5  
4-  
Reporting result of self-diagnostics 6-3  
Reserve function 1-3  
T
Revision label 6-7  
TERMON 4-20  
Revision numbers 6-7  
TRNG 3-8  
Temperature 2-4  
Terminating resistor setting 5-9  
Terminator on 4-20  
Test programs 6-4  
Track capacity 3-3  
Track format 3-6  
Track skew 3-7  
S
SA space 3-4  
SB 3-8  
SCA2 type SCSI model 4-22  
SCSI ID 1-11  
SCSI ID external input 4-18  
SCSI bus configuration 1-10  
SCSI bus connection 5-3  
SCSI bus test 6-5  
Trainig 3-8  
U
SCSI cable 4-25  
Unpackaging  
SCSI cable connector 4-25  
SCSI cable requirements 4-26  
SCSI cable termination 4-27  
SCSI connector 4-15  
Unrecoverable error rate 2-5  
User space 3-4  
V
SCSI connector 4-23  
Verify error recovery parameters 5-21  
Vibration 2-4  
SCSI function specifications 2-7  
SCSI interface functions E-1  
SCSI interface functions specifications E-2  
SCSI/CCS standard 1-2  
SG 4-27  
W
Wide range 1-5  
SG terminal 4-16  
Write circuit 1-9  
Sector format 3-8  
Sector slip treatment 3-12  
Seek test 6-2  
Write protect 5-9  
Write protect setting 5-9  
Write/read test 6-2  
Self-diagnostics 6-1  
Sequential read test 6-5  
Sequential starting of spindle motor 4-13  
Service clearance area 4-9  
Service life 2-6, 6-5  
Z
Zone layout 3-3  
Service system and repairs 6-6  
C141-E035-03EN  
IN-3  
Comments concerning this manual can be directed to one of the following addresses:  
FUJITSU LIMITED  
Business Planning  
FUJITSU ICL ESPAÑA S.A.  
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HONG  
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852-2827-4724  
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TEL:  
FAX:  
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TEL:  
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FUJITSU COMPUTERS (SINGAPORE) PTE. LTD  
20 Science Park Road #03-01,  
TELETECH PARK SINGAPORE SCIENCE PARK II,  
Singapore 117674  
TEL:  
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TEL:  
FAX:  
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65-771-5499  
TEL:  
FAX:  
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49-89-32378100  
FUJITSU TAIWAN LTD.  
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TEL:  
FAX:  
886-2-545-7700  
886-2-717-4644  
TEL:  
FAX:  
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TEL:  
FAX:  
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39-2-26294-201  
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TEL:  
FAX:  
33-1-41-80-38-80  
33-1-41-80-38-66  
10  
FUJITSU LIMITED  
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