. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cheetah 10K.6 FC Disc Drive
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST3146807FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST373307FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST336607FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Manual, Volume 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cheetah 10K.6 FC Disc Drive
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST3146807FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST373307FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ST336607FC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product Manual, Volume 1
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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© 2002 Seagate Technology LLC All rights reserved
June 2002
Publication number: 100195490, Rev. B
Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology LLC.
Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either registered trademarks or trademarks of
Seagate Technology LLC. Other product names are registered trademarks or trademarks of their owners.
Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publica-
tion may be reproduced in any form without written permission of Seagate Technology LLC.
Printed in the United States of America
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Revision status summary sheet
Revision
Date
Writer/Engineer
Sheets Affected
A
B
06/18/2002
06/26/2002
K. Schweiss/B. Hohn
K. Schweiss/B. Hohn
1/1, v-viii, 1-72
19
Notice.
Product Manual 100195490 is Volume 1 of a two volume document with the Fibre Channel Interface
information in the Fibre Channel Interface Manual, part number 77767496.
If you need the Fibre Channel Interface information, order the Fibre Channel Interface Manual, part
number 77767496.
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Cheetah 10K.6 FC Product Manual, Rev. B
v
Contents
Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Electromagnetic compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Reference documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Factory-installed accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Factory-installed options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Access time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Start/stop time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Cache operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Prefetch operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Reliability specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Error rates . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Environmental interference. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Write errors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Mean time between failure (MTBF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Service life . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Hot plugging the drive. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
S.M.A.R.T. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Physical/electrical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Power sequencing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
6.3.3
Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
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vi
Cheetah 10K.6 FC Product Manual, Rev. B
Defect and error management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Drive internal defects/errors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
J6 connector requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Drive orientation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Cooling . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Drive mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Fibre Channel port login accept. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39
Fibre Channel fabric accept login . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
Fibre Channel Arbitrated Loop options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
Dual port support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42
SCSI commands supported . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43
Connector requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54
Fault LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Active LED Out . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56
Motor start controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
SEL_6 through SEL_0 ID lines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .57
Signal characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .60
Differential PECL output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .61
10.0
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Cheetah 10K.6 FC Product Manual, Rev. B
vii
List of Figures
Figure 25.
Cheetah 10K.6 FC family disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Cheetah 10K.6 FC disc drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Typical ST3146807FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Typical ST373307FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Typical ST336607FC drive +12V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Typical ST3146807FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Typical ST373307FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Typical ST336607FC drive +5V current profile . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Environmental limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Location of the HDA Temperature check point . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Recommended mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
LED indicator connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
Physical interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
Port bypass circuit physical interconnect . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
FC-AL SCA device connector dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
FC-AL transmitters and receivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
Transmit eye diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
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Cheetah 10K.6 FC Product Manual, Rev. B
1
1.0
Scope
This manual describes Seagate Technology® LLC, Cheetah® 10K.6 FC (Fibre Channel) disc drives.
Cheetah 10K.6 FC drives support the Fibre Channel Arbitrated Loop and SCSI Fibre Channel Protocol specifi-
cations to the extent described in this manual. The Fibre Channel Interface Manual (part number 77767496)
describes the general Fibre Channel Arbitrated Loop characteristics of this and other Seagate Fibre Channel
drives.
Figure 1.
Cheetah 10K.6 FC family disc drive
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Cheetah 10K.6 FC Product Manual, Rev. B
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Cheetah 10K.6 FC Product Manual, Rev. B
3
2.0
Applicable standards and reference documentation
The drive has been developed as a system peripheral to the highest standards of design and construction. The
drive depends upon its host equipment to provide adequate power and environment in order to achieve opti-
mum performance and compliance with applicable industry and governmental regulations. Special attention
must be given in the areas of safety, power distribution, shielding, audible noise control, and temperature regu-
lation. In particular, the drive must be securely mounted in order to guarantee the specified performance char-
acteristics. Mounting by bottom holes must meet the requirements of Section 8.5.
2.1
Standards
The Cheetah 10K.6 FC family complies with Seagate standards as noted in the appropriate sections of this
manual and the Seagate Fibre Channel Interface Manual, part number 77767496.
The Cheetah 10K.6 FC disc drive is a UL recognized component per UL1950, CSA certified to CAN/CSA
C22.2 No. 950-95, and VDE certified to VDE 0805 and EN60950.
2.1.1
Electromagnetic compatibility
The drive, as delivered, is designed for system integration and installation into a suitable enclosure prior to use.
As such the drive is supplied as a subassembly and is not subject to Subpart B of Part 15 of the FCC Rules
and Regulations nor the Radio Interference Regulations of the Canadian Department of Communications.
The design characteristics of the drive serve to minimize radiation when installed in an enclosure that provides
reasonable shielding. As such, the drive is capable of meeting the Class B limits of the FCC Rules and Regula-
tions of the Canadian Department of Communications when properly packaged. However, it is the user’s
responsibility to assure that the drive meets the appropriate EMI requirements in their system. Shielded I/O
cables may be required if the enclosure does not provide adequate shielding. If the I/O cables are external to
the enclosure, shielded cables should be used, with the shields grounded to the enclosure and to the host con-
troller.
2.1.1.1
Electromagnetic susceptibility
As a component assembly, the drive is not required to meet any susceptibility performance requirements. It is
the responsibility of those integrating the drive within their systems to perform those tests required and design
their system to ensure that equipment operating in the same system as the drive or external to the system
does not adversely affect the performance of the drive. See Section 5.1.1 and Table 1, DC power requirements.
2.1.2
Electromagnetic compliance
Seagate uses an independent laboratory to confirm compliance with the directives/standards for CE Marking
and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected sys-
tem represents the most popular characteristics for test platforms. The system configurations include:
• Typical current use microprocessor
• 3.5-inch floppy disc drive
• Keyboard
• Monitor/display
• Printer
• External modem
• Mouse
Although the test system with this Seagate model complies with the directives/standards, we cannot guarantee
that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance
and provide the appropriate marking for their product.
Electromagnetic compliance for the European Union
If this model has the CE Marking it complies with the European Union requirements of the Electromagnetic
Compatibility Directive 89/336/EEC of 03 May 1989 as amended by Directive 92/31/EEC of 28 April 1992 and
Directive 93/68/EEC of 22 July 1993.
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Cheetah 10K.6 FC Product Manual, Rev. B
Australian C-Tick
If this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548 1995
and meets the Electromagnetic Compatibility (EMC) Framework requirements of Australia’s Spectrum Man-
agement Agency (SMA).
Korean MIC
If this model has the Korean Ministry of Information and Communication (MIC) logo, it complies with paragraph
1 of Article 11 of the Electromagnetic Compatibility (EMC) Control Regulation and meets the Electromagnetic
Compatibility Framework requirements of the Radio Research Laboratory (RRL) Ministry of Information and
Communication Republic of Korea.
Taiwanese BSMI
If this model has two Chinese words meaning “EMC certification” followed by an eight digit identification num-
ber, as a Marking, it complies with Chinese National Standard (CNS) 13438 and meets the Electromagnetic
Compatibility (EMC) Framework requirements of the Taiwanese Bureau of Standards, Metrology, and Inspec-
tion (BSMI).
2.2
Reference documents
Cheetah 10K.6 FC Installation Guide
Seagate part number: 100195492
Fibre Channel Interface Manual
Seagate part number: 77767496
ANSI Fibre Channel Documents
X3.230-1994
X3.297.1997
X3.303.1998
X3.272-1996
X3.269-1996
NCITS TR-19
NCITS TR-20
SFF-8045
FC Physical and Signaling Interface (FC-PH)
FC-PH-2 Fibre Channel Physical and Signaling Interface-2
FC-PH-3 Fibre Channel Physical and Signaling Interface-3
FC Arbitrated Loop (FC-AL)
Fibre Channel Protocol for SCSI (FCP)
Private Loop SCSI Direct Attach (PLDA)
Fabric Loop Attachment (FC-FLA)
Specification for 40-pin SCA-2 Connector with Parallel Selection
Specification for 40-pin SCA-2 Connector with Bidirectional Enclosure Services
Interface
SFF-8067
ANSI Small Computer System Interface (SCSI) Documents
X3.131-1994
X3.270-1996
(SCSI-2)
(SCSI-3) Architecture Model
NCITS 305-199X (SCSI-3) Enclosure Services
Specification for Acoustic Test Requirement and Procedures
Seagate part number: 30553-001
Package Test Specification
Package Test Specification
Seagate P/N 30190-001 (under 100 lb.)
Seagate P/N 30191-001 (over 100 lb.)
In case of conflict between this document and any referenced document, this document takes precedence.
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Cheetah 10K.6 FC Product Manual, Rev. B
5
3.0
General description
Cheetah 10K.6 FC drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood
(PRML) read channel electronics, embedded servo technology, and a Fibre Channel interface to provide high
performance, high capacity data storage for a variety of systems including engineering workstations, network
servers, mainframes, and supercomputers.
Cheetah 10K.6 FC drives are random access storage devices designed to support the Fibre Channel Arbi-
trated Loop (FC-AL) and SCSI Fibre Channel Protocol as described in the ANSI specifications, this document,
and the Fibre Channel Interface Manual (part number 77767496) which describes the general interface char-
acteristics of this drive. Cheetah 10K.6 FC drives are classified as intelligent peripherals and provide level 2
conformance (highest level) with the ANSI SCSI standard.
See Figure 2 for an exploded view of the drive. Never disassemble the HDA. This exploded view is for informa-
tion only. Do not attempt to service items in the sealed enclosure (heads, media, actuator, etc.) as this requires
special facilities. The drive contains no parts replaceable by the user and opening the HDA for any reason
voids your warranty.
Figure 2.
Cheetah 10K.6 FC disc drive
Cheetah 10K.6 FC drives use a dedicated landing zone at the innermost radius of the media to eliminate the
possibility of destroying or degrading data by landing in the data zone. The heads automatically go to the land-
ing zone when power is removed from the drive.
An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur-
ing shipping and handling. The shipping lock disengages and the head load process begins when power is
applied to the drive.
Cheetah 10K.6 FC drives decode track 0 location data from the servo data embedded on each surface to elim-
inate mechanical transducer adjustments and related reliability concerns.
The drives also use a high-performance actuator assembly with a low-inertia, balanced, patented, straight arm
design that provides excellent performance with minimal power dissipation.
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Cheetah 10K.6 FC Product Manual, Rev. B
3.1
Standard features
Cheetah 10K.6 FC drives have the following standard features:
• Integrated dual port FC-AL controller
• Concurrent dual port transfers
• Support for FC arbitrated loop, private and public attachment
• Differential copper FC drivers and receivers
• Downloadable firmware using the FC-AL interface
• Supports SCSI enclosure services via interface connector
• 128-deep task set (queue)
• Supports up to 32 initiators
• Drive selection ID and configuration options are set on the FC-AL backpanel or through interface com-
mands. Jumpers are not used on the drive.
• Fibre Channel worldwide name uniquely identifies the drive and each port
• User-selectable logical block size (512 to 528 bytes per logical block) in even numbers of blocks
• Selectable frame sizes from 256 to 2,112 bytes
• Industry standard 3.5-inch low profile form factor dimensions
• Programmable logical block reallocation scheme
• Flawed logical block reallocation at format time
• Programmable auto write and read reallocation
• Reed-Solomon error correction code
• Sealed head and disc assembly (HDA)
• No preventive maintenance or adjustments required
• Dedicated head landing zone
• Automatic shipping lock
• Embedded Grey Code track address and servo wedge address to eliminate seek errors
• Self-diagnostics performed at power on
• 1:1 interleave
• Zone bit recording (ZBR)
• Vertical, horizontal, or top down mounting
• Dynamic spindle brake
• Embedded servo design
• Reallocation of defects on command (Post Format)
• Fibre Channel interface transports SCSI protocol
3.2
Media description
The media used on the drive has a diameter of approximately 84 mm (approximately 3.3 inches). The alumi-
num substrate is coated with a thin film magnetic material, overcoated with a proprietary protective layer for
improved durability and environmental protection.
3.3
Performance
• Programmable multi-segmentable cache buffer
• 200 Mbytes/sec maximum instantaneous data transfers per port
• 10K RPM spindle; average latency = 2.99 msec
• Command queuing of up to 128 commands
• Background processing of queue
• Supports start and stop commands
• Adaptive seek velocity; improved seek performance
3.4
Reliability
• 1,200,000 hour MTBF
• LSI circuitry
• Balanced low mass rotary voice coil actuator
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Cheetah 10K.6 FC Product Manual, Rev. B
7
• Self-Monitoring Analysis and Reporting Technology (S.M.A.R.T.)
• Dithering
3.5
Unformatted and formatted capacities
Formatted capacity depends on the spare reallocation sectors scheme selected, the number of data tracks per
sparing zone, and the number of alternate sectors (LBAs) per sparing zone. The following table shows the
standard OEM model capacity:
Formatted
Unformatted
ST3146807FC
ST373307FC
ST336607FC
11177330h (146.8) Gbytes (190.0) Gbytes
88BB998h (73.3) Gbytes
445DCCCh (36.7) Gbytes
(95.0) Gbytes
(47.5) Gbytes
Standard OEM models are formatted to 512 bytes per block. You can order other capacities by requesting a dif-
ferent sparing scheme and logical block size.
The sector size is selectable at format time. Users having the necessary equipment may modify the data block
size before issuing a format command and obtain different formatted capacities than those listed. Cheetah
10K.6 FC drives use a zone sparing scheme. The drive is divided into frequency zones with a variable number
of spares in each zone.
Note. For 2 gigabit operation, sector sizes must be divisible by 8.
3.6
Programmable drive capacity
Using the Mode Select command, the drive can change its capacity to something less than maximum. See the
Mode Select (6) parameter list table in the Fibre Channel Interface Manual, part number 7767496. A value of
zero in the Number of Blocks field indicates that the drive will not change the capacity it is currently formatted
to have. A number other than zero and less than the maximum number of LBAs in the Number of Blocks field
changes the total drive capacity to the value in the Number of Blocks field. A value greater than the maximum
number of LBAs is rounded down to the maximum capacity.
3.7
OEM standard drives are shipped with the Cheetah 10K.6 FC Installation Guide (part number 100195492).
3.8 Factory-installed options
Factory-installed accessories
You may order the following items which are incorporated at the manufacturing facility during production or
packaged before shipping. Some of the options available are (not an exhaustive list of possible options):
• Other capacities can be ordered depending on sparing scheme and sector size requested.
• Single-unit shipping pack. The drive is normally shipped in bulk packaging to provide maximum protection
against transit damage. Units shipped individually require additional protection as provided by the single unit
shipping pack. Users planning single unit distribution should specify this option.
• The Cheetah 10K.6 FC Installation Guide, part number 100195492, is usually included with each standard
OEM drive shipped, but extra copies may be ordered.
• The Safety and Regulatory Agency Specifications, part number 75789512, is usually included with each
standard OEM drive shipped, but extra copies may be ordered.
3.9
User-installed accessories
The following accessories are available. All kits may be installed in the field.
• Evaluation kit, part number 73473641.
This kit provides an adapter card (“T-card”) to allow cable connections for two FC ports and DC power.
• Single-unit shipping pack.
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9
4.0
Performance characteristics
This section provides detailed information concerning performance-related characteristics and features of
Cheetah 10K.6 FC drives.
4.1
Internal drive characteristics
ST3146807FC...........ST373307FC..........ST336607FC
Drive capacity
Read/write data heads
Bytes per track
146.8.........................73.3 ........................36.7........... Gbytes (formatted, rounded off value)
8................................4 .............................2
368............................368 .........................368............ Kbytes (average, rounded off values)
1,835.........................1,835 ......................1,835......... Mbytes (unformatted, rounded off value)
Bytes per surface
Tracks per surface (total) 49,855.......................49,855 ....................49,855....... Tracks (user accessible)
Tracks per inch
64,000.......................64,000 ....................64,000....... TPI
Peak bits per inch
Internal data rate
Disc rotation speed
Avg rotational latency
570............................570 .........................570............ KBPI
475-841.....................475-841 ..................475-841..... Mbits/sec (variable with zone)
10,008.......................10,008 ....................10,008....... rpm (+ 0.5%)
2.99...........................2.99 ........................2.99........... msec
4.2
Seek performance characteristics
Access time
4.2.1
Including controller
Not including controller
overhead 1,2 (msec)
1 2
,
overhead
(msec)
Read
Write
Read
Write
3 4
,
Average
Typical
4.90
0.55
9.20
5.50
0.75
9.70
4.70
0.35
9.00
5.30
0.55
9.50
Single track Typical3,4
Full stroke
Typical3,4
1.
2.
3.
Execution time measured from receipt of the FCP Command to the FCP Response.
Assumes no errors and no sector has been relocated.
Typical access times are measured under nominal conditions of temperature, voltage, and hor-
izontal orientation as measured on a representative sample of drives.
Access time = controller overhead + average seek time.
4.
Access to data = controller overhead + average seek time + latency time.
4.2.2
Format command execution time (in minutes)
ST3146807FC
ST373307FC
ST336607FC
Maximum (with verify)
180
90
90
45
45
30
Maximum (without verify)
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4.2.3
General performance characteristics
Minimum sector interleave
1 to 1
Data buffer to/from disc media (one 512-byte logical block)*
Minimum
Average
Maximum
59 MBytes/sec
94 MBytes/sec
105 MBytes/sec
Fibre Channel Interface maximum instantaneous transfer rate
1 GHz
2 GHz
106 Mbytes/sec* per 212 Mbytes/sec* per
port (dual port = 212 port (dual port = 424
Mbytes/sec*)
Mbytes/sec*)
Logical block sizes
Default is 512-byte data blocks
Variable 512 to 528 bytes per sector in even number of bytes per sector. If
n (number of bytes per sector) is odd, then n-1 will be used.
Read/write consecutive sectors on a track
Yes
Flaw reallocation performance impact (for flaws reallocated at format time
using the spare sectors per sparing zone reallocation scheme.)
Negligible
0.8 msec
Overhead time for head switch in sequential mode
Overhead time for one track cylinder switch in sequential mode
Average rotational latency
1.2 msec (typical)
2.99 msec
*Assumes no errors and no relocated logical blocks. Rate measured from the start of the first logical block transfer to or
from the host.
4.3
Start/stop time
If the Motor Start option is disabled, the drive becomes ready within 20 seconds after DC power is applied. If a
recoverable error condition is detected during the start sequence, the drive executes a recovery procedure and
the time to become ready may exceed 30 seconds. Stop time is less than 30 seconds (maximum) from removal
of DC power.
If the Motor Start option is enabled, the internal controller accepts the commands listed in the Fibre Channel
Interface Manual less than 3 seconds after DC power has been applied. After the Motor Start command has
been received, the drive becomes ready for normal operations within 20 seconds (excluding the error recovery
procedure). The Motor Start command can also be used to command the drive to stop the spindle.
There is no power control switch on the drive.
4.4
Prefetch/multi-segmented cache control
The drive provides a prefetch (read look-ahead) and multi-segmented cache control algorithms that in many
cases can enhance system performance. Cache refers to the drive buffer storage space when it is used in
cache operations. To select this feature, the host sends the Mode Select command with the proper values in
the applicable bytes in page 08h. Prefetch and cache operations are independent features from the standpoint
that each is enabled and disabled independently using the Mode Select command; however, in actual opera-
tion, the prefetch feature overlaps cache operation somewhat as described in sections 4.5.1 and 4.5.2.
All default cache and prefetch mode parameter values (Mode Page 08h) for standard OEM versions of this
4.5
Cache operation
Note. Refer to the Fibre Channel Interface Manual for more detail concerning the cache bits.
Of the 8,192 kbytes physical buffer space in the drive, 6,877 kbytes can be used as a cache.
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11
The buffer can be divided into logical segments (using Mode Select Page 08h, byte 13) from which data is read
and to which data is written.
The drive keeps track of the logical block addresses of the data stored in each segment of the buffer. If the
cache is enabled (see RCD bit in the Fibre Channel Interface Manual), data requested by the host with a read
command is retrieved from the buffer, if possible, before any disc access is initiated. If cache operation is not
enabled, the buffer (still segmented with the required number of segments) is still used, but only as circular
buffer segments during disc medium read operations (disregarding Prefetch operation for the moment). That is,
the drive does not check in the buffer segments for the requested read data, but goes directly to the medium to
retrieve it. The retrieved data merely passes through some buffer segment on the way to the host. On a cache
miss, all data transfers to the host are in accordance with buffer-full ratio rules. On a cache hit, the drive ignores
the buffer-full ratio rules. See the explanation provided with the information about Mode Page 02h (disconnect/
reconnect control) in the Fibre Channel Interface Manual.
The following is a simplified description of the prefetch/cache operation:
Case A—read command is received and the first logical block is already in the cache:
1. Drive transfers to the initiator the first logical block requested plus all subsequent contiguous logical blocks
that are already in the cache. This data may be in multiple segments.
2. When a requested logical block is reached that is not in any cache segment, the drive fetches it and any
remaining requested logical block addresses from the disc and puts them in a segment of the cache. The
drive transfers the remaining requested logical blocks from the cache to the host in accordance with the
Mode Select Disconnect/Reconnect parameters, page 02h.
Case B—A Read command requests data, and the first logical block is not in any segment of the cache:
1. The drive fetches the requested logical blocks from the disc and transfers them into a segment, and then
from there to the host in accordance with the Mode Select Disconnect/Reconnect parameters, page 02h.
During a prefetch, the drive crosses a cylinder boundary to fetch data only if the Discontinuity (DISC) bit is set
to 1 in bit 4 of byte 2 of the Mode Select parameters page 08h. Default is zero for bit 4.
Each cache segment is actually a self-contained circular buffer whose length is an integer number of logical
blocks. The wrap-around capability of the individual segments greatly enhances the cache’s overall perfor-
mance, allowing a wide range of user-selectable configurations. The drive supports operation of any integer
number of segments from 1 to 32. Divide the 6,877 Kbytes in the buffer by the number of segments to get the
segment size in bytes; then divide by the sector size to get the number of sectors per segment, any partial sec-
tors remaining are not used. Default is 3 segments.
Note. The size of each segment is not reported by Mode Sense command page 08h, bytes 14 and 15. The
value 0XFFFF is always reported regardless of the actual size of the segment. Sending a size specifi-
cation using the Mode Select command (bytes 14 and 15) does not set up a new segment size. If the
STRICT bit in Mode page 00h (byte 2, bit 1) is set to one, the drive responds as it does for any attempt
to change an unchangeable parameter.
4.5.1
Caching write data
Write caching is a write operation by the drive that makes use of a drive buffer storage area where the data to
be written to the medium is stored while the drive performs the Write command.
If read caching is enabled (RCD=0), then data written to the medium is retained in the cache to be made avail-
able for future read cache hits. The same buffer space and segmentation is used as set up for read functions.
The buffer segmentation scheme is set up or changed independently, having nothing to do with the state of
RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that
are to be written are already stored in the cache from a previous read or write command. If there are, the
respective cache segments are cleared. The new data is cached for subsequent Read commands.
If the number of write data logical blocks exceed the size of the segment being written into, when the end of the
segment is reached, the data is written into the beginning of the same cache segment, overwriting the data that
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Cheetah 10K.6 FC Product Manual, Rev. B
was written there at the beginning of the operation; however, the drive does not overwrite data that has not yet
been written to the medium.
If write caching is enabled (WCE=1), then the drive may return Good status on a write command after the data
has been transferred into the cache, but before the data has been written to the medium. If an error occurs
while writing the data to the medium, and Good status has already been returned, a deferred error will be gen-
erated.
The Synchronize Cache command may be used to force the drive to write all cached write data to the medium.
Upon completion of a Synchronize Cache command, all data received from previous write commands will have
been written to the medium.
4.5.2
Prefetch operation
If the Prefetch feature is enabled, data in contiguous logical blocks on the disc immediately beyond that which
was requested by a Read command are retrieved and stored in the buffer for immediate transfer from the buffer
to the host on subsequent Read commands that request those logical blocks (this is true even if cache opera-
tion is disabled). Though the prefetch operation uses the buffer as a cache, finding the requested data in the
buffer is a prefetch hit, not a cache operation hit.
To enable Prefetch, use Mode Select page 08h, byte 12, bit 5 (Disable Read Ahead - DRA bit). DRA bit = 0
enables prefetch.
Since data that is prefetched replaces data already in some buffer segments, the host can limit the amount of
prefetch data to optimize system performance. The Max Prefetch field (bytes 8 and 9) limits the amount of
prefetch. The drive does not use the Prefetch Ceiling field (bytes 10 and 11).
During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if Mode parameters
page 08h, byte 2, bit 4 is set to 1 (Discontinuity--DISC bit).
When prefetch (read look-ahead) is enabled (enabled by DRA = 0), it operates under the control of ARLA
(Adaptive Read Look-Ahead). If the host uses software interleave, ARLA enables prefetch of contiguous blocks
from the disc when it senses that a prefetch hit will likely occur, even if two consecutive read operations were
not for physically contiguous blocks of data (e.g. “software interleave”). ARLA disables prefetch when it decides
that a prefetch hit will not likely occur. If the host is not using software interleave, and if two sequential read
operations are not for contiguous blocks of data, ARLA disables prefetch, but as long as sequential read oper-
ations request contiguous blocks of data, ARLA keeps prefetch enabled.
4.5.3
Optimizing cache performance for desktop and server applications
Desktop and server applications require different drive caching operations for optimal performance. This
means it is difficult to provide a single configuration that meets both of these needs. In a desktop environment,
you want to configure the cache to respond quickly to repetitive accesses of multiple small segments of data
without taking the time to “look ahead” to the next contiguous segments of data. In a server environment, you
want to configure the cache to provide large volumes of sequential data in a non-repetitive manner. In this
case, the ability of the cache to “look ahead” to the next contiguous segments of sequential data is a good
thing.
The Performance Mode (PM) bit controls the way the drive switches the cache buffer into different modes of
segmentation. In “server mode” (PM bit = 0), the drive can dynamically change the number of cache buffer seg-
ments as needed to optimize the performance, based on the command stream from the host. In “desktop
mode” (PM bit = 1), the number of segments is maintained at the value defined in Mode Page 8, Byte 13, at all
times. For additional information about the PM bit, refer to the Unit Attention Parameters page (00h) of the
Mode Sense command (1Ah) in the Fibre Channel Interface Product Manual, part number 77767496.
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13
5.0
Reliability specifications
The following reliability specifications assume correct host and drive operational interface, including all inter-
face timings, power supply voltages, environmental requirements and drive mounting constraints
Less than 10 errors in 108 seeks
Seek error rate
Read Error Rates1
Recovered Data
Less than 10 errors in 1012 bits transferred (OEM default settings)
Less than 1 sector in 1015 bits transferred
Less than 1 sector in 1021 bits transferred
Less than 1 error in 1012 bits transferred with minimum receive eye
Less than 1 error in 1014 bits transferred with typical receive eye
Unrecovered Data
Miscorrected Data
Interface error rate
MTBF
1,200,000 hours
5 years
Service life
Preventive maintenance
None required
1. Error rate specified with automatic retries and data correction with ECC enabled and all flaws reallocated.
5.1 Error rates
The error rates stated in this manual assume the following:
• The drive is operated in accordance with this manual using DC power as defined in paragraph 6.2, "DC
• The drive has been formatted with the FC-AL Format command.
• Errors caused by media defects or host system failures are excluded from error rate computations.
• Assume random data.
5.1.0.1
Interface errors
An interface error is defined as a failure of the receiver on a port to recover the data as transmitted by the
device port connected to the receiver. The error may be detected as a running disparity error, illegal code, loss
of word sync, or CRC error. The total error rate for a loop of devices is the sum of the individual device error
rates.
5.1.1
Environmental interference
When evaluating systems operation under conditions of electromagnetic interference (EMI), the performance
of the drive within the system is considered acceptable if the drive does not generate an unrecoverable condi-
tion.
An unrecoverable error, or condition, is defined as one that:
• is not detected and corrected by the drive itself
• is not detected from the error or fault status provided through the drive or FC-AL interface
• is not recovered by normal drive or system recovery procedures without operator intervention
5.1.2
Write errors
Write errors can occur as a result of media defects, environmental interference, or equipment malfunction.
Therefore, write errors are not predictable as a function of the number of bits passed.
If an unrecoverable write error occurs because of an equipment malfunction in the drive, the error is classified
as a failure affecting MTBF. Unrecoverable write errors are those that cannot be corrected within two attempts
at writing the record with a read verify after each attempt (excluding media defects).
5.1.3
Seek errors
A seek error is defined as a failure of the drive to position the heads to the addressed track. After detecting an
initial seek error, the drive automatically performs an error recovery process. If the error recovery process fails,
a seek positioning error (15h) is reported with a Medium error (3h) or Hardware error (4h) reported in the
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Cheetah 10K.6 FC Product Manual, Rev. B
Sense Key. This is an unrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF
calculations. Refer to the Fibre Channel Interface Manual, part number 77767496, for Request Sense informa-
tion.
5.2
Reliability and service
You can enhance the reliability of Cheetah 10K.6 FC disc drives by ensuring that the drive receives adequate
cooling. Section 6.0 provides recommended air-flow information, temperature measurements, and other infor-
mation, which you can use to enhance the service life of the drive.
5.2.1
Mean time between failure (MTBF)
The production disc drive achieves an MTBF of 1,200,000 hours when operated in an environment that
ensures the case temperatures specified in Section 6.3.1 are not exceeded. Short-term excursions up to the
specification limits of the operating environment will not affect MTBF performance. Operating the drive at case
temperatures above these values will adversely affect the drive’s ability to meet specifications. See Section Fig-
The MTBF target is specified as device power-on hours (POH) for all drives in service per failure.
The following expression defines MTBF:
MTBF per measurement period = Estimated power-on operating hours in the period
Number of drive failures in the period
Estimated power-on operating hours means power-on hours per disc drive times the total number of disc drives
in service. Each disc drive must have accumulated at least nine months of operation. Data is calculated on a
rolling average base for a minimum period of six months.
MTBF is based on the following assumptions:
• 8,760 power-on hours per year
• 250 average on/off cycles per year
• Operating at nominal voltages
• System provides adequate cooling to ensure the case temperatures specified in Section 6.3.1 are not
exceeded.
Drive failure means any stoppage or failure to meet defined specifications caused by drive malfunction.
A S.M.A.R.T. predictive failure indicates that the drive is deteriorating to an imminent failure and is considered
an MTBF hit.
5.2.2
Preventive maintenance
No routine scheduled preventive maintenance is required.
5.2.3
Service life
The drive has a useful service life of five 5 years. Depot repair or replacement of major parts is permitted dur-
ing the lifetime.
5.2.4
Service philosophy
Special equipment is required to repair the drive HDA. To achieve the above service life, repairs must be per-
formed only at a properly equipped and staffed Seagate service and repair facility. Troubleshooting and repair
of PCBs in the field is not recommended because of the extensive diagnostic equipment required for effective
servicing. There are not spare parts available for this drive. The drive warranty is voided if the HDA is opened.
5.2.5
Service tools
No special tools are required for site installation or recommended for site maintenance. Refer to Section 5.2.4.
The depot repair philosophy of the drive precludes the necessity for special tools. Field repair of the drive is not
practical because users cannot purchase individual parts for the drive.
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5.2.6 Hot plugging the drive
15
Inserting and removing the drive on the FC-AL will interrupt loop operation. The interruption occurs when the
receiver of the next device in the loop must synchronize to a different input signal. FC error detection mecha-
nisms, character sync, running disparity, word sync, and CRC are able to detect any error. Recovery is initiated
based on the type of error.
The disc drive defaults to the FC-AL Monitoring state, Pass-through state, when it is powered-on by switching
the power or hot plugged. The control line to an optional port bypass circuit (external to the drive), defaults to
the Enable Bypass state. If the bypass circuit is present, the next device in the loop will continue to receive the
output of the previous device to the newly inserted device. If the bypass circuit is not present, loop operation is
temporarily disrupted until the next device starts receiving the output from the newly inserted device and
regains synchronization to the new input.
The Pass-through state is disabled while the drive performs self test of the FC interface. The control line for an
external port bypass circuit remains in the Enable Bypass state while self test is running. If the bypass circuit is
present, loop operation may continue. If the bypass circuit is not present, loop operation will be halted while the
self test of the FC interface runs.
When the self test completes successfully, the control line to the bypass circuit is disabled and the drive enters
the FC-AL Initializing state. The receiver on the next device in the loop must synchronize to output of the newly
inserted drive.
If the self-test fails, the control line to the bypass circuit remains in the Enable Bypass state.
Note. It is the responsibility of the systems integrator to assure that no temperature, energy, voltage hazard,
or ESD potential hazard is presented during the hot connect/disconnect operation. Discharge the static
electricity from the drive carrier prior to inserting it into the system.
Caution. The drive motor must come to a complete stop prior to changing the plane of operation. This time is
required to insure data integrity.
5.2.7
S.M.A.R.T.
S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is intended
to recognize conditions that indicate imminent drive failure and is designed to provide sufficient warning of a
failure to allow you to back up the data before an actual failure occurs.
Note. The drive’s firmware monitors specific attributes for degradation over time but can’t predict instanta-
neous drive failures.
Each monitored attribute has been selected to monitor a specific set of failure conditions in the operating per-
formance of the drive and the thresholds are optimized to minimize “false” and “failed” predictions.
Controlling S.M.A.R.T.
The operating mode of S.M.A.R.T. is controlled by the DEXCPT and PERF bits on the Informational Exceptions
Control mode page (1Ch). Use the DEXCPT bit to enable or disable the S.M.A.R.T. feature. Setting the DEX-
CPT bit disables all S.M.A.R.T. functions. When enabled, S.M.A.R.T. collects on-line data as the drive performs
normal read and write operations. When the PERF bit is set, the drive is considered to be in “On-line Mode
Only” and will not perform off-line functions.
You can measure off-line attributes and force the drive to save the data by using the Rezero Unit command.
Forcing S.M.A.R.T. resets the timer so that the next scheduled interrupt is in two hours.
You can interrogate the drive through the host to determine the time remaining before the next scheduled mea-
surement and data logging process occurs. To accomplish this, issue a Log Sense command to log page 0x3E.
This allows you to control when S.M.A.R.T. interruptions occur. Forcing S.M.A.R.T. with the RTZ command
resets the timer.
Performance impact
S.M.A.R.T. attribute data is saved to the disc so that the events that caused a predictive failure can be recre-
ated. The drive measures and saves parameters once every two hours subject to an idle period on the FC-AL
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Cheetah 10K.6 FC Product Manual, Rev. B
bus. The process of measuring off-line attribute data and saving data to the disc is uninterruptable. The maxi-
mum on-line only processing delay is summarized below:
Maximum processing delay
On-line only delay
Fully-enabled delay
DEXCPT = 0, PERF = 1
DEXCPT = 0, PERF = 0
S.M.A.R.T. delay times
300 milliseconds
50 milliseconds
Reporting control
Reporting is controlled by the MRIE bits in the Informational Exceptions Control mode page (1Ch). Subject to
the reporting method, the firmware will issue to the host an 01-5Dxx sense code. The error code is preserved
through bus resets and power cycles.
Determining rate
S.M.A.R.T. monitors the rate at which errors occur and signals a predictive failure if the rate of degraded errors
increases to an unacceptable level. To determine rate, error events are logged and compared to the number of
total operations for a given attribute. The interval defines the number of operations over which to measure the
rate. The counter that keeps track of the current number of operations is referred to as the Interval Counter.
S.M.A.R.T. measures error rates. All errors for each monitored attribute are recorded. A counter keeps track of
the number of errors for the current interval. This counter is referred to as the Failure Counter.
Error rate is the number of errors per operation. The algorithm that S.M.A.R.T. uses to record rates of error is to
set thresholds for the number of errors and their interval. If the number of errors exceeds the threshold before
the interval expires, the error rate is considered to be unacceptable. If the number of errors does not exceed
the threshold before the interval expires, the error rate is considered to be acceptable. In either case, the inter-
val and failure counters are reset and the process starts over.
Predictive failures
S.M.A.R.T. signals predictive failures when the drive is performing unacceptably for a period of time. The firm-
ware keeps a running count of the number of times the error rate for each attribute is unacceptable. To accom-
plish this, a counter is incremented each time the error rate is unacceptable and decremented (not to exceed
zero) whenever the error rate is acceptable. If the counter continually increments such that it reaches the pre-
dictive threshold, a predictive failure is signaled. This counter is referred to as the Failure History Counter.
There is a separate Failure History Counter for each attribute.
5.2.8
Drive Self Test (DST)
Drive Self Test (DST) is a technology designed to recognize drive fault conditions that qualify the drive as a
failed unit. DST validates the functionality of the drive at a system level.
There are two test coverage options implemented in DST:
1. Extended test
2. Short text
The most thorough option is the extended test that performs various tests on the drive and scans every logical
block address (LBA) of the drive. The short test is time-restricted and limited in length—it does not scan the
entire media surface, but does some fundamental tests and scans portions of the media.
If DST encounters an error during either of these tests, it reports a fault condition. If the drive fails the test,
remove it from service and return it to Seagate for service.
5.2.8.1
DST Failure Definition
The drive will present a “diagnostic failed” condition through the self-tests results value of the diagnostic log
page if a functional failure is encountered during DST. The channel and servo parameters are not modified to
test the drive more stringently, and the number of retries are not reduced. All retries and recovery processes
are enabled during the test. If data is recoverable, no failure condition will be reported regardless of the number
of retries required to recover the data.
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17
The following conditions are considered DST failure conditions:
• Seek error after retries are exhausted
• Track-follow error after retries are exhausted
• Read error after retries are exhausted
• Write error after retries are exhausted
Recovered errors will not be reported as diagnostic failures.
5.2.8.2
Implementation
This section provides all of the information necessary to implement the DST function on this drive.
5.2.8.2.1
State of the drive prior to testing
The drive must be in a ready state before issuing the Send Diagnostic command. There are multiple reasons
why a drive may not be ready, some of which are valid conditions, and not errors. For example, a drive may be
in process of doing a format, or another DST. It is the responsibility of the host application to determine the “not
ready” cause.
While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a
failed drive.
A Drive Not Ready condition is reported by the drive under the following conditions:
• Motor will not spin
• Motor will not lock to speed
• Servo will not lock on track
• Drive cannot read configuration tables from the disc
In these conditions, the drive responds to a Test Unit Ready command with an 02/04/00 or 02/04/03 code.
5.2.8.2.2
Invoking DST
To invoke DST, submit the Send Diagnostic command with the appropriate Function Code (001b for the short
test or 010b for the extended test) in bytes 1, bits 5, 6, and 7. Refer to the Fibre Channel Interface Product
Manual, part number 77767496, for additional information about invoking DST.
5.2.8.2.3
Short and extended tests
DST has two testing options:
1. short
2. extended
These testing options are described in the following two subsections.
Each test consists of three segments: an electrical test segment, a servo test segment, and a read/verify scan
segment.
Short test (Function Code: 001b)
The purpose of the short test is to provide a time-limited test that tests as much of the drive as possible within
120 seconds. The short test does not scan the entire media surface, but does some fundamental tests and
scans portions of the media. A complete read/verify scan is not performed and only factual failures will report a
fault condition. This option provides a quick confidence test of the drive.
Extended test (Function Code: 010b)
The objective of the extended test option is to empirically test critical drive components. For example, the seek
tests and on-track operations test the positioning mechanism. The read operation tests the read head element
and the media surface. The write element is tested through read/write/read operations. The integrity of the
media is checked through a read/verify scan of the media. Motor functionality is tested by default as a part of
these tests.
The anticipated length of the Extended test is reported through the Control Mode page.
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Cheetah 10K.6 FC Product Manual, Rev. B
5.2.8.2.4
Log page entries
When the drive begins DST, it creates a new entry in the Self-test Results Log page. The new entry is created
by inserting a new self-test parameter block at the beginning of the self-test results log parameter section of the
log page. Existing data will be moved to make room for the new parameter block. The drive reports 20 parame-
ter blocks in the log page. If there are more than 20 parameter blocks, the least recent parameter block will be
deleted. The new parameter block will be initialized as follows:
1. The Function Code field is set to the same value as sent in the DST command
2. The Self-Test Results Value field is set to Fh
3. The drive will store the log page to non-volatile memory
After a self-test is complete or has been aborted, the drive updates the Self-Test Results Value field in its Self-
Test Results Log page in non-volatile memory. The host may use Log Sense to read the results from up to the
last 20 self-tests performed by the drive. The self-test results value is a 4-bit field that reports the results of the
test. If the field is zero, the drive passed with no errors detected by the DST. If the field is not zero, the test
failed for the reason reported in the field.
The drive will report the failure condition and LBA (if applicable) in the Self-test Results Log parameter. The
Sense key, ASC, ASCQ, and FRU are used to report the failure condition.
5.2.8.2.5
Abort
There are several ways to abort a diagnostic. You can use a SCSI Bus Reset or a Bus Device Reset message
to abort the diagnostic.
You can abort a DST executing in background mode by using the abort code in the DST Function Code field.
This will cause a 01 (self-test aborted by the application client) code to appear in the self-test results values
log. All other abort mechanisms will be reported as a 02 (self-test routine was interrupted by a reset condition).
5.2.9
Product warranty
Beginning on the date of shipment to the customer and continuing for a period of five years, Seagate warrants
that each product (including components and subassemblies) that fails to function properly under normal use
due to defect in materials or workmanship or due to nonconformance to the applicable specifications will be
repaired or replaced, at Seagate’s option and at no charge to the customer, if returned by customer at cus-
tomer’s expense to Seagate’s designated facility in accordance with Seagate’s warranty procedure. Seagate
will pay for transporting the repair or replacement item to the customer. For more detailed warranty information,
refer to the standard terms and conditions of purchase for Seagate products. Refer to Section 10 for contact
information.
Shipping
When transporting or shipping a drive, use only a Seagate-approved container. Keep your original box.
Seagate approved containers are easily identified by the Seagate Approved Package label. Shipping a drive in
a non-approved container voids the drive warranty.
Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran-
sit. Contact your authorized Seagate distributor to purchase additional boxes. Seagate recommends shipping
by an air-ride carrier experienced in handling computer equipment.
Product repair and return information
Seagate customer service centers are the only facilities authorized to service Seagate drives. Seagate does
not sanction any third-party repair facilities. Any unauthorized repair or tampering with the factory seal voids
the warranty.
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Cheetah 10K.6 FC Product Manual, Rev. B
19
6.0
Physical/electrical specifications
This section provides information relating to the physical and electrical characteristics of the drive.
6.1
AC power requirements
None.
6.2
DC power requirements
The voltage and current requirements for a single drive are shown below. Values indicated apply at the drive
connector.
Table 1:
DC power requirements
ST3146807FC
ST373307FC
ST336607FC
Notes
(Amps)
(Amps)
(Amps)
(Amps)
(Amps)
(Amps)
Voltage
5%
5% [2]
0.51
5%
5% [2]
0.37
5%
5% [2]
0.27
Regulation
[5]
Avg idle current DC
Maximum starting current
(peak DC) DC
(peak AC) AC
X
[1] [7]
0.92
0.91
0.93
1.09
1.38
0.70
1.48
2.61
0.02
1.02
1.36
0.70
1.26
2.30
0.02
0.99
1.30
0.71
1.04
1.94
0.02
Peak operating current:
Typical DC
X
[1] [6]
0.97
0.99
1.50
0.94
0.95
2.40
0.97
0.98
1.54
0.88
0.89
2.30
0.99
1.00
1.46
0.75
0.78
2.06
Maximum DC
Maximum (peak) DC
3σ
[1] Measured with average reading DC ammeter. Instantaneous +12V current peaks will exceed these val-
ues. Power supply at nominal voltage. Number of drives tested = 6, 22 Degrees C ambient.
[2] For +12 V, a –10% tolerance is allowed during initial spindle start but must return to 5% before reaching
10,000 RPM. The 5% must be maintained after the drive signifies that its power-up sequence has been
completed and that the drive is able to accept selection by the host initiator.
[4] This condition occurs when the Motor Start option is enabled and the drive has not yet received a Start
Motor command.
[5] See paragraph 6.2.1, "Conducted noise immunity." Specified voltage tolerance includes ripple, noise, and
transient response.
[6] Operating condition is defined as random 8 block reads at (ST3146807 at 234, ST373307 at 239 and
ST336607 at 239) I/Os per second. Current and power specified at nominal voltages. Decreasing +5 volt
supply by 5% increases 5 volt current by 3.6%. Decreasing +12 volt supply by 5% increases 12 volt cur-
rent by 3%.
[7] During idle, the drive heads are relocated every 60 seconds to a random location within the band from
track zero to one-fourth of maximum track.
[8] Values shown are for operation at 2 Gb; for operation at 1 Gb, reduce the +5V by 0.10 amps. The +12V
current values are not affected by loop speed.
General DC power requirement notes.
1. Minimum current loading for each supply voltage is not less than 0.8% of the maximum operating current
shown.
2. The +5V and +12V supplies should employ separate ground returns.
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Cheetah 10K.6 FC Product Manual, Rev. B
3. Where power is provided to multiple drives from a common supply, careful consideration for individual drive
power requirements should be noted. Where multiple units are powered on simultaneously, the peak start-
ing current must be available to each device.
4. Parameters, other than spindle start, are measured after a 10-minute warm up.
5. No terminator power.
6.2.1
Conducted noise immunity
Noise is specified as a periodic and random distribution of frequencies covering a band from DC to 10 MHz.
Maximum allowed noise values given below are peak-to-peak measurements and apply at the drive power
connector.
+5V
+12V
0 to 100 kHz
150mV
100mV
150mV
100mV
100 kHz to 10 MHz
6.2.2
Power sequencing
The drive does not require power sequencing. The drive protects against inadvertent writing during power-up
and down.
6.2.3
Current profiles
Figures 3, 4 and 5 identify the drive +12V current profiles for each model ST3146807FC, ST3733307FC and
ST336607FC, respectively. The current during the various times is as shown:
T0 Power is applied to the drive.
T1 Controller self-tests are performed.
T2 Spindle begins to accelerate under current limiting after performing internal diagnostics.
T3 Spindle is up to speed and the Head-Arm restraint is unlocked.
Figure 3.
Typical ST3146807FC drive +12V current profile
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22
Cheetah 10K.6 FC Product Manual, Rev. B
Figures 6, 7 and 8 identify the drive +5V current profiles for each model ST3146807FC, ST3733307FC and
ST336607FC, respectively. The current during the various times is as shown:
T0 Power is applied to the drive.
T1 Controller self-tests are performed.
T2 Spindle begins to accelerate under current limiting after performing internal diagnostics.
T3 Spindle is up to speed and the Head-Arm restraint is unlocked.
Figure 6.
Typical ST3146807FC drive +5V current profile
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Cheetah 10K.6 FC Product Manual, Rev. B
6.3
Power dissipation
ST3146807FC
Typical power dissipation under idle conditions is 10.72 watts (37.3 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
9). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
ST3146807FC DC CURRENT/POWER vs THROUGHPUT (2 Gb)
Random 8 Block Reads
1.800
1.600
1.400
1.200
1.000
0.800
0.600
0.400
18 . 0 0
16 . 0 0
14 . 0 0
12 . 0 0
10 . 0 0
8.00
5Volt A
12 V o lt A
Watts
6.00
4.00
0.0
50.0
100.0
150.0
200.0
250.0
I/Os per Second
Figure 9.
ST3146807FC DC current and power vs. input/output operations per second
Note. Values shown are for operation at 2Gb, for operation at 1Gb, reduce the +5V by.10 amps. The +12V
current values are not affected by loop speed.
ST373307FC
Typical power dissipation under idle conditions is 8.99 watts (30.7 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
9). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
ST373307 FC CURRENT/POWER vs THROUGHPUT (2 gig)
Random 8 Block Reads
1.8 0 0
1.6 0 0
1.4 0 0
1.2 0 0
1.0 0 0
0.800
0.600
0.400
18 . 0 0
16 . 0 0
14 . 0 0
12 . 0 0
10 . 0 0
8.00
5Volt A
12 V o l t A
Watts
6.00
4.00
0.0
50.0
100.0
150.0
200.0
250.0
300.0
I/Os per Second
Figure 10.
ST373307FC DC current and power vs. input/output operations per second
Note. Values shown are for operation at 2Gb, for operation at 1Gb, reduce the +5V by.10Amps. The +12V
current values are not affected by loop speed.
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25
ST336607FC
Typical power dissipation under idle conditions is 7.89 watts (26.9 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure
9). Locate the typical I/O rate for a drive in your system on the horizontal axis and read the corresponding +5
volt current, +12 volt current, and total watts on the vertical axis. To calculate BTUs per hour, multiply watts by
3.4123.
ST336607 FC CURRENT/POWER vs THROUGHPUT (2 gig)
Random 8 Block Reads
18 .0 0
5Volt A
1.7 0 0
12 V o lt A
16 .0 0
Watts
1.5 0 0
14 .0 0
1.3 0 0
12 .0 0
1. 10 0
10 .0 0
0.900
8.00
0.700
6.00
4.00
0.500
0.300
0.0
50.0
100.0
150.0
200.0
250.0
I/Os per Second
Figure 11.
ST336607FC DC current and power vs. input/output operations per second
Note. Values shown are for operation at 2 Gb, for operation at 1 Gb, reduce the +5V by.10Amps. The +12V
current values are not affected by loop speed.
Figure 12.
Environmental limits
Temperature and humidity values experienced by the drive must be such that condensation does not occur on
any drive part. Altitude and atmospheric pressure specifications are referenced to a standard day at 58.7°F
(14.8°C). Maximum wet bulb temperature is 82°F (28°C).
6.3.1
Temperature
a. Operating
With cooling designed to maintain the case temperature, the drive meets all specifications over a 41°F to
131°F (5°C to 55°C) drive ambient temperature range with a maximum temperature gradient of 36°F (20°C)
per hour. The enclosure for the drive should be designed such that these temperatures are not exceeded.
Air flow may be needed to achieve these temperature values (see Section 8.4). Operation at HDA case tem-
peratures above these values may adversely affect the drives ability to meet specifications.
The MTBF specification for the drive is based on operating in an environment that ensures that the HDA
case temperatures are not exceeded. Occasional excursions to drive ambient temperatures of 131°F
(55°C) or 41°F (5°C) may occur without impact to specified MTBF. Air flow may be needed to achieve these
temperatures. Continual or sustained operation at HDA case temperatures above these values may
degrade MTBF. The maximum allowable continuous or sustained HDA case temperature for the rated
MTBF is 122°F (50°C).
To confirm that the required cooling for the HDA is provided, place the drive in its final mechanical configu-
ration, perform random write/read operations. After the temperatures stabilize, measure the case tempera-
ture.
The maximum allowable HDA case temperature is 60°C. Operation of the drive at the maximum case tem-
perature is intended for short time periods only. Continuous operation at the elevated temperatures will
reduce product reliability.
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26
Cheetah 10K.6 FC Product Manual, Rev. B
b. Non-operating
–40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This
specification assumes that the drive is packaged in the shipping container designed by Seagate for use with
drive.
HDA Temp.
Check Point
.5"
Figure 13. Location of the HDA Temperature check point
6.3.2
Relative humidity
The values below assume that no condensation on the drive occurs.
a. Operating
5% to 95% non-condensing relative humidity with a maximum gradient of 10% per hour.
b. Non-operating
5% to 95% non-condensing relative humidity.
6.3.3
Effective altitude (sea level)
a. Operating
–1,000 to +10,000 feet (–305 to +3,048 meters)
b. Non-operating
–1,000 to +40,000 feet (–305 to +12,210 meters)
6.3.4
Shock and vibration
Shock and vibration limits specified in this document are measured directly on the drive chassis. If the drive is
installed in an enclosure to which the stated shock and/or vibration criteria is applied, resonances may occur
internally to the enclosure resulting in drive movement in excess of the stated limits. If this situation is apparent,
it may be necessary to modify the enclosure to minimize drive movement.
The limits of shock and vibration defined within this document are specified with the drive mounted by any of
the four methods shown in Figure 14, and in accordance with the restrictions of Section 8.5. Orientation of the
side nearest the LED may be up or down.
6.3.4.1
Shock
a. Operating—normal
The drive, as installed for normal operation, shall operate error free while subjected to intermittent shock not
exceeding 15 Gs at a maximum duration of 11 msec (half sinewave). The drive, as installed for normal oper-
ation, shall operate error free while subjected to intermittent shock not exceeding 15 Gs at a maximum
duration of 2 msec (half sinewave). Shock may be applied in the X, Y, or Z axis.
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Cheetah 10K.6 FC Product Manual, Rev. B
27
b. Operating—abnormal
Equipment, as installed for normal operation, does not incur physical damage while subjected to intermit-
tent shock not exceeding 40 Gs at a maximum duration of 11 msec (half sinewave). Shock occurring at
abnormal levels may promote degraded operational performance during the abnormal shock period. Speci-
fied operational performance will continue when normal operating shock levels resume. Shock may be
applied in the X, Y, or Z axis. Shock is not to be repeated more than two times per second.
c. Non-operating
The limits of non-operating shock shall apply to all conditions of handling and transportation. This includes
both isolated drives and integrated drives.
The drive subjected to nonrepetitive shock not exceeding 75 Gs at a maximum duration of 11 msec (half
sinewave) shall not exhibit device damage or performance degradation. Shock may be applied in the X, Y,
or Z axis.
The drive subjected to nonrepetitive shock not exceeding 225 Gs at a maximum duration of 2 msec (half
sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y,
or Z axis.
The drive subjected to nonrepetitive shock not exceeding 120 Gs at a maximum duration of 0.5 msec (half
sinewave) does not exhibit device damage or performance degradation. Shock may be applied in the X, Y,
or Z axis.
d. Packaged
Disc drives shipped as loose load (not palletized) general freight will be packaged to withstand drops from
heights as defined in the table below. For additional details refer to Seagate specifications 30190-001
(under 100 lbs/45 kg) or 30191-001 (over 100 lbs/45 Kg).
Package size
Packaged/product weight
Drop height
<600 cu in (<9,800 cu cm)
Any
60 in (1524 mm)
48 in (1219 mm)
42 in (1067 mm)
36 in (914 mm)
600-1800 cu in (9,800-19,700 cu cm)
>1800 cu in (>19,700 cu cm)
>600 cu in (>9,800 cu cm)
0-20 lb (0 to 9.1 kg)
0-20 lb (0 to 9.1 kg)
20-40 lb (9.1 to 18.1 kg)
Drives packaged in single or multipacks with a gross weight of 20 pounds (8.95 kg) or less by Seagate for
general freight shipment shall withstand a drop test from 48 inches (1,070 mm) against a concrete floor or
equivalent.
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29
6.3.4.2
Vibration
a. Operating - normal
The drive as installed for normal operation, shall comply with the complete specified performance while
subjected to continuous vibration not exceeding
5-500 Hz @ 1.0 G (zero to peak)
Vibration may be applied in the X, Y, or Z axis.
Operating normal translational random flat profile
10 - 400 Hz
0.4 GRMS
b. Operating - abnormal
Equipment as installed for normal operation shall not incur physical damage while subjected to periodic
vibration not exceeding:
15 minutes of duration at major resonant frequency
5-500 Hz @ 1.5 G (X, Y, or Z axis)
Vibration occurring at these levels may degrade operational performance during the abnormal vibration
period. Specified operational performance will continue when normal operating vibration levels are
resumed. This assumes system recovery routines are available.
Operating abnormal translational random flat profile
10 - 400 Hz
1.2 GRMS
c. Non-operating
The limits of non-operating vibration shall apply to all conditions of handling and transportation. This
includes both isolated drives and integrated drives.
The drive shall not incur physical damage or degraded performance as a result of continuous vibration not
exceeding
5-22 Hz @ 0.040 inches (1.02 mm) displacement (zero to peak)
22-400 Hz @ 4.00 G (zero to peak)
Vibration may be applied in the X, Y, or Z axis.
Non-operating translational random flat profile
10 - 400 Hz
1.2 GRMS
6.3.5
Air cleanliness
The drive is designed to operate in a typical office environment with minimal environmental control.
6.3.6
Acoustics
Sound power during idle mode shall be 3.6 bels typical when measured to ISO 7779 specification.
There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea-
sured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the
masking noise on any drive.
6.3.7
Electromagnetic susceptibility
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Cheetah 10K.6 FC Product Manual, Rev. B
6.4
Mechanical specifications
The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions
of the front panel are shown in figure below. Refer to Figure 15 for detailed mounting configuration dimensions.
Height:
Width:
Depth:
Weight:
1.000 in
4.000 in
5.75 in
25.4 mm
101.6 mm
146.05 mm
0.734 kilograms
1.62 pounds
K
//
T
-Z-
S
[1]
-Z-
H
L
J
B
Notes:
R
Mounting holes are 6-32 UNC 2B, three
on each side and four on the bottom.
Max screw penetration into side of drive
is 0.15 in. (3.81 mm). Max screw
tightening torque is 6.0 in-lb (3.32 nm)
with minimum full thread engagement of
0.12 in. (3.05 mm).
[1]
N
-Z- -X-
A
-Z-
M
U -X-
Dimension Table
Inches
1.028 max
5.787 max
Millimeters
P
A
B
C
D
E
F
H
J
K
L
M
P
R
S
T
26.10 max
147.00 max
101.60 .25
95.25 .25
3.18 .25
44.45 .25
28.50 .50
101.60 .25
6.35 .25
41.60 .25
4.60 .50
41.28 .50
41.10 .08
7.00 1.02
0.38 max
[1]
4.000 .010
3.750 .010
0.125 .010
1.750 .010
1.122 .020
4.000 .010
0.250 .010
1.638 .010
0.181 .020
1.625 .020
1.618 .003
0.276 .040
.015 max
F
U
.015 max
0.38 max
E
D
C
-X-
Figure 15. Mounting configuration dimensions
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Cheetah 10K.6 FC Product Manual, Rev. B
31
7.0
Defect and error management
The drive, as delivered, complies with this product manual. The read error rates and specified storage capaci-
ties are not dependent upon use of defect management routines by the host (initiator).
Defect and error management in the SCSI protocol involves the drive internal defect/error management and
FC-AL system error considerations (errors in communications between the initiator and the drive). Tools for use
in designing a defect/error management plan are briefly outlined in this section. References to other sections
are provided when necessary.
7.1
Drive internal defects/errors
During the initial drive format operation at the factory, media defects are identified, tagged as being unusable,
and their locations recorded on the drive primary defects list (referred to as the “P’ list and also as the ETF
defect list). At factory format time, these known defects are also reallocated, that is, reassigned to a new place
on the medium and the location listed in the defects reallocation table. The “P” list is not altered after factory
formatting. Locations of defects found and reallocated during error recovery procedures after drive shipment
are listed in the “G” list (defects growth list). The “P” and “G” lists may be referenced by the initiator using the
Read Defect Data command.
Details of the SCSI commands supported by the drive are described in the Fibre Channel Interface Manual.
Also, more information on the drive Error Recovery philosophy is presented in the Fibre Channel Interface
Manual.
7.2
Drive error recovery procedures
When an error occurs during drive operation, the drive, if programmed to do so, performs error recovery proce-
dures to attempt to recover the data. The error recovery procedures used depend on the options previously set
in the Error Recovery Parameters mode page. Error recovery and defect management may involve using sev-
eral SCSI commands described in the Fibre Channel Interface Manual. The drive implements selectable error
recovery time limits required in video applications.
The error recovery scheme supported by the drive provides a way to control the total error recovery time for the
entire command in addition to controlling the recovery level for a single LBA. The total amount of time spent in
error recovery for a command can be limited using the Recovery Time Limit bytes in the Error Recovery mode
page. The total amount of time spent in error recovery for a single LBA can be limited using the Read Retry
Count or Write Retry Count bytes in the Error Recovery mode page.
The drive firmware error recovery algorithms consists of 12 levels for read recoveries and five levels for write.
Each level may consist of multiple steps, where a step is defined as a recovery function involving a single re-
read or re-write attempt. The maximum level used by the drive in LBA recovery is determined by the read and
write retry counts.
Table 2 equates the read and write retry count with the maximum possible recovery time for read and write
recovery of individual LBAs. The times given do not include time taken to perform reallocations. Reallocations
are performed when the ARRE bit (for reads) or AWRE bit (for writes) is one, the RC bit is zero, and the recov-
ery time limit for the command has not yet been met. Time needed to perform reallocation is not counted
against the recovery time limit.
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Cheetah 10K.6 FC Product Manual, Rev. B
When the RC bit is one, reallocations are disabled even if the ARRE or AWRE bits are one. The drive will still
perform data recovery actions within the limits defined by the Read Retry Count, Write Retry Count, and
Recovery Time Limit parameters. However, the drive does not report any unrecovered errors.
Table 2:
Read and write retry count maximum recovery times
Read retry
Maximum recovery time per
LBA (cumulative, msec)
Write retry
Maximum recovery time per
LBA (cumulative, msec)
count1
count1
0
77.7
0
35.9
1
89.7
1
53.8
2
305.0
328.9
370.8
418.6
532.3
544.3
568.2
622.0
682.5
1,377.5
2
59.8
3
3
113.7
227.4
269.2
4
4
5
5 (default)
6
7
8
9
10
11 (default)
[1] Setting these retry counts to a value below the default setting could result in degradation of the unrecov-
ered error rate. For example, suppose the read/write recovery page has the RC bit = 0, the read retry
count set to 4, and the recovery time limit set to 450. A 4-block read command can take up to 370.8 msec
recovery time for each block and a maximum of 450 msec recovery for all four blocks. If either of these lim-
its is reached and a block has not yet been recovered, the command will end with Check Condition status
and an unrecoverable read error will be reported.
7.3
FC-AL system errors
Information on the reporting of operational errors or faults across the interface is given in the Fibre Channel
Interface Manual. The FCP Response returns information to the host about numerous kinds of errors or faults.
The Receive Diagnostic Results reports the results of diagnostic operations performed by the drive.
Status returned by the drive to the initiator is described in the Fibre Channel Interface Manual. Status reporting
plays a role in systems error management and its use in that respect is described in sections where the various
commands are discussed.
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Cheetah 10K.6 FC Product Manual, Rev. B
33
8.0
Installation
Cheetah 10K.6 FC disc drive installation is a plug-and-play process. There are no jumpers, switches, or termi-
nators on the drive. Simply plug the drive into the host’s 40-pin Fibre Channel backpanel connector (FC-
Use the FC-AL interface to select drive ID and all option configurations for devices on the loop.
If multiple devices are on the same FC-AL and physical addresses are used, set the device selection IDs (SEL
IDs) on the backpanel so that no two devices have the same selection ID. This is called the hard assigned arbi-
trated loop physical address (AL_PA). There are 125 AL_PAs available (see Table 23). If you set the AL_PA on
the backpanel to any value other than 0, the device plugged into the backpanel’s SCA connector inherits this
AL_PA. In the event you don’t successfully assign unique hard addresses (and therefore have duplicate selec-
tion IDs assigned to two or more devices), the FC-AL generates a message indicating this condition. If you set
the AL_PA on the backpanel to a value of 0, the system issues a unique soft-assigned physical address auto-
matically.
Loop initialization is the process used to verify or obtain an address. The loop initialization process is per-
formed when power is applied to the drive, when a device is added or removed from the Fibre Channel loop, or
when a device times out attempting to win arbitration.
• Set all option selections in the connector prior to applying power to the drive. If you change options after
applying power to the drive, recycle the drive power to activate the new settings.
• It is not necessary to low-level format this drive. The drive is shipped from the factory low-level formatted in
512-byte logical blocks. You need to reformat the drive only if you want to select a different logical block size.
8.1
Drive ID/option selection
All drive options are made through the interface connector (J1). Table provides the pin descriptions for the 40-
pin Fibre Channel single connector (J1).
8.2
LED connections
A connector, J6, is provided on the printed circuit board assembly (PCBA) to provide port bypass, drive active,
and drive fault LED connections (see Figure 17). See Sections 9.5.7, 9.5.8, and 9.5.9 for descriptions of LED
functions.
J6
Figure 16.
Physical interface
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34
Cheetah 10K.6 FC Product Manual, Rev. B
Drive
Front
Pin 1
J6
Reserved
Port A Bypass LED [1]
Port B Bypass LED [1]
Fault LED [1]
Reserved
Active LED [2]
Reserved
+5V
Active LED [1]
Ground [3]
[1] The drive has a 1.2K ohm resistor in series with this LED driver. Tie the minus side of an
external high-efficiency LED (i.e., 2ma) to this pin. Connect the plus side of the LED to
+5V.
[2] An external current-limiting resistor is required when connecting an LED to this pin. The
minus side of the resistor/LED combination is connected to this pin. Connect the plus side
to +5V.
[3] Jumper storage location (across pins 2 and 4).
Figure 17.
8.2.1
LED indicator connector
J6 connector requirements
Recommended mating connector part number: Berg receptacle, 6-position, Berg part number 690-006.
8.3 Drive orientation
The drive may be mounted in any orientation. All drive performance characterizations, however, have been
done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, which are the two pre-
ferred mounting orientations.
8.4
Cooling
Cabinet cooling must be designed by the customer so that the ambient temperature immediately surrounding
The rack, cabinet, or drawer environment for the drive must provide heat removal from the electronics and
head and disc assembly (HDA). You should confirm that adequate heat removal is provided using the tempera-
ture measurement guidelines described in Section 6.3.1.
Forced air flow may be required to keep temperatures at or below the temperatures specified in Section 6.3.1,
in which case the drive should be oriented, or air flow directed, so that the least amount of air flow resistance is
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Cheetah 10K.6 FC Product Manual, Rev. B
35
created while providing air flow to the electronics and HDA. Also, the shortest possible path between the air
inlet and exit should be chosen to minimize the travel length of air heated by the drive and other heat sources
within the rack, cabinet, or drawer environment.
If forced air is determined to be necessary, possible air-flow patterns are shown in Figure 18. The air-flow pat-
terns are created by one or more fans, either forcing or drawing air as shown in the illustrations. Conduction,
convection, or other forced air-flow patterns are acceptable as long as the temperature measurement guide-
Above unit
Under unit
Note. Air flows in the direction shown (front to back)
or in reverse direction (back to front)
Above unit
Note. Air flows in the direction shown or
Under unit
in reverse direction (side to side)
Figure 18.
8.5
Air flow
Drive mounting
Mount the drive using the bottom or side mounting holes. If you mount the drive using the bottom holes, ensure
that you do not physically distort the drive by attempting to mount it on a stiff, non-flat surface.
The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm). The following equation and paragraph define
the allowable mounting surface stiffness:
K x X = F < 15lb = 67N
where K is the mounting surface stiffness (units in lb/in or N/mm) and X is the out-of-plane surface distortion
(units in inches or millimeters). The out-of-plane distortion (X) is determined by defining a plane with three of
the four mounting points fixed and evaluating the out-of-plane deflection of the fourth mounting point when a
known force (F) is applied to the fourth point.
Note. Before mounting the drive in any kind of 3.5-inch to 5.25-inch adapter frame, verify with Seagate Tech-
nology that the drive can meet the shock and vibration specifications given herein while mounted in
such an adapter frame. Adapter frames that are available may not have a mechanical structure capa-
ble of mounting the drive so that it can meet the shock and vibration specifications listed in this manual.
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36
Cheetah 10K.6 FC Product Manual, Rev. B
8.6
Grounding
Signal ground (PCBA) and HDA ground are connected together in the drive and cannot be separated by the
user. The equipment in which the drive is mounted is connected directly to the HDA and PCBA with no electri-
cally isolating shock mounts. If it is desired for the system chassis to not be connected to the HDA/PCBA
ground, the systems integrator or user must provide a nonconductive (electrically isolating) method of mount-
ing the drive in the host equipment.
Increased radiated emissions may result if you do not provide the maximum surface area ground connection
between system ground and drive ground. This is the system designer’s and integrator’s responsibility.
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Cheetah 10K.6 FC Product Manual, Rev. B
37
9.0
Interface requirements
This section partially describes the interface requirements as implemented on Cheetah 10K.6 FC drives. Addi-
tional information is provided in the Fibre Channel Interface Manual (part number 77767496).
9.1
FC-AL features
This section lists the Fibre Channel-specific features supported by Cheetah 10K.6 FC drives.
9.1.1
Fibre Channel link service frames
Table 3:
Link services supported
Type of frame
Link service
Basic link service frames
Abort Sequence (ABTS)
Basic link service reply frames
Basic_Accept (BA_ACC)
Basic_Reject (BA_RJT)
Extended link service frames
N_Port Login (PLOGI)
Fabric Login (FLOGI)
Logout (LOGO)
Process Login (PRLI)
Process Logout (PRLO)
Read Link Status (RLS)
Fabric Address Notification (FAN)
Port Discovery (PDISC)
Address Discovery (ADISC)
Third-party Process Logout (TRPLO)
Extended link service reply frames
Fibre Channel Services
Accept (ACC)
Link Service Reject (LS_RJT)
Register FC-4 Types (RFT_ID)
9.1.2
Fibre Channel task management functions
Table 4 lists the Fibre Channel SCSI Fibre Channel Protocol (FC SCSI FCP) task management functions sup-
ported.
Table 4:
Fibre Channel SCSI FCP task management functions
Supported
Task name
Terminate task
Clear ACA
No
Yes
Yes
Yes
Yes
Target reset
Clear task set
Abort task set
9.1.3
Fibre Channel task management responses
Table 5:
FC SCSI FCP response codes
Function name
Response code
Function complete
Function not supported
Function reject
00
04
05
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38
Cheetah 10K.6 FC Product Manual, Rev. B
9.1.4
Fibre Channel port login
Table 6:
Bytes
N_Port login (PLOGI) payload
0-15
03
00
00
00
XX XX BB BB CF XX FS FS XX XX XX XX Common
16-31
32-35
36-47
48-51
52-63
64-67
68-79
80-83
84-95
96-99
100-111
112-115
XX XX XX XX PN PN PN PN PN PN PN PN NN NN NN NN
NN NN NN NN
XX XX XX XX XX XX XX XX XX XX XX XX Class 1
XX XX XX XX
XX XX XX XX XX XX XX XX XX XX XX XX Class 2
XX XX XX XX
SO SO IC
IC
XX XX FS FS XX CS XX XX Class 3
OS OS XX XX
XX XX XX XX
XX XX XX XX
XX XX XX XX XX XX XX XX XX XX XX XX Reserved
XX XX XX XX XX XX XX XX XX XX XX XX Vendor
Version
X
Indicates a four-bit (hex) field is not checked.
x
Indicates a single bit is not checked.
BB
CF
BB-Credit. This field is not checked. The FC-AL drive uses BB-Credit of zero (0).
Common features. This binary field selects the common features requested by the initiator login.
MSB
Continuously increasing offset
Random relative offset
Valid version level
Must = 1
Not checked. Port Login Accept will return a 0—not supported.
x
N_Port/F_Port
Must = 0, N_Port
Must = 1
Alternate credit model
Other bits reserved
xxx XX
FS
PN
Receive buffer field size. The FS field in the common and Class 3 parameters is checked for the range 128 < FS < 2,112 and a
multiple of four bytes. For multiple frame sequences, all frames but the last frame of the sequence must be this size. Only the
receive buffer field size in the Class 3 parameters is used.
Port name (initiator’s)—saved with the login parameters. If a change of the port name/AL_PA address association is detected dur-
ing a Port DISCovery, and implicit logout occurs and the initiator returns a LS_RJT.
NN
SO
Node name. The node name is not checked or saved by the drive.
Service options Class 3 only.
MSB
Class valid
Must = 1
Intermix
x
Stacked connection req.
Sequential delivery
Other bits reserved
xx
x
xxx XX
IC
Initiator control
MSB XID reassign
xx
Proc Assc
Other bits
10 or 11 causes the login to be rejected. Other values are accepted.
XXX
CS
OS
Concurrent sequences
Must be a value greater than 0.
Must be a value greater than 0.
Open sequences per exchange
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Cheetah 10K.6 FC Product Manual, Rev. B
39
9.1.5
Fibre Channel port login accept
Table 7:
Bytes
N_Port Login Accept (ACC) payload
0-15
02
00
37
00
00
UI
00
01
UI
00
F4
UI
20
20
20
00
00
20
88
37
00
UI
FS FS 00
FF
00
00
00
01
20
Common
16-31
32-35
36-47
48-51
52-63
64-67
68-79
80-83
84-95
96-99
100-111
PP 00
UI
00
00
UI
00
00
20
00
00
00
00
80
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
FF
00
00
00
00
00
00
00
00
00
00
00
00
Class 1
Class 2
Class 3
Reserved
00
00
00
00
00
00
01
00
00
00
00
00
00
00
00
00
00
00
00
FS FS 00
00
00
00
00
00
00
Vendor -
Version
112-115 00
FS
UI
Receive buffer field size. The drive returns and uses the receive buffer size from the N_Port Login Class 3 receive
buffer.
Unique identifier. This 24-bit field is uniquely assigned to the drive. This same UI appears in the Port Name and
Node Name fields.
PP
Port identifier field.
01
02
P_LOGI received on Port A.
P_LOGI received on Port B.
9.1.6
Fibre Channel Process Login
Table 8:
Bytes
Process Login (PLRI) payload
0-15
20
00
10
00
00
00
14
22
08
00
20
00
XX XX XX XX XX XX XX XX
16-19
XX
Indicates fields that are not used.
Fibre Channel Process Login Accept
9.1.7
Table 9:
Bytes
Process Login Accept (ACC) payload
0-15
02
00
10
00
00
00
14
12
08
00
21
00
00
00
00
00
00
00
00
00
16-31
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40
Cheetah 10K.6 FC Product Manual, Rev. B
9.1.8
Fibre Channel fabric login
Table 10:
Bytes
Fabric Login (FLOGI) payload
0-15
04
00
37
00
00
UI
00
02
UI
00
F4
UI
20
20
20
00
00
20
08
37
00
UI
08
UI
40
UI
00
02
00
00
00
00
00
20
Common
16-31
32-35
36-47
48-51
52-63
64-67
68-79
80-83
84-95
96-99
100-111
PP 00
00
00
80
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
08
00
00
00
00
40
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Class 1
Class 2
Class 3
Reserved
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
Vendor -
Version
112-115 00
UI
Unique identifier. This 24-bit field is uniquely assigned to the drive. This same UI appears in the Port Name and Node Name
fields.
PP
Port identifier field.
01
02
FLOGI originated on Port A.
FLOGI originated on Port B.
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Cheetah 10K.6 FC Product Manual, Rev. B
41
9.1.9
Fibre Channel fabric accept login
Table 11:
Bytes
Fabric Login Accept (ACC) payload
0-15
02
E_
00
00
00
XX XX BB BB CF XX FS FS R_ A_
T0
V_
Common
16-31
32-35
36-47
48-51
52-63
64-67
68-79
80-83
84-95
96-99
100-111
D_ T0
V_
PN PN PN PN PN PN PN PN NN NN NN NN
NN NN NN NN
XX XX XX XX
XX XX XX XX
OS OS XX XX
XX XX XX XX
XX XX XX XX XX XX XX XX XX XX XX XX Class 1
XX XX XX XX XX XX XX XX XX XX XX XX Class 2
SO SO xx
xx
XX XX FS FS XX xx
XX XX Class 3
XX XX XX XX XX XX XX XX XX XX XX XX Reserved
XX XX XX XX XX XX XX XX XX XX XX XX Vendor -
Version
112-115 XX XX XX XX
X
Indicates a four-bit (hex) field is not checked.
x
Indicates a single bit is not checked.
BB
CF
BB-Credit. This field is not checked. The FC-AL drive uses BB-Credit of zero (0).
Common features. This binary field selects the common features requested by the fabric login.
MSB
Continuously increasing offset
Random relative offset
Valid version level
x
x
x
N_Port/F_Port
Must = 1, F_Port
Must = 1
Alternate credit model
Other bits reserved
xxx XX
FS
PN
Receive buffer field size. The FS field in the common and Class 3 parameters is checked for the range 128 < FS < 2,112 and a
multiple of four bytes. The receive buffer field size in the Class 3 parameters is used. The drive uses the lower FS of Fabric Login
Accept or N_Port Login when sending frames to an initiator.
Port Name. The fabric port name is saved with the login parameters. If a change of the port name is detected during a FAN, an
implicit logout occurs and a LS_RJT is returned to the fabric.
NN
SO
Node Name. The drive does not check or save the node name.
Service Options—Class 3 only.
MSB
Class valid
Must = 1
x
Intermix
Stacked connection req.
Sequential delivery
Other bits reserved
xx
Must = 1
xxx XX
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42
Cheetah 10K.6 FC Product Manual, Rev. B
9.1.10
Fibre Channel Arbitrated Loop options
Table 12:
Option
FC-AL options supported
Supported
OPEN Half Duplex
OPEN Full Duplex
Accepted from another device.
Sent to open another device.
Accepted from another device.
Private Loop
Yes
Yes
No
Public Loop
Old Port State
Loop Position
Loop Position Report
Yes
Yes
9.2
Dual port support
Cheetah 10K.6 FC drives have two independent FC-AL ports. These ports may be connected on independent
loops or on the same loop. Port A and Port B may be connected in any order or combination.
• If both ports are connected on independent loops and hard addressing is used, the drive interface address is
selected through the interface connector, both ports will seek the same loop address. If no conflict, both
ports will have the same loop address.
• If both ports are connected in the same loop and hard addressing is used, at least one port will attempt tak-
ing a soft address to prevent an address conflict.
Note. When a Cheetah 10K.6 FC drive is connected in loops with previous Seagate FC drive products:
Barracuda 4LP FC (ST32171FC, ST34371FC, and ST34571FC)
Barracuda 9FC (ST19171FC)
Cheetah 4LP FC (ST34501FC)
Cheetah 9FC (ST19101FC)
the connection of Port A and B for these products must follow the requirements in their product manu-
als.
Subject to buffer availability, the Cheetah 10K.6 FC drives support:
• Concurrent port transfers—The drive supports receiving transfers on both ports at the same time when the
ports are on independent loops.
• Full duplex—The drive supports sending FCP_Data, FCP_RSP, FCP_XFR_RDY and ELS transfers while
receiving frames on both ports.
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Cheetah 10K.6 FC Product Manual, Rev. B
43
9.3
SCSI commands supported
Table 13:
Supported commands
Command code
Supported [4] Command name
00h
01h
03h
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
N
Y
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Test unit ready
Rezero unit
Request sense
Extended sense
Field pointer bytes
Actual retry count bytes
04h
07h
08h
0Ah
0Bh
12h
Reassign blocks
Read
Write
Seek
Inquiry
Vital product data page (00h)
Unit serial number page (80h)
Implemented operating def. page (81h)
IDevice identification page (83h)
Firmware numbers page (C0h)
Date code page (C1h)
Jumper settings page (C2h)
Device behavior page (C3h)
Mode select (same pages as Mode Sense command shown below) [3]
Reserve
15h
16h
3rd party reserved
Extent reservation
17h
18h
1Ah
Release
Copy
Mode sense
Unit attention page (00h)
Error recovery page (01h)
Disconnect/reconnect control (page 02h)
Format page (03h)
Rigid disc drive geometry page (04h)
Verify error recovery page (07h)
Caching parameters page (08h)
Fibre Channel interface control page (19h)
Control mode page (0Ah)
Power control page (1Ah)
Information exceptions control page (1Ch)
Start unit/stop unit
1Bh
1Ch
Receive diagnostic results
Supported diagnostics pages
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44
Cheetah 10K.6 FC Product Manual, Rev. B
Table 13:
Supported commands (continued)
Command code
Supported [4] Command name
Y
Y
Y
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
N
Y
Y
Y
Y
N
Y
Y
Y
N
N
N
N
N
N
Y
N
Y
N
N
Y
Y
Y
N
Y
N
Y
Y
Y
Y
Y
Translate page
Enclosure services page
Send diagnostics page
Supported diagnostics pages
Translate page
Read capacity
1Dh
25h
28h
Read extended
Disable page out
Force unit access
Relative address
Write extended
Disable page out
Force unit access
Relative address
Seek extended
Write and verify
Disable page out
Byte check
2Ah
2Bh
2Eh
Relative address
Verify
2Fh
Disable page out
Byte check
Relative address
Search data high
Search data equal
Search data low
Set limits
30h
31h
32h
33h
34h
35h
36h
37h
39h
3Ah
3Bh
Prefetch
Synchronize cache
Lock-unlock-cache
Read defect data
Compare
Copy and verify
Write buffer
Write combined header and data mode (0)
Write data mode (2)
Download microcode mode (4)
Download microcode and save modes (5)
Download microcode with offsets mode (6)
Download microcode with offsets and save mode (7)
3Ch
Read buffer
Read combined header and data mode (0)
Read data mode (2)
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Cheetah 10K.6 FC Product Manual, Rev. B
Table 13: Supported commands (continued)
45
Command code
Supported [4] Command name
Read descriptor mode (3)
Y
Y
Y
N
Y
N
N
N
Y
Y
Y
Y
Y
N
Y
Y
Y
N
Y
Y
Y
N
N
N
N
N
Y
Y
Y
N
Y
N
Y
N
A
A
N
N
N
N
N
N
N
3Eh
3Fh
40h
41h
Read long
Write long
Change definition
Write same
PBdata
LBdata
42-4Bh
4Ch
Not used
Log Select
4Dh
Log Sense
Supported Log page (00h)
Write Error Counter page (02h)
Read Error Counter page (03h)
Read Reverse Error Counter page (04h)
Verify Error Counter page (05h)
Non-medium Error Counter page (06h)
Temperature page (0Dh)
Application Client page (0Fh)
Self Test Results page (10h)
Cache Statistics Counter page (37h)
Factory Log page (3Eh)
Not used
4E-4Fh
50h
XD write
51h
XP write
52h
XD read
53-54h
55h
Not used
Mode Select (10) [3]
Reserved (10)
56h
3rd party reserve
Extent reservation
Released (10)
57h
58-59h
5Ah
Not used
Mode Sense (10) [3]
Not used
5B-5Dh
5E
Persistent reserve in
Persistent reserve out
Not used
5F
60-7Fh
80h
XD write extended
Rebuild
81h
82h
Regenerate
83-8Fh
C0-DFh
EO-FFh
Not used
Not used
Not used
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46
Cheetah 10K.6 FC Product Manual, Rev. B
[1] Cheetah 10K.6 FC drives can format to any multiple of four bytes per logical block in the range 512 to 704
bytes.
[2] Warning. Power loss during flash programming can result in firmware corruption. This usually makes the
drive inoperable.
[3] Reference Mode Sense command 1Ah for mode pages supported.
[4] Y = Yes. Command is supported.
N = No. Command is not supported.
A = Support is available on special request.
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Cheetah 10K.6 FC Product Manual, Rev. B
9.3.1 Inquiry data
47
Table 14 lists the Inquiry command data that the drive should return to the initiator per the format given in the
Fibre Channel Interface Manual.
Table 14:
Bytes
Cheetah 10K.6 FC inquiry data
Data (hex)
0-15
00
[53
R#
00
00
00
00
30*
72
00
54
R#
00
00
00
43
30*
69
**
12
31
R#
00
00
00
70
20
68
8B
34
S#
00
00
00
79
53
74
00
36
S#
00
00
00
72
65
73
PP
38
S#
00
00
00
69
61
20
0A
30
S#
00
00
00
67
67
72
53
37
S#
00
00
00
68
61
65
45
46
S#
00
00
00
74
74
73
41
43]
S#
00
00
00
20
65
65
47
20
S#
00
00
00
28
20
72
41
20
00
00
00
00
63
41
76
54
20
00
00
00
00
29
6C
65
45
20
00
00
00
00
20
6C
64
20
20
00
00
00
00
32*
20
20
Vendor ID
Product ID
16-31
32-47
48-63
64-79
80-95
96-111
112-127
128-143
33
R#
00
00
00
6F
32*
67
*Copyright
notice
*
Copyright year (changes with actual year).
**
02 = SCSI-2 implemented with some SCSI-3 features (default).
03 = The device complies to ANSI X3.301:199x
PP 50 = Inquiry data for an Inquiry command received on Port A.
70 = Inquiry data for an Inquiry command received on Port B.
R# Four ASCII digits representing the last four digits of the product firmware release number.
S# Eight ASCII digits representing the eight digits of the product serial number.
[ ]
Bytes 16 through 25 reflect drive model.
9.3.2
Mode Sense data
The Mode Sense command provides a way for the drive to report its operating parameters to the initiator. The
drive maintains four sets of mode parameters:
1. Default values
Default values are hard-coded in the drive firmware stored in flash E-PROM (nonvolatile memory) on the
drive’s PCB. These default values can be changed only by downloading a complete set of new firmware
into the flash E-PROM. An initiator can request and receive from the drive a list of default values and use
those in a Mode Select command to set up new current and saved values, where the values are change-
able.
2. Saved values
Saved values are stored on the drive’s media using a Mode Select command. Only parameter values that
are allowed to be changed can be changed by this method. Parameters in the saved values list that are not
changeable by the Mode Select command get their values from default values storage.
When power is applied to the drive, it takes saved values from the media and stores them as current values
in volatile memory. It is not possible to change the current values (or the saved values) with a Mode Select
command before the drive achieves operating speed and is “ready.” An attempt to do so results in a “Check
Condition” status.
On drives requiring unique saved values, the required unique saved values are stored into the saved val-
ues storage location on the media prior to shipping the drive. Some drives may have unique firmware with
unique default values also.
On standard OEM drives, the saved values are taken from the default values list and stored into the saved
values storage location on the media prior to shipping.
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Cheetah 10K.6 FC Product Manual, Rev. B
3. Current values
Current values are volatile values being used by the drive to control its operation. A Mode Select command
can be used to change the values identified as changeable values. Originally, current values are installed
from saved or default values after a power on reset, hard reset, Target Reset, or LIP Reset.
4. Changeable values
Changeable values form a bit mask, stored in nonvolatile memory, that dictates which of the current values
and saved values can be changed by a Mode Select command. A one (1) indicates the value can be
changed. A zero (0) indicates the value is not changeable. For example, in Table 15, refer to Mode page
81, in the row entitled “CHG.” These are hex numbers representing the changeable values for Mode page
81. Note in columns 5 and 6 (bytes 04 and 05), there is 00h which indicates that in bytes 04 and 05 none of
the bits are changeable. Note also that bytes 06, 07, 09, 10, and 11 are not changeable, because those
fields are all zeros. In byte 02, hex value FF equates to the binary pattern 11111111. If there is a zero in
any bit position in the field, it means that bit is not changeable. Since all of the bits in byte 02 are ones, all
of these bits are changeable.
The changeable values list can only be changed by downloading new firmware into the flash E-PROM.
Note. Because there are often several different versions of drive control firmware in the total population of
drives in the field, the Mode Sense values given in the following tables may not exactly match those of
some drives.
The following tables list the values of the data bytes returned by the drive in response to the Mode Sense com-
mand pages for SCSI implementation (see the Fibre Channel Interface Manual).
Definitions:
DEF = Default value. Standard OEM drives are shipped configured this way.
CHG = Changeable bits; indicates if default value is changeable.
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49
Table 15:
Mode Sense data default and changeable values for ST3146807FC drives
ST3146807FC
Bytes
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Mode
00 ab 00 10 00 00 00 08 11 17 73 30 00 00 02 00
Sense
Header
<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->
81 0a c0 0b ff 00 00 00 05 00 ff ff
DEF
CHG
81 0a ff ff 00 00 00 00 ff 00 ff ff
DEF
82 0e 80 80 00 00 00 00 00 00 01 b4 00 00 00 00
82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00
CHG
DEF
83 16 46 a0 00 00 00 20 00 00 02 d0 02 00 00 01 00 66 00 66 40 00 00 00
83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
84 16 00 c2 bf 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00
84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
87 0a 00 0b ff 00 00 00 00 00 ff ff
87 0a 0f ff 00 00 00 00 00 00 ff ff
CHG
DEF
88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00
88 12 b5 00 00 00 ff ff ff ff 00 00 a0 ff 00 00 00 00 00 00
CHG
DEF
8a 0a 02 00 00 00 00 00 00 00 0c 00
8a 0a 03 f1 08 00 00 00 00 00 00 00
CHG
DEF
99 06 00 00 00 00 00 00
99 06 00 ff 00 00 00 00
CHG
DEF
9a 0a 00 03 00 00 00 01 00 00 00 04
9a 0a 00 03 00 00 00 00 00 00 00 00
CHG
DEF
9c 0a 10 00 00 00 00 00 00 00 00 01
9c 0a 9d 0f ff ff ff ff ff ff ff ff
CHG
DEF
80 06 00 00 0f 00 00 00
80 06 b7 40 0f 00 00 00
CHG
<--- Read capacity data --->
11 17 73 2f 00 00 02 00
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Cheetah 10K.6 FC Product Manual, Rev. B
Mode Sense data default and changeable values for ST373307FC drives
Table 16:
ST373307FC
Bytes
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Mode
00 ab 00 10 00 00 00 08 08 8b b9 98 00 00 02 00
Sense
Header
<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->
81 0a c0 0b ff 00 00 00 05 00 ff ff
DEF
CHG
81 0a ff ff 00 00 00 00 ff 00 ff ff
DEF
82 0e 80 80 00 00 00 00 00 00 01 b4 00 00 00 00
82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00
CHG
DEF
83 16 2a 9c 00 00 00 14 00 00 02 d1 02 00 00 01 00 90 00 66 40 00 00 00
83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
84 16 00 c2 bf 04 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00
84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
87 0a 00 0b ff 00 00 00 00 00 ff ff
87 0a 0f ff 00 00 00 00 00 00 ff ff
CHG
DEF
88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00
88 12 b5 00 00 00 ff ff ff ff 00 00 a0 ff 00 00 00 00 00 00
CHG
DEF
8a 0a 02 00 00 00 00 00 00 00 05 00
8a 0a 03 f1 08 00 00 00 00 00 00 00
CHG
DEF
99 06 00 00 00 00 00 00
99 06 00 ff 00 00 00 00
CHG
DEF
9a 0a 00 03 00 00 00 01 00 00 00 04
9a 0a 00 03 00 00 00 00 00 00 00 00
CHG
DEF
9c 0a 10 00 00 00 00 00 00 00 00 01
9c 0a 9d 0f ff ff ff ff ff ff ff ff
CHG
DEF
80 06 00 00 0f 00 00 00
80 06 b7 40 0f 00 00 00
CHG
<--- Read capacity data --->
08 8b b9 97 00 00 02 00
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51
Table 17:
Mode Sense data default and changeable values for ST373307FC drives
ST336607FC
Bytes
00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23
Mode
00 ab 00 10 00 00 00 08 04 45 dc cc 00 00 02 00
Sense
Header
<-----------------------------Mode Page 10 Byte Header Data and Parameter Data Bytes--------------------------->
81 0a c0 0b ff 00 00 00 05 00 ff ff
DEF
CHG
81 0a ff ff 00 00 00 00 ff 00 ff ff
DEF
82 0e 80 80 00 00 00 00 00 00 01 b4 00 00 00 00
82 0e ff ff 00 00 00 00 00 00 ff ff 00 00 00 00
CHG
DEF
83 16 15 4e 00 00 00 0a 00 00 02 d1 02 00 00 01 00 66 00 66 40 00 00 00
83 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
84 16 00 c2 bf 02 00 00 00 00 00 00 00 00 00 00 00 00 00 00 27 31 00 00
84 16 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
CHG
DEF
87 0a 00 0b ff 00 00 00 00 00 ff ff
87 0a 0f ff 00 00 00 00 00 00 ff ff
CHG
DEF
88 12 14 00 ff ff 00 00 ff ff ff ff 80 20 00 00 00 00 00 00
88 12 b5 00 00 00 ff ff ff ff 00 00 a0 ff 00 00 00 00 00 00
CHG
DEF
8a 0a 02 00 00 00 00 00 00 00 03 00
8a 0a 03 f1 08 00 00 00 00 00 00 00
CHG
DEF
99 06 00 00 00 00 00 00
99 06 00 ff 00 00 00 00
CHG
DEF
9a 0a 00 03 00 00 00 01 00 00 00 04
9a 0a 00 03 00 00 00 00 00 00 00 00
CHG
DEF
9c 0a 10 00 00 00 00 00 00 00 00 01
9c 0a 9d 0f ff ff ff ff ff ff ff ff
CHG
DEF
80 06 00 00 0f 00 00 00
80 06 b7 40 0f 00 00 00
CHG
<--- Read capacity data --->
04 45 dc cb 00 00 02 00
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Cheetah 10K.6 FC Product Manual, Rev. B
9.4
Miscellaneous operating features and conditions
Table 18 lists various features and conditions. A “Y” in the support column indicates the feature or condition is
supported. An “N” in the support column indicates the feature or condition is not supported.
Table 18:
Miscellaneous features
Feature or condition
Supported
Y
Y
N
N
Y
N
Y
Y
Y
Y
N
Y
FC-AL selective reset
Automatic contingent allegiance
Asynchronous event notification
Synchronized (locked) spindle operation
Segmented caching
Zero latency read
Queue tagging (up to 128 queue tags supported)
Deferred error handling
Parameter rounding (controlled by Round bit in Mode Select page 0)
Reporting actual retry count in Extended Sense bytes 15, 16, and 17
Adaptive caching
SMP = 1 in Mode Select command needed to save RPL and rotational offset bytes
Table 19:
Miscellaneous status
Status
Supported
Y
Y
Y
Y
Y
Y
Y
Y
N
N
Good
Check condition
Condition met/good
Busy
Intermediate/good
Intermediate/condition met/good
Reservation conflict
Task set full
ACA active
ACA active, faulted initiator
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5 FC-AL physical interface
53
Figure 19 shows the location of the J1 Fibre Channel single connection attachment (FC-SCA) and the J6 con-
nector. Figure 21 provides the dimensions of the FC-SCA. Figure 22 provides the dimensions of the J6 con-
nector.
Details of the physical, electrical, and logical characteristics are provided within this section. The operational
aspects of Seagate’s Fibre Channel drives are provided in the Fibre Channel Interface Manual.
J6
Figure 19.
9.5.1
Physical interface
Physical characteristics
This section defines physical interface connector.
9.5.1.1 Physical description
FIbre Channel drives may be connected in a loop together or with other compatible FC-AL devices. A maxi-
mum of 127 devices may have addresses; however, one of the addresses is reserved for a fabric port switch
device. This means 126 addresses are available for FC-AL devices. More FC-AL compatible devices may
physically reside on the loop, but they will not be functional because they would not be able to obtain valid
addresses.
Port bypass circuits (PBCs) allow devices to be inserted into unpopulated locations or removed from the loop
with loop operation recovery after a brief interruption. These PBCs are located external to the FC-AL device.
Port Bypass
Circuit
From Previous
Drive
To Next
Drive
Port Bypass
Circuit N–1
Port Bypass
Circuit N+1
MUX
Select
Serial
In
Serial
Out
Drive N–1
Drive N+1
Drive N
Figure 20.
Port bypass circuit physical interconnect
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5.2
Connector requirements
Recommended mating SCA part number:
Part description
Positions
Part number
787317-1
Features
AMP Vertical (SCA sequence)
40
40
40
40
With polarization
With polarization
With polarization
With polarization
Berg
71781
Methode
Molex
512-220-91-101N
717431040
The FC-AL SCA device connector is illustrated in Figure 21. The J6 connector is illustrated in Figure 22.
1.618 .003 in
(41.1 0.08 mm)
Pin 20
Pin 40
Pin 1
0.197 .003 in
(5.00 .08 mm)
2 places
Pin 21
.64 in
(16.24 mm)
1.28 in
(32.47 mm)
0.394 .004 in
(10.0 0.10 mm)
1.618 .003 in
(41.10 0.08 mm)
0.226 in
(6.50 mm)
0.039 in
min.
min.
(0.75 mm)
0.264+.007 in
–.010 in
1.492 .009 in
(37.90 0.24 mm)
0.024 in
(0.60 mm)
min.
(6.71+0.18 mm)
(–0.25 mm)
Mating end
Housing
0.079 .010 in
(2.00 .25 mm)
(initial point
of contact)
.05 in
(1.27 mm)
Contact (typ.)
.025 in (0.635 mm)
typ.
0.060 .010 in
(1.52 0.25 mm)
0.106 .010 in
(2.70 0.25 mm)
0.051 .006 in
(1.30 0.16 mm)
2 places
Figure 21.
FC-AL SCA device connector dimensions
.787
(19.99 mm)
.079 (2 mm)
J6
.079
(2 mm)
.708
(17.983 mm)
Figure 22.
J6 connector dimensions
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5.3 Electrical description
55
Fibre Channel drives use the FC-SCA connector for:
• DC power
• FC-AL interface
• Drive select (device identification)
• Option selection
• Enclosure Services interface
This 40-pin connector is designed to plug directly into a backpanel. External cables are not required.
9.5.4
Pin descriptions
This section provides a pin-out of the FC-SCA and a description of the functions provided by the pins.
Table 20:
FC-SCA pin descriptions
Signal name Signal type
Pin
Pin
Signal name
Signal type
1*
-EN bypass port A
Low Voltage
TTL output
21
12 Volts charge
2*
12 Volts
22
Ground
3*
12 Volts
23
Ground
4*
12 Volts
24*
25*
26
+Port A_in
-Port A_in
Ground
Diff. PECL input pair
Diff. PECL input pair
5*
-Parallel ESI
[1]
6*
Ground
7*
Active LED out
Reserved
Open collector out
27*
28*
29
+Port B_in
-Port B_in
Ground
8*
9*
Start_1 [2]
TTL input
TTL input
10*
11*
Start_2 [2]
30*
31*
+Port A_out
-Port A_out
Diff PECL output pair
Diff PECL output pair
-EN bypass port B
Low Voltage
TTL output
12*
13*
14*
15*
16*
17*
SEL_6
TTL input/output
TTL input/output
TTL input
32
Ground
SEL_5
33*
34*
35
+Port B_out
-Port B_out
Ground
SEL_4
SEL_3
TTL input/output
Open collector out
TTL input
Fault LED out
36
SEL_2
TTL input/output
TTL input/output
DEV_CTRL_CODE_2
37
SEL_1
18*
DEV_CTRL_CODE_1
TTL input
38
SEL_0
TTL input/output
19*
20*
5 Volts
5 Volts
39
40
5 Volts charge
*Short pins in mating backpanel connector.
[1] This pin may be connected to external logic to detect the presence of the drive. The drive connects this
pin to the common ground.
[2] Pins 9, 10, 17, 18, and 39 are option select pins and are tied high by the drive circuitry. The preferred elec-
trical connection at the backplane is either open or grounded (open for the ‘1’ setting, grounded for the ‘0’
setting). Alternatively, these pins may be driven by a 3.3V logic device, pulled up to 3.3V through a pull-up
resistor (recommended size of 10K ohm), or grounded through some other means.
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5.5
FC-AL transmitters and receivers
A typical FC-AL differential copper transmitter and receiver pair is shown in Figure 23. The receiver is required
to provide the AC coupling to eliminate ground shift noise.
68
150
68
.01
TX
Transmitter
TY
RX
Receiver
RY
Differential
Transfer Medium
150
.01
150
Figure 23.
9.5.6
FC-AL transmitters and receivers
Power
Power is supplied through the FC-SCA with support for +5 volts and +12 volts. All of the voltage pins in the
drive connector are the same length.
Four 12 volt pins provide +12 volt power to the drive. The current return for the +12 volt power supply is through
the common ground pins. The supply current and return current must be distributed as evenly as possible
among the pins. The maximum current typically occurs while the drive motor is starting.
Three 5 volt pins provide logic power to the drive. The current return for the +5 volt power supply is through the
common ground pins. Distribute supply and return current as evenly as possible among the voltage and ground
pins.
The mating connector pins use shorter contacts to achieve power surge reductions and to aid in “hot plugging”
the drives. There are longer voltage contacts in the connector to enable the drive filter capacitors to charge.
Current to the drive through the long charge pins is limited by the system in which the drive operates. Three of
the +12 volt pins are shorter to allow capacitive pre-charging through the longer +12 volt charge pin. Two of the
+5 volt pins are shorter to allow capacitive precharging through the longer +5 volt charge pin.
9.5.7
Fault LED Out
The Fault LED Out signal is driven by the drive when:
• the drive detects failure of both ports
• the drive detects an internal failure
• the drive receives the appropriate fault LED command from the host
The Fault LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper
+5 volt supply through an appropriate current-limiting resistor. The LED and the current-limiting resistor are
external to the drive.
9.5.8
Active LED Out
Table 21:
Active LED Out conditions
Normal command activity
LED status
Spun down and no activity
Slow blink (20% on and 80% off a 2 sec cycle)
Spun down and activity (command executing)
Spun up and no activity
On
On
Spun up and activity (command executing)
Spinning up or down
Off
Blinks steadily (50% on and 50% off)
Toggles on/off
Format in progress, each cylinder change
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57
The Active LED Out signal is designed to pull down the cathode of an LED. The anode is attached to the proper
+5 volt supply through an appropriate current limiting resistor. The LED and the current limiting resistor are
external to the drive.
9.5.9
Enable port bypass signals
The – Enable Bypass Port A (– EN BYP Port A) and – Enable Bypass Port B (– EN BYP Port B) signals control
the port bypass circuits (PBC) located external to the disc drive. The PBC allows a loop to remain functional in
the event of a drive failure or removal. When these signals are active, low, the PBC bypasses the drive on the
associated port. When an Enable Bypass signal is active, the corresponding Port Bypass LED signal in con-
nector J1 is driven low by the disc drive. A pull down resistor, 1K, located with the PBC should be used to
insure the bypass is enabled if the disc drive is not installed.
The Enable Bypass signal is active under failing conditions within the drive, on detection of the Loop Port
Bypass primitive sequence, or on removal of the drive. In the bypass state the drive continues to receive on the
inbound fibre. Enable Bypass may be deactivated by detection of a Loop Port Enable primitive sequence if the
drive has completed self-test and a hardware failure is not present.
Failure modes detected by the disc drive that will enable bypass include:
• Transmitter/receiver wrap test failure
• Loss of receive clock
• Loss of transmission clock
• Drive interface hardware error
9.5.10
Motor start controls
The drive’s motor is started according to the Start_1 and Start_2 signals described in Table 22. The state of
these signals can be wired into the backplane socket or driven by logic on the backplane.
Table 22:
Case
Motor start control signals
Start_2
Start_1
Motor spin function
1
2
3
Low
High
Low
Low
Low
High
Motor spins up at DC power on.
Motor spins up only when SCSI Start command is received.
Motor spins up after a delay of 12 seconds times the modulo 8 value of
the numeric SEL ID of the drive from DC power on.
4
High
High
The drive will not spin up.
9.5.11
SEL_6 through SEL_0 ID lines
The SEL_6 through SEL_0 ID lines determine drive address, and, optionally, for an Enclosure Services Inter-
face. When the Parallel ESI line is high, the enclosure backpanel must provide address information on the SEL
line. Refer to table 23 for a mapping of SEL to FC-AL physical addresses (AL_PA). You can think of the SEL
lines as the equivalent of a backpanel logic plug. The drives does not provide pull up resistors on these lines.
The backpanel is required to provide high and low inputs to the SEL_ID lines per the specifications in table 25
Note. Table 23 gives AL_PA values for each SEL value. The first entry in the table is SEL_ID 00. The last
entry is SEL_ID 7D. SEL_ID 7E is AL_PA 00 which is not valid for an NL_Port, so is not included in the
table. Also, SEL_ID 7Fh does map to a valid AL_PA; however, this value signals the drive that physical
addresses are not being assigned using the SEL lines and that a “soft” address will be determined by
FC-AL loop initialization.
When the Parallel ESI line is low, the enclosure backpanel logic switches to ESI mode if supported. There are
two modes of ESI, seven bits of enclosure status and a bidirectional mode. ESI support and the mode are
determined by the drive using a discovery process. Refer to the Fibre Channel Interface Manual for a descrip-
tion of ESI operation.
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5.11.1
Parallel Enclosure Services Interface (ESI)
The parallel ESI line is an output from the drive. This line provides the enclosure with an indication of the
present function of the SEL lines. A high level, the default state, indicates the drive requires address informa-
tion on the SEL lines. A low level indicates the drive is attempting an ESI transfer. The enclosure may not sup-
port ESI on any or all drive locations. It may only support the address function. Support of ESI is discovered by
the drive. Refer to the Fibre Channel Interface Manual for a description of ESI operations.
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Cheetah 10K.6 FC Product Manual, Rev. B
59
Table 23:
Arbitrated loop physical address (AL_PA) values
AL_PA
(hex)
SEL ID
(hex)
Setting
(dec)
AL_PA
(hex)
SEL ID
(hex)
Setting
(dec)
AL_PA
(hex)
SEL ID
(hex)
Setting
(dec)
EF
E8
E4
E2
E1
E0
DC
DA
D9
D6
D5
D4
D3
D2
D1
CE
CD
CC
CB
CA
C9
C7
C6
C5
C3
BC
BA
B9
B6
B5
B4
B3
B2
B1
AE
AD
AC
AB
AA
A9
A7
A6
A5
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
00
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
41
42
A3
9F
9E
9D
9B
98
97
90
8F
88
84
82
81
80
7C
7A
79
76
75
74
73
72
71
6E
6D
6C
6B
6A
69
67
66
65
63
5C
5A
59
56
55
54
53
52
51
4E
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
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
81
82
83
84
85
4D
4C
4B
4A
49
47
46
45
43
3c
3A
39
36
35
34
33
32
31
2E
2D
2C
2B
2A
29
27
26
25
23
1F
1E
1D
1B
18
17
10
0F
08
04
02
01
56
57
58
59
5A
5B
5C
5D
5E
5F
60
61
62
63
64
65
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
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Cheetah 10K.6 FC Product Manual, Rev. B
9.5.12
Device control codes
The drive inputs a Device Control Code on the DEV_CTRL_CODE lines at power up to determine the link rate
on the Fibre Channel ports. Both ports run at the same rate. If the backpanel does not connect to these lines,
the drive has 10K ohm pull up resistors that default the device control code to 7 (1.0625 GHz). Table 24 lists the
supported codes.
Table 24:
Device control code values
2 (pin 17) 1 (pin 18) 0 (pin 39) Definition
0
0
0
0
1
1
1
1
0
1
0
1
0
1
0
1
Reserved for Power failure warning.
Reserved for auto negotiation of link rate.
Reserved.
0
0
1
1
0
0
1
1
Reserved.
Reserved.
Reserved.
2.125 GHz operation on both ports.
1.0625 GHz operation on both ports.
9.6
Signal characteristics
This section describes the electrical signal characteristics of the drive’s input and output signals. See Table 20
on page 55 for signal type and signal name information.
9.6.1
TTL input characteristics
Table 25:
State
TTL characteristics
Voltage
Current
Input high
Input low
1.9 < VIH < 5.5V
-0.5V < VIL < 0.9V
2.4 < VOH < 5.25V
VOL < 0.5V
IIH = 500nA max.
IOL = 500nA max.
IOH < -3mA
Output high (-EN Bypass A, B)
Output low (-EN Bypass A, B)
Output high (-Parallel ESI)
IOL < 3mA
2.4 < VOH < 0.9 VCC
VOH > 0.9VCC
IOH < -2.4mA
I
OH < -500µA
Output low (-Parallel ESI)
0 < VOL < .45V
IOL < 2.4mA
IOH < -1.6mA
Output high (all other outputs)
2.4 < VOH < 0.9 VCC
VOH > 0.9VCC
I
OH < -500µA
Output low (all other outputs)
0 < VOL < .45V
IOL < 1.6mA
9.6.2
LED driver signals
Fault and Active LED signals are located in the FC-SCA connector (J1) and through the indicator connector
Table 26:
State
LED drive signal
Current drive available
Output voltage
LED off, high
LED on, low
0 < IOH < 100µA
IOL < -30 mA
0 < VOL < 0.8V
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Cheetah 10K.6 FC Product Manual, Rev. B
9.6.3 Differential PECL output
61
The serial PECL output signal voltage characteristics are provided in Table 27. The outputs are not AC coupled
in order to deliver maximum signal without rise and fall time degradation. You must AC couple the receiver to
isolate potentially different DC characteristics of the outputs and the receiver.
Table 27:
Differential PECL output characteristics
Parameter
Description
Serial output voltage swing
600 < Vout < 1300 mV
Figure 24 provides the data output valid eye diagram relative to the bit cell time. Table 29 lists the data values.
Bit Time
XMIT Eye
Figure 24.
9.6.4
Transmit eye diagram
Differential PECL input
Table 28:
Differential PECL input characteristics
Parameter
Description
Notes
Serial input voltage swing
400 < Vin < 2.000 mV
AC coupled
Figure 25 provides the data valid eye diagram for typical and minimum requirements to recover data at the
specified interface error rate. The inputs are AC coupled on the drive. Table 29 lists the data values.
Bit Time
RCV Eye
(typical)
(minimum)
Figure 25.
Receive eye diagram
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Cheetah 10K.6 FC Product Manual, Rev. B
63
10.0
Seagate Technology support services
Online Services
Internet
www.seagate.com for information about Seagate products and services. Worldwide support is available 24
hours daily by e-mail for your disc or tape questions.
Presales Support:
Technical Support:
Reseller Marketplace
Reseller Marketplace is the storage industry’s first collaborative, e-commerce marketplace offering resellers
the fastest, most efficient online purchasing process for Seagate storage solutions. The Reseller Marketplace
at marketplace.seagate.com, an exclusive service for US resellers participating in the Seagate Partner Pro-
gram (SPP), is designed to streamline the purchasing process of Seagate solutions and provide unprece-
dented value to Seagate’s resellers through real-time pricing and availability, fast and easy comparison
shopping, and seamless integration with key distributors for a one-stop shopping experience.
For support, questions and comments: reseller.seagate.com/benefits/T1.html or 1-877-271-3285 (toll-free)
9 A.M. to 7 P.M. (eastern time) Monday through Friday.
Tape Purchases
US customers can purchase Seagate data cartridges, tape supplies, accessories, and select Seagate tape
drive products 24 hours daily at buytape.seagate.com.
Automated Services
SeaFONE® (1-800-SEAGATE) is Seagate’s toll-free number (1-800-732-4283) to access our automated self-
help services. Using a touch-tone phone, you can find answers to service phone numbers, commonly asked
questions, troubleshooting tips and specifications for disc drives and tape drives 24 hours daily. International
callers can reach this service by dialing +1-405-936-1234.
SeaFAX® (1-800-SEAGATE) is Seagate’s automated FAX delivery system. Using a touch-tone phone, you can
obtain technical support information by return FAX 24 hours daily.
Presales Support
Presales Support
Our Presales Support staff can help you determine which Seagate products are best suited for your specific
application or computer system.
Technical Support
If you need help installing your drive, consult your dealer. Dealers are familiar with their unique system configu-
rations and can help you with system conflicts and other technical issues. If you need additional help, you can
talk to a Seagate technical support specialist. Before calling, note your system configuration and drive model
number (ST####).
SeaTDD™ (+1-405-936-1687) is a telecommunications device for the deaf (TDD). You can send questions or
comments 24 hours daily and exchange messages with a technical support specialist from 8:00 A.M. to
11:45 A.M. and 1:00 P.M. to 6:00 P.M. (central time) Monday through Friday.
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Cheetah 10K.6 FC Product Manual, Rev. B
Customer Service (CSO)
Warranty Service
Seagate offers worldwide customer support for Seagate drives. Seagate direct OEM, Distribution and System
Integrator customers should contact their Seagate service center representative for warranty information.
Other customers should contact their place of purchase.
Authorized Service Centers
If you live outside the US, you can contact an Authorized Service Center for service.
USA/Canada/Latin America Support Services
Presales Support
Call Center
Disc:
Toll-free
Direct dial
FAX
1-877-271-3285
+405-936-1210
+1-405-936-1683
Tape:
1-800-626-6637
+1-714-641-2500
+1-714-641-2410
Technical Support (SeaFONE)
1-800-SEAGATE or +1-405-936-1234 (for specific product phone number)
FAX: Disc: +1-405-936-1685; Tape and Server Appliance: +1-405-936-1683
SeaFAX
SeaTDD
1-800-SEAGATE
+1-405-936-1687
Warranty Service
Call Center
Toll-free
Direct dial
FAX / Internet
USA, Mexico and
1-800-468-3472
+1-405-936-1456
+1-405-936-1462
Latin America
Canada
Memofix1
1-800-636-6349
1-800-624-9857
+1-905-660-4936
+1-905-890-3099
+1-905-660-4951
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+1-905-812-3977
Brazil
MA Centro de Serviços*
—
+55-21-2509-7267
+55-21-2507-6672
e-mail: [email protected]
European Support Services
For European customer support, dial the toll-free number for your specific country for presales support, techni-
cal support, SeaFAX and warranty service.
If your country is not listed here, dial our European call center at +31-20-316-7222 from 8:30 A.M. to 5:00 P.M.
(European central time) Monday through Friday. The European call center is located in Amsterdam, The Neth-
erlands.
Call Center
Austria
0 800-20 12 90
0 800-74 876
80 88 12 66
0 800-90 90 52
0 800-182 6831
1 800-55 21 22
800-790695
Belgium
Denmark
France
Germany
Ireland
Italy
Netherlands
Norway
Poland
0 800-732 4283
800-113 91
00 800-311 12 38
1. Authorized Service Centers
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Cheetah 10K.6 FC Product Manual, Rev. B
65
Spain
900-98 31 24
Sweden
0 207 90 073
Switzerland
Turkey
United Kingdom
0 800-83 84 11
00 800-31 92 91 40
0 800-783 5177
FAX Services—All European Countries
Presales/Technical Support/Warranty Service 31-20-653-3513
Africa/Middle East Support Services
For presales, technical support, warranty service and FAX services in Africa and the Middle East, dial our
European call center at +31-20-316-7222 from 8:30 A.M. to 5:00 P.M. (European central time) Monday through
Friday, or send a FAX to +31-20-653-3513. The European call center is located in Amsterdam, The Nether-
lands.
Asia/Pacific Support Services
For Asia/Pacific presales and technical support, dial the toll-free number for your specific country. The Asia/
Pacific toll-free numbers are available from 6:00 A.M. to 10:45 A.M. and 12:00 P.M. to 6:00 P.M. (Australian east-
ern time) Monday through Friday. If your country is not listed here, direct dial one of our technical support loca-
tions.
Call Center
Australia
China
Toll-free
1800-14-7201
—
Direct dial
—
—
FAX
—
+86-10-6871-4316
Hong Kong
800-90-0474
1-600-33-1104
001-803-1-003-2165
—
—
—
—
—
+852-2368 7173
—
—
India1
Indonesia
Japan
+81-3-5462-2978
Malaysia
New Zealand
Singapore
Taiwan
1-800-80-2335
0800-443988
800-1101-150
—
—
—
—
—
—
+65-6488-7525
+886-2-2715-2923
—
+886-2-2514-2237
—
Thailand
001-800-11-0032165
Warranty Service
Call Center
Asia/Pacific
Toll-free
—
1800-12-9277
Direct dial
+65-6485-3595
—
FAX
+65-6485-4860
—
Australia
1. Authorized Service Center
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66
Cheetah 10K.6 FC Product Manual, Rev. B
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Cheetah 10K.6 FC Product Manual, Rev. B
67
Index
Numerics
12 volt
C
capacity
A
ANSI documents
connector
auto write and read reallocation
B
D
data block size
data heads
data rate
buffer
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68
Cheetah 10K.6 FC Product Manual, Rev. B
environmental
error
error correction code
extended link service
Disconnect/reconnect control (page 02h) command
F
FC-AL
Download microcode with offsets and save mode (7)
FCP
E
electrical
enable bypass
FLOGI
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Cheetah 10K.6 FC Product Manual, Rev. B
69
J
function
L
latency
G
H
hard assigned arbitrated loop physical address
heads
loop position
loop position report
I
Information exceptions control page (1Ch) command
M
miscellaneous feature support
miscellaneous status support
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70
Cheetah 10K.6 FC Product Manual, Rev. B
overhead time
P
P_LOGI
Mode select
Mode sense
motor start
performance characteristics
N
noise
O
old port state
OPEN Full Duplex
OPEN half duplex
private loop
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Cheetah 10K.6 FC Product Manual, Rev. B
71
public loop
S
SCSI interface
Search data
Q
seek error
R
receive eye
seek time
service
reference
signal
Rigid disc drive geometry page
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72
Cheetah 10K.6 FC Product Manual, Rev. B
surface stiffness
synchronized spindle
W
T
X
Z
See also cooling
U
unrecoverable
V
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Seagate Technology LLC
920 Disc Drive, Scotts Valley, California 95066-4544, USA
Publication Number: 100195490, Rev. B, Printed in USA
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