Users Guide Cheetah 10K.
Users Guide Cheetah 10K.
©2003-2005, Seagate Technology LLC All rights reserved Publication number: 100260915, Rev. D July 2005 Seagate and Seagate Technology are registered trademarks of Seagate Technology LLC. Cheetah, SeaTools, SeaFONE, SeaBOARD, SeaTDD, and the Wave logo 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.
Revision status summary sheet Revision Rev. A Rev. B Rev. C Rev. D Date 03/17/04 09/22/04 05/05/05 07/21/05 Sheets Affected 1/1, v-viii, 1-83. Pages 9, 12, 1, 18, 25, 26, 28-34, 37, 43, 44, 58, and 87-90 Pages 11, 17, 27, 56, 60, 61, and 62. Pages 4 and 12.
Contents 1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 Applicable standards and reference documentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1.1 Electromagnetic compatibility. . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.1 Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.2 Relative humidity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.3 Effective altitude (sea level) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.4 Shock and vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6.4.5 Air cleanliness . . . . . . .
List of Figures Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. Figure 23. Figure 24. Figure 25. Figure 26. Figure 27. Cheetah 10K.7 SCSI family drive (ST3300007LC shown) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Typical ST3300007 drive +12 V current profile . . . . . . . . . . . . . . . . . . . . . . . . . .
viii Cheetah 10K.7 SCSI Product Manual, Rev.
1.0 Scope This manual describes Seagate® Technology LLC, Cheetah® 10K.7 SCSI disc drives. Cheetah 10K.7 SCSI drives support the small computer system interface (SCSI) as described in the ANSI SCSI SPI-3 interface specifications to the extent described in this manual. The SCSI Interface Product Manual (part number 75789509) describes general SCSI interface characteristics of this and other families of Seagate drives. From this point on in this product manual the reference to Cheetah 10K.
2 Cheetah 10K.7 SCSI Product Manual, Rev.
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 optimum 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 regulation.
2.2 Electromagnetic compliance Seagate uses an independent laboratory to confirm compliance to the directives/standard(s) for CE Marking and C-Tick Marking. The drive was tested in a representative system for typical applications. The selected system represents the most popular characteristics for test platforms. The system configurations include: • Typical current use microprocessor • 3.
2.4 Reference documents Cheetah 10K.
6 Cheetah 10K.7 SCSI Product Manual, Rev.
3.0 General description Cheetah 10K.7 SCSI drives combine giant magnetoresistive (GMR) heads, partial response/maximum likelihood (PRML) read channel electronics, embedded servo technology, and a wide Ultra320 SCSI interface to provide high performance, high ] data storage for a variety of systems including engineering workstations, network servers, mainframes, and supercomputers. Ultra320 SCSI uses negotiated transfer rates.
Cheetah 10K.7 SCSI 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 drive automatically goes to the landing zone when power is removed. An automatic shipping lock prevents potential damage to the heads and discs that results from movement during shipping and handling. The shipping lock automatically disengages when power is applied to the drive and the head load process begins.
3.3 Performance • Supports industry standard Ultra320 SCSI interface • Programmable multi-segmentable cache buffer (see Section 4.5) • 10,000 RPM spindle. Average latency = (3.00) ms • Command queuing of up to 64 commands • Background processing of queue • Supports start and stop commands (spindle stops spinning) 3.4 Reliability • Annualized Failure Rate (AFR) of 0.
3.5.1 Programmable drive capacity Using the Mode Select command, the drive can change its capacity to something less than maximum. See the Mode Select Parameter List table in the SCSI Interface Product Manual. Refer to the Parameter list block descriptor number of blocks field. A value of zero in the number of blocks field indicates that the drive shall not change the capacity it is currently formatted to have.
4.0 Performance characteristics 4.1 Internal drive characteristics (transparent to user) Drive capacity Read/write heads Bytes/track Bytes/surface Tracks/surface (total) Tracks/inch Peak bits/inch Internal data rate Disc rotational speed Average rotational latency 4.2 ST3300007 ST3146707 ST373207 300.0 8 556 50.5 90,774 105,000 658 470 - 944 10,000 3.00 146.8 4 556 50.5 90,774 105,000 658 470 - 944 10,000 3.00 73.4 2 556 50.5 90,774 105,000 658 470 - 944 10,000 3.
4.2.1 Access time [4] Not including controller overhead (without disconnect) [1] (ST3300007 data shown) Drive level Read Write msec Average—Typical [2] Single Track—Typical [2] Full Stroke—Typical [2] 4.2.2 4.9 0.45 9.9 5.4 0.65 10.5 Format command execution time (minutes) [1] ST3300007 ST3146707 ST373207 Maximum (with verify) 200 100 50 Maximum (no verify) 100 50 25 4.2.
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 Average rotational latency 3.0 msec Notes for Section 4.2. [1] [2] [3] [4] 4.
is initiated. If cache operation is not enabled, the buffer (still segmented with 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.
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 generated. The Synchronize Cache command may be used to force the drive to write all cached write data to the medium.
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5.0 Reliability specifications The following reliability specifications assume correct host/drive operational interface, including all interface timings, power supply voltages, environmental requirements and drive mounting constraints (see Section 8.4).
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 (Error code = 15h or 02h) will be reported with a Hardware error (04h) in the Sense Key. Recoverable seek errors are specified at Less than 10 errors in 108 seeks.
Seagate Cheetah 10K.7 SCSI disc drives support all four hot plugging cases. Provision shall be made by the system such that a device being inserted makes power and ground connections prior to the connection of any device signal contact to the bus. A device being removed shall maintain power and ground connections after the disconnection of any device signal contact from the bus (see SFF-8451 Specification for SCA-2 Unshielded Connections).
Performance impact S.M.A.R.T. attribute data will be saved to the disc for the purpose of recreating the events that caused a predictive failure. The drive will measure and save parameters once every two hours subject to an idle period on the SCSI bus. The process of measuring off-line attribute data and saving data to the disc is uninterruptable and the maximum delay is summarized below: Maximum processing delay On-line only delay DEXCPT = 0, PERF = 1 S.M.A.R.T.
The thermal monitor system generates a warning code of 01-0B01 when the temperature exceeds the specified limit in compliance with the SCSI standard. The drive temperature is reported in the FRU code field of mode sense data. You can use this information to determine if the warning is due to the temperature exceeding the drive threatening temperature or the user-specified temperature.
5.2.6.1 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.
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.
Shipping When transporting or shipping a drive, a Seagate approved container must be used. Keep your original box. They 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 transit. Contact your Authorized Seagate Distributor to purchase additional boxes.
6.0 Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 10K.7 SCSI drive. 6.1 AC power requirements None. 6.2 DC power requirements The voltage and current requirements for a single drive are shown in the following tables. Values indicated apply at the drive power connector. The table shows current values in Amperes.
ST3146707 Notes Voltage SE mode LVD mode +5 V +12 V +5 V +12 V [5] ±5% ±5%[2] ±5% ±5%[2] [1][7] 0.54 0.42 0.54 0.42 [3] [3] 0.77 1.09 1.89 3.66 0.76 1.06 1.89 3.83 Delayed motor start (max) DC 3σ [1][4] 0.54 0.06 0.54 0.06 Peak operating current DC Maximum DC Maximum (peak) DC [1][6] [1] 0.60 0.62 1.52 0.81 0.83 2.50 0.61 0.63 1.44 0.83 0.85 2.
three-quarters to maximum track. General Notes from Table 2: 1. Minimum current loading for each supply voltage is not less than 1.2% of the maximum operating current shown. 2. The +5 and +12 volt supplies shall employ separate ground returns. 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 starting current must be available to each device. 4.
Figure 2. Typical ST3300007 drive +12 V current profile Figure 3. Typical ST3300007 drive +5 V current profile 28 Cheetah 10K.7 SCSI Product Manual, Rev.
Figure 4. Typical ST3146707 drive +12 V current profile Figure 5. Typical ST3146707 drive +5 V current profile Cheetah 10K.7 SCSI Product Manual, Rev.
Figure 6. Typical ST373207 drive +12 V current profile Figure 7. Typical ST373207 drive +5 V current profile 30 Cheetah 10K.7 SCSI Product Manual, Rev.
6.3 Power dissipation ST3300007 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 10.14 watts (34.60 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 10.14 watts (34.60 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 8 and 9).
ST3146707 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 7.74 watts (26.41 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 7.74 watts (26.41 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 8 and 9).
ST373207 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 6.78 watts (23.14 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 6.78 watts (23.14 BTUs per hour). To obtain operating power for typical random read operations, refer to the following two I/O rate curves (see Figures 8 and 9).
6.4 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). 6.4.1 Temperature a. Operating The maximum allowable continuous or sustained HDA case temperature for the rated AFR is 122°F (50°C) The maximum allowable HDA case temperature is 60°C.
6.4.4 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.
Z X Y Z Y X Figure 15. Recommended mounting 36 Cheetah 10K.7 SCSI Product Manual, Rev.
6.4.4.2 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 0.5 GRMS b.
6.4.7 Acoustics Sound power during idle mode shall be 3.3 bels typical, or better, 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 measured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive. 6.4.8 Electromagnetic susceptibility See Section 2.1.2. 6.
K S [1] // T -Z- -Z- L J H B Notes: -X- R A V -Z- M [1] 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 (0.678 nm) with minimum full thread engagement of 0.12 in. (3.05 mm). C U -XA B C D E F H J K L M P R S T U V P F [1] Dimension Table Millimeters Inches 1.028 max 26.10 max 5.787 max 147.00 max 4.000 +/- .010 101.60 +/- .25 3.750 +/- .010 95.25 +/- .25 .
K S // T -Z- -Z- [1] L J H B Notes: [1] 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 (0.678 nm) with minimum full thread engagement of 0.12 in. (3.05 mm). A -Z- M C R N -Z- -X- U -XA B C D E F H J K L M N P R S T U P F [1] Dimension Table Millimeters Inches 1.028 max 26.10 max 5.787 max 147.00 max 4.000 +/- .010 101.60 +/- .25 3.750 +/- .010 95.25 +/- .25 .
7.0 Defect and error management The drive, as delivered, complies with this specification. The read error rate and specified storage capacity are not dependent upon use of defect management routines by the host (initiator). Defect and error management in the SCSI system involves the drive internal defect/error management and SCSI systems error considerations (errors in communications between Initiator and the drive).
used when data integrity is not a concern and speed is of utmost importance. If the Recovery Time Limit or retry count is reached during error recovery, the state of the RC bit is examined. If the RC bit is set, the drive will transfer the unrecovered data with no error indication and continue to execute the remaining command. If the RC bit is not set, the drive will stop data transfer with the last good LBA, and report a “Check Condition, Unrecovered Read Error.” 42 Cheetah 10K.
Table 3: Read and write retry count maximum recovery times [1] Read retry count [1] Maximum recovery time per LBA (cumulative, msec) Write retry count Maximum recovery time per LBA (cumulative, msec) 0 77.7 0 35.9 1 89.7 1 53.8 2 305.0 2 83.7 3 352.8 3 101.7 4 400.7 4 179.4 5 418.6 5 424.6 (default) 6 466.4 7 586.0 8 675.7 9 723.5 10 777.3 11 1,064.4 12 1,877.7 (default) [1] These values are subject to change.
7.4 Background Media Scan Background Media Scan (BGMS) is a self-initiated media scan. It performs sequential reads across the entire pack of the media while the drive is idle. In RAID arrays, BGMS allows hot spare drives to be scanned for defects prior to being put into service by the host system. On regualr duty drives, if the host system makes use of the BGMS Log Page, it can avoid placing data in suspect locations on the media.
8.0 Note. Installation These drives are designed to be used only on single-ended (SE) or low voltage differential (LVD) busses. Do not install these drives on a high voltage differential (HVD) bus. The first thing to do when installing a drive is to set the drive SCSI ID and set up certain operating options. This is usually done by installing small shorting jumpers on the pins of connectors J2 and J6 on the PCBA (or J5Auxiliary on the LW model), or via the drive to host I/O signals on the LC model.
Drive Front Pin 1 J6 [1] L R E EA A A A D S 3 2 1 0 (default) SCSI ID = 0 SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 [2] SCSI ID = 8 SCSI ID = 9 SCSI ID = 10 SCSI ID = 11 SCSI ID = 12 SCSI ID = 13 SCSI ID = 14 SCSI ID = 15 [4] Host Alternate Usage Plug Reserved 11 9 7 5 3 1 Shipped with cover installed. Do not install jumpers; retain cover.
Drive HDA (rear view, PCB facing downward) Pin 1 J5 Pin 1 +5V Ground [1] 4P 3P 2P 1P J1-DC Power 68 Pin SCSI I/O Connector J1 SCSI ID = 0 (default) PCB SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 For ID selection use jumpers as shown or connect a cable for remote switching as shown below.
J2 Jumper Positions Pin 1 RR S D MW P E E T E S EP DSS P Force single-ended bus mode Delay Motor Start [2] Enable Remote Motor Start Write Protect Parity Disable *Additional notes on these functions in section 8.1.2. Reserved (applies to LW models only; reserved on LC models) [3] Term. Power to SCSI Bus J2 Jumper Plug (enlarged to show detail) J2 J6 Drive Front Figure 20. J2 option select header (on LW models only) 8.1.1 [1] Notes for Figures 18, 19, and 20.
8.1.2 Function description J2 jumper installation SE On Off Forces drive to use single-ended I/O drivers/receivers only. Drive can operate on the interface in low voltage differential mode or single-ended, depending on the voltage state of the I/O “DIFFSNS” line. Default is SE jumper not installed. DS Off Off On ME Off On Off On On WP On Off PD On Off RES Off TP Off On Note. Jumper function description Spindle starts immediately after power up - Default setting.
8.2 Drive orientation The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive performance characterization, however, has been done with the drive in horizontal (discs level) and vertical (drive on its side) orientations, and these are the two preferred mounting orientations. 8.3 Cooling The host enclosure must dissipate heat from the drive.
8.4 Drive mounting When mounting the drive using the bottom holes (x-y plane in Figure 15) care must be taken to ensure that the drive is not physically distorted due to a stiff non-flat mounting surface. The allowable mounting surface stiffness is 80 lb/in (14.0 N/mm).
52 Cheetah 10K.7 SCSI Product Manual, Rev.
9.0 Interface requirements This section partially describes the interface requirements as implemented on the drives. 9.1 General description This section describes in essentially general terms the interface requirements supported by the Cheetah 10K.7 SCSI. No attempt is made to describe all of the minute details of conditions and constraints that must be considered by designers when designing a system in which this family of drives can properly operate.
Table 4: SCSI messages supported by Cheetah 10K.7 SCSI family drives (Continued) Message name Release recovery Restore pointers Save data pointer Synchronous data transfer req. Target transfer disable Terminate I/O process Wide data transfer request Notes. [1] Extended messages (see the SCSI Interface Product Manual). [2] Supports all options except qas_req and iu_req. 9.
Table 5: Commands supported by Cheetah 10K.
Table 5: Commands supported by Cheetah 10K.
Table 5: Commands supported by Cheetah 10K.
Table 6 lists the Standard Inquiry command data that the drive should return to the initiator per the format given in the SCSI Interface Product Manual, part number 75789509, Inquiry command section. Table 6: Cheetah 10K.
9.3.2 Mode Sense data The Mode Sense command provides a means for the drive to report its operating parameters to the initiator. The drive maintains four sets of Mode parameters, Default values, Saved values, Current values and Changeable values. Default values are hard coded in the drive firmware that is stored in flash EPROM nonvolatile memory on the drive PCBA. Default values can be changed only by downloading a complete set of new firmware into the flash EPROM.
Table 7: ST3300007 Mode sense data MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 22 ec b2 5c 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0c ff 00 00 00 05 00 ff ff DEF 81 0a c0 0c ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff SAV 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 DEF 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 00 00 87 00 00 00 SAV 83 16 3b 18 00 00 00 28 00 00 03 29 02 00 00 01 01 10 00 78 40 00 00 00 DEF 83 16 3b 18 00 0
Table 8: ST3146707 Mode sense data MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 11 17 73 30 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0c ff 00 00 00 05 00 ff ff DEF 81 0a c0 0c ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff SAV 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 DEF 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 00 00 87 00 00 00 SAV 83 16 1d 8c 00 00 00 14 00 00 03 29 02 00 00 01 01 10 00 78 40 00 00 00 DEF 83 16 1d 8c 00 0
Table 9: ST373207 Mode sense data MODE SENSE (10 BYTE) HEADER DATA 00 ae 00 10 00 00 00 08 08 8b b9 98 00 00 02 00 MODE SENSE PAGES DATA SAV 81 0a c0 0c ff 00 00 00 05 00 ff ff DEF 81 0a c0 0c ff 00 00 00 05 00 ff ff CHG 81 0a ff ff 00 00 00 00 ff 00 ff ff SAV 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 DEF 82 0e 80 80 00 0a 00 00 00 00 00 00 00 00 00 00 CHG 82 0e ff ff 00 00 00 00 00 00 00 00 87 00 00 00 SAV 83 16 0e c6 00 00 00 0a 00 00 03 29 02 00 00 01 01 74 00 78 40 00 00 00 DEF 83 16 0e c6 00 00
9.4 SCSI bus conditions and miscellaneous features supported Asynchronous SCSI bus conditions supported by the drive are listed below. These conditions cause the SCSI device to perform certain actions and can alter the SCSI bus phase sequence. Other miscellaneous operating features supported are also listed here. Refer to the SCSI Interface Product Manual for details.
9.5 Synchronous data transfer The data transfer period to be used by the drive and the initiator is established by an exchange of messages during the Message Phase of operation. See the section on message protocol in the SCSI Interface Product Manual, part number 75789509. 9.5.1 Synchronous data transfer periods supported In the following tables, M is the synchronous period value (in the transfer rate negotiation message) that represents the associated transfer period and transfer rate values.
9.6.1 DC cable and connector LW model drives receive DC power through a 4-pin connector (see Figure 24 for pin assignment) mounted at the rear of the main PCBA. Recommended part numbers of the mating connector are listed below, but equivalent parts may be used. Type of cable Connector Contacts (20-14 AWG) 14 AWG MP 1-480424-0 AMP 60619-4 (Loose Piece) AMP 61117-4 (Strip) LC model drives receive power through the 80-pin I/O connector. See Tables 16 and 17. Cheetah 10K.7 SCSI Product Manual, Rev.
Pin 1P 2P 3P 4P J1 Pin 1 Power +12V +12V ret + 5V ret + 5V J5 Pin 1A J1-DC Power 4P 3P 2P 1P PCB J1-DC Power J5 Pin 1A Pin 1P J1 Pin 1 68 Pin SCSI I/O Connector J6 Figure 22. LW model drive physical interface (68-pin J1 SCSI I/O connector) J6 Figure 23. LC model drive physical interface (80-pin J1 SCSI I/O connector) 66 Cheetah 10K.7 SCSI Product Manual, Rev.
9.6.2 SCSI interface physical description Cheetah 10K.7 SCSI drives support the physical interface requirements of the Ultra320 SCSI Parallel Interface-4 (SPI-4), and operate compatibly at the interface with devices that support earlier SCSI-2 and SCSI-3 standards.
Table 13: Interface transfer rates supported Maximum transfer rate Interface type/ drive models Asynchronous Fast-5 Fast-10 Fast-20 (Ultra) Fast-40 (Ultra2) Fast-80 (Ultra160) Fast-160 (Ultra320) SE ST3300007LW/LC ST3146707LW/LC ST373207LW/LC yes yes yes yes no no no LVD ST3300007LW/LC ST3146707LW/LC ST373207LW/LC yes yes yes yes yes yes yes 9.6.
9.6.4.1 Mating connectors for LW model drives The nonshielded cable connector shall be a 68 conductor connector consisting of two rows of 34 male contacts with adjacent contacts 0.050 inch (1.27 mm) apart. Recommended mating flat cable connector part numbers are: Amp Model 786096-7 Female, 68-pin, panel mount Amp Model 786090-7 Female, 68-pin, cable mount Amp Model 749925-5 (50 mil conductor centers, 28 or 30 AWG wire) Use two, 34 conductor, 50 mil center flat cable with this connector.
Recommended mating 80-position PCBA mount connectors: Straight-in connector Seagate P/N: Amp US P/N: or Amp US P/N: or Amp Japan P/N: 77678703 2-557103-1 94-0680-02-1 2-557103-2 94-0680-02-2 5-175475-9 Hot plug version (with ground guide-pin) 787311-1 with polarization 787311-2 without polarization Right-angle to PCBA connectors Seagate P/N: 77678559 Amp US P/N: 2-557101-1 Amp Japan P/N: 5-175474-9 For additional information call Amp FAX service at 1-800-522-6752. 70 Cheetah 10K.
LW/LWV Model Terminator [7] [6] 2 through X SCSI devices [4] SCSI ID 7 [5] Pin 1 (check your adapter for Pin 1 location) [1] [2] SCSI ID 1 Host Adapter PCB SCSI ID 0 [3] [2] [1] [2] [3] [4] [5] [6] [7] Closed end type 68-pin connector used. Terminators enabled. Open end type (in-line application) connector used. Host need not be on the end of the bus. Another device can be on the end with the terminator, the host having no terminator.
3.650–.005 .346 .155 1.650 .270 .3937 .050 .600 .0787 .022 .200 .020 .047 .60 (15.24) .519 (13.18) .100 (2.54) 1.816 (46.13) .315 (8.00) Position 1 Pos. 1 .20 typ (5.08) 32 4 .218 (5.54) .050 (1.27) Pos. 35 1.650 (41.91) .0787 (2.00) Pos. 68 .980 (24.89) 1.368 (34.74) .840 – .005 (21.34) Pos. 2 .085 x 45¡ chamfer (2.16) typ Pos. 1 .767 (19.48) 1 .315 – .010 (8.00) +.001 .083 —.002dia (2.1) Trifurcated Pins (4 places) 3.650 (92.71) Figure 25.
7.00 (.276) 12.70 (.500) End View Grounding Pins 2.15–0.10 2 places 57.87 0 (2.278) —0.15 + .000 [ — .006[ 0.15 M Y M —Y— CL of Datum Y Front View Pin 1 62.15 – 0.15 (2.447) (– .005) 0.15 M Y M Insert mating I/O connector Housing X Top View Contact 0.50 (.020) 0.3 M Y M (.012) 1.27 (.05) Typ X CL of Datum Y Pin 1 Grounding Pins Pin 40 Back View Pin 41 Pin 80 Figure 26. Nonshielded 80-pin SCSI “SCA-2” connector, used on LC drives Cheetah 10K.7 SCSI Product Manual, Rev.
Table 14: Note. LW 68-conductor single-ended (SE) P cable signal/pin assignments [11] Note: A minus sign preceding a signal name indicates that signal is active low.
Table 15: Note. LW 68-conductor LVD P cable signal/pin assignments [11] Note: A minus sign preceding a signal name indicates that signal is active low.
Table 16: Note. LC 80-pin single-ended (SE) I/O connector pin assignments [11] A minus sign preceding a signal name indicates that signal is active low.
Table 16: Note. LC 80-pin single-ended (SE) I/O connector pin assignments [11] (Continued) A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] NC [10] 37 77 ACTIVE LED OUT [4] [9] RMT-START [5] [9] [12] 38 78 DLYD-START [6] [9] [12] SCSI ID (0) [7] [9] [12] 39 79 SCSI ID (1) [7] [9] [12] SCSI ID (2) [7] [9] [12] 40 80 SCSI ID (3) [7] [9] [12] Notes [ ]: See page following Table 17.
Table 17: Note. LC 80-pin single-ended (LVD) I/O connector pin assignments [11] A minus sign preceding a signal name indicates that signal is active low.
Table 17: Note. LC 80-pin single-ended (LVD) I/O connector pin assignments [11] (Continued) A minus sign preceding a signal name indicates that signal is active low. Signal name [1] Connector contact number [3] Signal number [3] Contact name[1] NC [10] 37 77 ACTIVE LED OUT [4] [9] RMT_START [5] [9] [12] 38 78 DLYD_START [6] [9] [12] SCSI ID (0) [7] [9] [12] 39 79 SCSI ID (1) [7] [9] [12] SCSI ID (2) [7] [9] [12] 40 80 SCSI ID (3) [7] [9] [12] Notes [ ]: See page following this table.
Notes [ ] for Tables 14 through 17. [1] [2] See Section 9.6.4.1 for detailed electrical characteristics of these signals. The conductor number refers to the conductor position when using 0.025-inch (0.635 mm) centerline flat ribbon cable. Other cables types may be used to implement equivalent contact assignments. [3] Connector contacts are on 0.050 inch (1.27 mm) centers. [4] Front panel LED signal; indicates drive activity for host front panel hard drive activity indicator.
LVD input characteristics Each differential signal received by LVD interface receiver circuits shall have the following input characteristics when measured at the disc drive connector: Steady state Low level input differential voltage = 0.030 V = < Vin = < 3.6 V (signal negation/logic 0) Steady state High level input differential voltage = –3.6 V = < Vin = < –0.030 V (signal assertion/logic 1) Differential voltage = +0.030 V minimum with common-mode voltage range 0.845 V = < Vcm = < 1.655 V.
Single-ended I/O cable pin assignments for LW drives are shown in Table 15. Single-ended I/O pin assignments for LC models are shown in Table 16. The LC model does not require an I/O cable. It is designed to connect directly to a back panel connector. 9.7.1.3 Cables for low voltage differential drivers/receivers The SPI-3 and SPI-4 specification for differential impedance for LVD cables is 122.5 ± 12.5 ohms.
Table 20: Cable description Example Twist-n-flat cables - into a multi-drive backplane SingleDifferential ended impedance, impedance, nominal nominal Singleended capacitance, maximum Time delay, nominal Maximum twist-n-flat Conductor cable length DC resistance, U320 U160 nominal transfer rate transfer rate TPE, 22.25” twist, 131 ohms 1.75” flat, (24” flat to flat), 30 AWG solid tinned copper 93 ohms 15.3 pF/ft 1.45 ns/ft 0.105 ohms/ft 3.05 meters (10.0 ft) 6.1 meters (20.0 ft) TPE, 8.
9.10 Disc drive SCSI timing Table 21: Disc drive SCSI timing These values are not current Cheetah 10K.7 SCSI values, but are listed for information only. Description Waveform symbol [1] Waveform table [1] Typical timing Target Select Time (no Arbitration) T00 N/A <1 µs Target Select Time (with Arbitration) T01 4.5-1,2 1.93 µs Target Select to Command T02 4.5-1 3.77 µs Target Select to MSG Out T03 4.5-2 1.57 µs Identify MSG to Command T04 4.5-3 3.36 µs Command to Status T05 4.
Table 21: Disc drive SCSI timing (Continued) These values are not current Cheetah 10K.7 SCSI values, but are listed for information only. Waveform symbol [1] Waveform table [1] Typical timing Next CDB Byte Access (Byte 8 of 10) T23.10.8 4.5-4 0.12 µs ±1 µs Next CDB Byte Access (Byte 9 of 10) T23.10.9 4.5-4 0.12 µs ±1 µs Next CDB Byte Access (Byte 10 of 10) T23.10.10 4.5-4 0.12 µs ±1 µs Data In Byte Transfer (parameter) T24 4.5-12 0.04 µs Data Out Byte Transfer (parameter) T25 4.
9.11 Drive activity LED The following table provides drive activity LED status.
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 questions. Presales Support: www.seagate.com/support/email/email_presales.html or Presales@Seagate.com Technical Support: www.seagate.com/support/email/email_disc_support.html or DiscSupport@Seagate.com mySeagate my.seagate.
Customer Service Operations Warranty Service Seagate offers worldwide customer support for Seagate drives. Seagate distributors, OEMs and other direct customers should contact their Seagate Customer Service Operations (CSO) representative for warrantyrelated issues. Resellers or end users of drive products should contact their place of purchase or one of the Seagate CSO warranty centers for assistance. Have your drive’s “ST” model number and serial number available.
European support services For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your specific location. If your location is not listed here, dial our presales and technical support call center at +1-405324-4714 from 8:00 A.M. to 11:45 A.M. and 1:00 P.M. to 5:00 P.M. (Central Europe time) Monday through Friday. The presales and technical support call center is located in Oklahoma City, USA.
Asia/Pacific support services For Asia/Pacific presales and technical support, dial the toll-free number for your specific location. 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 Eastern time) Monday through Friday, except as noted. If your location is not listed here, direct dial one of our technical support locations. Warranty service is available from 9:00 A.M. to 6:00 P.M. April through October, and 10:00 A.M. to 7:00 P.M.
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Index Symbols +5 and +12 volt supplies 27 Numerics 68 conductor connector 69 68-pin connector 71 80 conductor connector 69 80 conductor interface 69 80-pin connector option 68 80-pin I/O connector 76, 78 A AC power 25 access time 12 accessories 10 acoustics 38 activity indicator 80 activity LED 86 actuator 9, 50 actuator assembly 8 address 13 AFR 9, 18 air cleanliness 37 air flow 50 suggested 50 altitude 34 altitude and atmospheric pressure 34 ambient 34 ANSI SCSI documents 5 arbitration priority 71 async
data transfer rate 12 DC cable and connector 65 DC current 67 DC power 13, 17, 49, 65 DC power carrying conductor 69 DC power connector 64 DC power requirements 25 DC power source 69 dedicated landing zone 8 default 48, 49 default mode parameter 45 default value 59 defect/error management 41 delayed motor start option 25, 26, 80 delayed start 49 diagnostics 27 differential I/O circuit 49 differentiating features 7 dimensions 38 disable read ahead 15 disc access 13 disc media 12 disc rotational speed 11 disc
host system malfunction 17 host/drive operational interface 17 hot plug 8, 18 humidity 34 I I/O connector 67 identified defect 41 idle condition 31, 32, 33 Input characteristics 81 inquiry command 58 inquiry vital product data 58 installation 45 installation guide 10 installation instructions 45 instantaneous current peak 26 interface cable length 71 interface data 12 interface requirements 53 interface timing 17 internal data rate 11 J J1-auxiliary 45 jumper 10, 45, 48, 49, 80 jumper function description
P package size 35 package test specification 5 packaged 35 parity 49 parity checking 49 parity error 49 PCB 48 PCBA 45, 51, 59, 65, 67, 70 PCBA circuit run 67 PD jumper 49 peak bits/inch 11 peak starting current 27 performance characteristics 11 performance degradation 35 peripheral I/O cable 27 physical buffer space 13 physical characteristics 64 physical damage 37 physical interface 64, 66 physically contiguous blocks of data 15 power 27, 49 power connector 25, 27 power control switch 13 power dissipation
Self-Monitoring Analysis and Reporting Technology. See S.M.A.R.T.
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Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100260915, Rev.
