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Seagate CHEETAH ST3146707LW/LC User Manual

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Cheetah 10K.7 SCSI
ST3300007LW/LC
ST3146707LW/LC
ST373207LW/LC

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Summary of Contents for Seagate CHEETAH ST3146707LW/LC

  • Page 1 Users Guide Cheetah 10K.7 SCSI ST3300007LW/LC ST3146707LW/LC ST373207LW/LC...
  • Page 3 Users Guide Cheetah 10K.7 SCSI ST3300007LW/LC ST3146707LW/LC ST373207LW/LC...
  • Page 4 Seagate Technology LLC. Other product names are regis- tered trademarks or trademarks of their owners. Seagate reserves the right to change, without notice, product offerings or specifications. No part of this publication may be reproduced in any form without written permission of Seagate Technology LLC.
  • Page 5 Revision Date Rev. A 03/17/04 Rev. B 09/22/04 Rev. C 05/05/05 Rev. D 07/21/05 Revision status summary sheet 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.

  • Page 7: Table Of Contents

    Scope ............... . 1 Applicable standards and reference documentation .
  • Page 8 Seagate Technology support services ........
  • Page 9 Figure 1. Cheetah 10K.7 SCSI family drive (ST3300007LC shown) ......1 Figure 2. Typical ST3300007 drive +12 V current profile .
  • Page 10 viii Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 11: Scope

    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.
  • Page 12 Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 13: Applicable Standards And Reference Documentation

    Mounting by bottom holes must meet the requirements of Section 8.4. Standards The Cheetah 10K.7 SCSI family complies with Seagate standards as noted in the appropriate sections of this Manual and the Seagate SCSI Interface Product Manual, part number 75789509.

  • Page 14: Electromagnetic Compliance

    • External modem • Mouse Although the test system with this Seagate model complies to the directives/standard(s), we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide CE Marking and C-Tick Marking for their product.

  • Page 15: Reference Documents

    SFF-8451 Package Test Specification Package Test Specification Specification, Acoustic Test Requirements, and Procedures Seagate P/N 30553-001 In case of conflict between this document and any referenced document, this document takes precedence. Cheetah 10K.7 SCSI Product Manual, Rev. D Seagate P/N 100260917...
  • Page 16 Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 17: General Description

    (volume 1), which defines the product performance char- acteristics of the Cheetah 10K.7 SCSI family of drives, and the SCSI Interface Product Manual (volume 2), part number 75789509, which describes the general interface characteristics of this and other families of Seagate SCSI drives.

  • Page 18: Standard Features

    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 dur- ing shipping and handling.

  • Page 19: Performance

    139,463,602 137,577,184 2. Seagate drives also may be used at the maximum available capacity at a given sector size, but the excess capacity above the guaranteed level will vary between 10K and 15K families and from generation to gener- ation, depending on how each sector size actually formats out for zone frequencies and splits over servo bursts.

  • Page 20: Programmable Drive Capacity

    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.

  • Page 21: Performance Characteristics

    Performance characteristics Internal drive characteristics (transparent to user) ST3300007 Drive capacity 300.0 Read/write heads Bytes/track Bytes/surface 50.5 Tracks/surface (total) 90,774 Tracks/inch 105,000 Peak bits/inch Internal data rate 470 - 944 Disc rotational speed 10,000 Average rotational latency 3.00 SCSI performance characteristics (visible to user) The values given in Section 4.2.1 apply to all models of the Cheetah 10K.7 SCSI family unless otherwise spec- ified.

  • Page 22: Access Time [4]

    4.2.1 Access time [4] Not including controller overhead (without disconnect) [1] (ST3300007 data shown) Drive level Read Average—Typical [2] Single Track—Typical [2] 0.45 Full Stroke—Typical [2] 4.2.2 Format command execution time (minutes) [1] ST3300007 Maximum (with verify) Maximum (no verify) 4.2.3 Generalized performance characteristics Minimum sector interleave...

  • Page 23: Start/Stop Time

    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 Flaw reallocation performance impact (for flaws reallocated at format time using the spare sectors per sparing zone reallocation scheme.) Average rotational latency Notes for Section 4.2.

  • Page 24: Caching Write Data

    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.

  • Page 25: Prefetch Operation

    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.
  • Page 26 Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 27: Reliability Specifications

    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). Seek Errors Read Error Rates [1] Recovered Data Unrecovered Data Miscorrected Data Service Life Preventive Maintenance Note.

  • Page 28: Seek Errors

    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.

  • Page 29: S.m.a.r.t

    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).

  • Page 30: Thermal Monitor

    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 predic- tive failure. The drive will measure and save parameters once every two hours subject to an idle period on the SCSI bus.

  • Page 31: Drive Self Test (Dst)

    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. Cheetah 10K.7 SCSI Product Manual, Rev. D...
  • Page 32 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 Seagate SCSI Interface Product Manual, part number 75789509, for additional information about invoking DST.

  • Page 33: Product Warranty

    Seagate’s option and at no charge to 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 customer.
  • Page 34 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 con- tainer voids the drive warranty. Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran- sit.

  • Page 35: Physical/Electrical Specifications

    Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 10K.7 SCSI drive. AC power requirements None. 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.
  • Page 36 Voltage Regulation Average idle current DC Maximum starting current (peak DC) DC (peak AC) AC Delayed motor start (max) DC Peak operating current Maximum DC Maximum (peak) DC Voltage Regulation Average idle current DC Maximum starting current (peak DC) DC (peak AC) AC Delayed motor start (max) DC Peak operating current...

  • Page 37: Conducted Noise Immunity

    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.

  • Page 38: Figure 2. Typical St3300007 Drive +12 V Current Profile

    Figure 2. Typical ST3300007 drive +12 V current profile Figure 3. Typical ST3300007 drive +5 V current profile Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 39: Figure 4. Typical St3146707 Drive +12 V Current Profile

    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. D...

  • Page 40: Figure 6. Typical St373207 Drive +12 V Current Profile

    Figure 6. Typical ST373207 drive +12 V current profile Figure 7. Typical ST373207 drive +5 V current profile Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 41: Power Dissipation

    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).

  • Page 42: Figure 10. St3146707 Dc Current And Power Vs. Input/Output Operations Per Second (Se)

    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).

  • Page 43: Figure 12. St373207 Dc Current And Power Vs. Input/Output Operations Per Second (Se)

    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).

  • Page 44: Environmental Limits

    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.

  • Page 45: Shock And Vibration

    >600 cu in (>9,800 cu cm) 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.

  • Page 46: Figure 15. Recommended Mounting

    Figure 15. Recommended mounting Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 47: Air Cleanliness

    The sil- ver, copper, nickel and gold films used in Seagate products are especially sensitive to the presence of sulfide, chloride, and nitrate contaminants. Sulfur is found to be the most damaging. In addition, electronic components should never be exposed to condensing water on the surface of the printed circuit board assembly (PCBA) or exposed to an ambient relative humidity greater than 95%.

  • Page 48: Acoustics

    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.

  • Page 49: Figure 16. Lw Mounting Configuration Dimensions

    Figure 16. LW mounting configuration dimensions Cheetah 10K.7 SCSI Product Manual, Rev. D Notes: 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.

  • Page 50: Figure 17. Lc Mounting Configuration Dimensions

    -Z- -X- Figure 17. LC mounting configuration dimensions Notes: 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.

  • Page 51: Defect And Error Management

    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).
  • Page 52 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.

  • Page 53: Scsi Systems Errors

    Table 3: Read and write retry count maximum recovery times [1] Read retry Maximum recovery time count [1] per LBA (cumulative, msec) 77.7 89.7 305.0 352.8 400.7 418.6 466.4 586.0 675.7 723.5 777.3 1,064.4 1,877.7 (default) These values are subject to change. Setting these retry counts to a value below the default setting could result in an increased unrecovered error rate which may exceed the value given in this product manual.

  • Page 54: Background Media Scan

    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.

  • Page 55: Installation

    J2, J5-Auxiliary and J6. Suggested part number for the jumpers used on J2 is Molex 52747-0211 (Seagate part number 77679052). A bag with the two jumper plug types is shipped with the standard OEM drives.

  • Page 56: Figure 18. J6 Jumper Header

    Drive Front J6 [1] A 3 A 2 A 1 SCSI ID = 0 SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 SCSI ID = 8 SCSI ID = 9 SCSI ID = 10...

  • Page 57: Figure 19. J5 Jumper Header (On Lw Models Only)

    Drive HDA (rear view, PCB facing downward) Pin 1 68 Pin SCSI ID = 0 SCSI I/O Connector SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 SCSI ID = 8 SCSI ID = 9...

  • Page 58: Notes For Figures 18, 19, And 20

    Force single-ended bus mode Enable Remote Motor Start Additional notes on these Term. Power to SCSI Bus functions in section 8.1.2. Jumper Plug (enlarged to show detail) Figure 20. J2 option select header (on LW models only) 8.1.1 Notes for Figures 18, 19, and 20. Notes explaining the functions of the various jumpers on jumper header connectors J2, J5, and J6 are given here and in Section 8.1.2.

  • Page 59: Function Description

    8.1.2 Function description jumper installation Jumper function description 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, depend- ing on the voltage state of the I/O “DIFFSNS” line. Default is SE jumper not installed. Spindle starts immediately after power up - Default setting.

  • Page 60: Drive Orientation

    Drive orientation The balanced rotary arm actuator design of the drive allows it to be mounted in any orientation. All drive perfor- mance 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. Cooling The host enclosure must dissipate heat from the drive.

  • Page 61: Drive Mounting

    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). The following equation and paragraph define the allowable mounting surface stiffness: k * x = F <...
  • Page 62 Cheetah 10K.7 SCSI Product Manual, Rev. D...

  • Page 63: Interface Requirements

    SCSI. No attempt is made to describe all of the minute details of conditions and constraints that must be con- sidered by designers when designing a system in which this family of drives can properly operate. Seagate declares that the drives operate in accordance with the appropriate ANSI Standards referenced in various places herein, with exceptions as noted herein or in the Seagate SCSI Interface Product Manual.

  • Page 64: Scsi Interface Commands Supported

    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. Extended messages (see the SCSI Interface Product Manual). Supports all options except qas_req and iu_req.
  • Page 65 Table 5: Commands supported by Cheetah 10K.7 SCSI family drive (Continued) Command name DS bit TSD bit ETC bit TMC bit LP bit Log Sense Application Client Log page (0Fh) Buffer Over-run/Under-run page (01h) Cache Statistics page (37h) Factory Log page (3Eh) Last n Deferred Errors or Asynchronous Events page (0Bh) Last n Error Events page (07h) Non-medium Error page (06h)
  • Page 66 Table 5: Commands supported by Cheetah 10K.7 SCSI family drive (Continued) Command name Read Read Buffer (modes 0, 2, 3, Ah and Bh supported) Read Capacity Read Defect Data (10) Read Defect Data (12) Read Extended DPO bit supported FUA bit supported Read Long Reassign Blocks Receive Diagnostic Results...
  • Page 67 Table 5: Commands supported by Cheetah 10K.7 SCSI family drive (Continued) Command name Verify BYTCHK bit Write Write and Verify DPO bit Write Buffer (modes 0, 2, supported) Firmware Download option (modes 5, 7, Ah and Bh supported) [3] Write Extended DPO bit FUA bit Write Long...

  • Page 68: Inquiry Vital Product Data

    03 means SCSI-3 (Ultra160) implemented. Note. Seagate has chosen to set this bit to 03, SCSI-3 (Ultra160) implemented, rather than 04, SCSI-4 (Ultra320) implemented, due to compatibility issues with some host bus adapters. This setting will not affect the Ultra320 functionality of the drive.

  • Page 69: Mode Sense Data

    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 Change- able values. Default values are hard coded in the drive firmware that is stored in flash EPROM nonvolatile memory on the drive PCBA.
  • Page 70 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...
  • Page 71 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...
  • Page 72 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...

  • Page 73: Scsi Bus Conditions And Miscellaneous Features Supported

    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. Table 10: SCSI bus conditions and other miscellaneous features Condition/feature supported by:...

  • Page 74: Synchronous Data Transfer

    Figures 22 and 23 show the locations of the DC power connector, SCSI interface connector, drive select head- ers, and option select headers. Details of the physical, electrical and logical characteristics are given in sections following, while the SCSI operational aspects of Seagate drive interfaces are given in the SCSI Interface Product Manual. Transfer rate (megatransfers/second) 160.0...

  • Page 75: Dc Cable And Connector

    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 equiva- lent parts may be used.

  • Page 76: Figure 22. Lw Model Drive Physical Interface (68-Pin J1 Scsi I/O Connector)

    Power +12V +12V ret + 5V ret + 5V Pin 1 Pin 1A J1-DC Power J1-DC Power Pin 1P Pin 1A Pin 1 68 Pin SCSI I/O Connector Figure 22. LW model drive physical interface (68-pin J1 SCSI I/O connector) Figure 23.

  • Page 77: Scsi Interface Physical Description

    9.6.2 SCSI interface physical description Cheetah 10K.7 SCSI drives support the physical interface requirements of the Ultra320 SCSI Parallel Inter- face-4 (SPI-4), and operate compatibly at the interface with devices that support earlier SCSI-2 and SCSI-3 standards. It should be noted that this is only true if the systems engineering has been correctly done, and if earlier SCSI-2 and SCSI-3 devices respond in an acceptable manner (per applicable SCSI Standards) to reject newer Ultra320 protocol extensions that they don’t support.

  • Page 78: Scsi Interface Cable Requirements

    Table 13: Interface transfer rates supported Maximum transfer rate Interface type/ drive models Asynchronous ST3300007LW/LC ST3146707LW/LC ST373207LW/LC ST3300007LW/LC ST3146707LW/LC ST373207LW/LC 9.6.3 SCSI interface cable requirements The characteristics of cables used to connect parallel interface drives are discussed in the ANSI standards ref- erenced in this section.
  • Page 79 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...
  • Page 80 Recommended mating 80-position PCBA mount connectors: Straight-in connector Seagate P/N: 77678703 Amp US P/N: 2-557103-1 94-0680-02-1 Amp US P/N: 2-557103-2 94-0680-02-2 Amp Japan P/N: 5-175475-9 Right-angle to PCBA connectors Seagate P/N: Amp US P/N: Amp Japan P/N: For additional information call Amp FAX service at 1-800-522-6752.

  • Page 81: Figure 24. Scsi Daisy Chain Interface Cabling For Lw Drives

    SCSI ID 7 [5] Pin 1 (check your adapter for Pin 1 location) Host Adapter 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.

  • Page 82: Figure 25. Nonshielded 68-Pin Scsi Device Connector Used On Lw Drives

    . 1 55 1.650 .050 .022 .100 1.816 (2.54) (46.13) .050 .218 (1.27) (5.54) 1.650 (41.91) Pos. 68 .980 (24.89) Figure 25. Nonshielded 68-pin SCSI device connector used on LW drives 3.650–.005 .346 .270 .3937 .0787 .020 .519 (13.18) Pos. .315 Position 1 (8.00)

  • Page 83: Figure 26. Nonshielded 80-Pin Scsi "Sca-2" Connector, Used On Lc Drives

    (2.278) 0.15 M Y M —Y— Pin 1 62.15 – 0.15 (2.447) (– .005) 0.15 M Y M Housing 1.27 Contact (.05) 0.50 (.020) M Y M (.012) Pin 1 Pin 41 Figure 26. Nonshielded 80-pin SCSI “SCA-2” connector, used on LC drives Cheetah 10K.7 SCSI Product Manual, Rev.
  • Page 84 Table 14: LW 68-conductor single-ended (SE) P cable signal/pin assignments [11] Note. Note: A minus sign preceding a signal name indicates that signal is active low. Signal Connector contact name [1] number [3] TermPwr TermPwr Reserved Notes [ ]: See page following Table 17. Cable conductor Connector number [2]...
  • Page 85 Table 15: LW 68-conductor LVD P cable signal/pin assignments [11] Note. Note: A minus sign preceding a signal name indicates that signal is active low. Connector contact Signal name [1] number [3] +DB12 +DB13 +DB14 +DB15 +DBP1 +DB0 +DB1 +DB2 +DB3 +DB4 +DB5...
  • Page 86 Table 16: LC 80-pin single-ended (SE) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Connector contact Signal name [1] number [3] 12 V CHARGE 12 V 12 V 12 V NC [10] NC [10] –DB11...
  • Page 87 Table 16: LC 80-pin single-ended (SE) I/O connector pin assignments [11] (Continued) Note. A minus sign preceding a signal name indicates that signal is active low. Connector contact Signal name [1] number [3] NC [10] RMT-START [5] [9] [12] SCSI ID (0) [7] [9] [12] SCSI ID (2) [7] [9] [12] Notes [ ]: See page following Table 17.
  • Page 88 Table 17: LC 80-pin single-ended (LVD) I/O connector pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Connector contact Signal name [1] number [3] 12 V CHARGE 12 V 12 V 12 V NC [10] NC [10] –DB11...
  • Page 89 Table 17: LC 80-pin single-ended (LVD) I/O connector pin assignments [11] (Continued) Note. A minus sign preceding a signal name indicates that signal is active low. Connector contact Signal name [1] number [3] NC [10] RMT_START [5] [9] [12] SCSI ID (0) [7] [9] [12] SCSI ID (2) [7] [9] [12] Notes [ ]: See page following this table.

  • Page 90: Electrical Description

    Notes [ ] for Tables 14 through 17. 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. Connector contacts are on 0.050 inch (1.27 mm) centers.

  • Page 91: Figure 27. Typical Se-Lvd Alternative Transmitter Receiver Circuits

    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 = < V Steady state High level input differential voltage = –3.6 V = < V Differential voltage = +0.030 V minimum with common-mode voltage range 0.845 V = <...
  • Page 92 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 ±...

  • Page 93: Terminator Requirements

    Table 20: Example Twist-n-flat cables - into a multi-drive backplane Single- Differential ended Cable impedance, impedance, description nominal nominal TPE, 22.25” twist, 131 ohms 93 ohms 1.75” flat, (24” flat to flat), 30 AWG solid tinned copper TPE, 8.1” twist, 131 ohms 93 ohms 1.75”...

  • Page 94: Disc Drive Scsi Timing

    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 Target Select Time (no Arbitration) Target Select Time (with Arbitration) Target Select to Command Target Select to MSG Out Identify MSG to Command Command to Status...
  • Page 95 Table 21: Disc drive SCSI timing (Continued) These values are not current Cheetah 10K.7 SCSI values, but are listed for information only. Description Next CDB Byte Access (Byte 8 of 10) Next CDB Byte Access (Byte 9 of 10) Next CDB Byte Access (Byte 10 of 10) Data In Byte Transfer (parameter) Data Out Byte Transfer (parameter) Next Data In Byte Access (parameter)

  • Page 96: Drive Activity Led

    9.11 Drive activity LED The following table provides drive activity LED status. Table 22: Drive activity LED status Spindle status Spinning up with DC power applied Spun down Powered down by removal of DC power Spun up Spun down Spun down Spun down Spun down Spun up...

  • Page 97: Seagate Technology Support Services

    +1-405-324-4770. Seagate Service Centers Presales Support Our Presales Support staff can help you determine which Seagate products are best suited for your specific application or computer system, as well as drive availability and compatibility. Technical Support If you need help installing your drive, consult your system's documentation or contact the dealer's support ser- vices department for assistance specific to your system.
  • Page 98 Data Recovery Services Seagate offers data recovery services for all formats and all brands of storage media. Our Data Recovery Ser- vices labs are currently located in North America. To get a free quick quote or speak with a case management representative, call 1-800-475-0143.
  • Page 99 European support services For presales and technical support in Europe, dial the Seagate Service Center toll-free number for your spe- cific location. If your location is not listed here, dial our presales and technical support call center at +1-405- 324-4714 from 8:00 .
  • Page 100 Monday through Friday, except as noted. If your location is not listed here, direct dial one of our tech- nical support locations. Warranty service is available from 9:00 November through March (Australian Eastern time) Monday through Friday. Seagate Service Centers Call center Toll-free Australia...
  • Page 101 We are interested in your comments and suggestions regarding this publication. Please take a few minutes to participate in our survey at the following URL: http://survey.seagate.com/survey/techpubs.nsf Thank you for your time and comments. Cheetah 10K.7 SCSI Product Manual, Rev. D...
  • Page 102 Cheetah 10K.7 SCSI Product Manual, Rev. D...
  • Page 103 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 AC power 25 access time 12 accessories 10 acoustics 38 activity indicator 80 activity LED 86...
  • Page 104 data transfer rate 12 DC cable and connector 65 DC current 67 DC power 13 DC power carrying conductor 69 DC power connector 64 DC power requirements 25 DC power source 69 dedicated landing zone 8 default 48 default mode parameter 45 default value 59 defect/error management 41 delayed motor start option 25...
  • Page 105 host system malfunction 17 host/drive operational interface 17 hot plug 8 humidity 34 I/O connector 67 identified defect 41 idle condition 31 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...
  • Page 106 SCSI interface data 12 SCSI Interface Product Manual 3 SCSI systems error 43 SCSI systems error consideration 41 SCSI systems error management 43 Seagate support service 45 sector 14 sector interleave 12 sector sizes 12 seek error 17 defined 18...
  • Page 107 Self-Monitoring Analysis and Reporting Technology. See S.M.A.R.T. SE-LVD alternative 81 sequential read operations 15 service life 17 shielding 3 shipping 24 shipping container 34 shock 35 and vibration 35 shock mount 51 signal ground 51 single unit shipping pack 10 single-ended (SE) drivers and receivers 8 single-ended interface circuit 31 software interleave 15...
  • Page 108 Cheetah 10K.7 SCSI Product Manual, Rev. D...
  • Page 110 Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 100260915, Rev. D, Printed in USA...

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