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Seagate ST173404LW Product Manual

Cheetah 73 family
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Cheetah 73 Family:
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ST173404LW/LWV/LC/LCV
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Product Manual, Volume 1
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  • Page 1 ..........ST173404LW/LWV/LC/LCV .
  • Page 3 ..........ST173404LW/LC .
  • Page 4 Seagate, Seagate Technology, and the Seagate logo are registered trademarks of Seagate Technology, LLC. Cheetah, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either trademarks or registered trade- marks of Seagate Technology, LLC, or one of its subsidiaries. All other trademarks or registered trade- marks are the property of their respective owners.
  • Page 5 Revision status summary sheet Revision Date Writer/Engineer Sheets Affected Rev. A 09/22/1999 L. Newman/G. Velaski 1/1, v thru viii, 1-75. Rev. B 03/24/2000 L. Newman/G. Velaski All. Rev. C 06/20/2000 L. Newman/G. Velaski Pages 27 and 51. Rev. D 08/30/2000 K.

  • Page 7: Table Of Contents

    Cheetah 73 Product Manual, Rev. D Contents Scope ................1 Applicable standards and reference documentation.
  • Page 8 Seagate Technology support services........
  • Page 9 Cheetah 73 family drive (ST173404LW shown)........

  • Page 11: Scope

    The SCSI Interface Product Manual (part num- ber 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 73 models is referred to as “the drive”...

  • Page 13: Applicable Standards And Reference Documentation

    Mounting by bottom holes must meet the requirements of Section 8.4. Standards The Cheetah 73 family complies with Seagate standards as noted in the appropriate sections of this Manual and the Seagate SCSI Interface Product Manual. The Cheetah 73 disc drive is a UL recognized component per UL1950, CSA certified to CSA C22.2 No. 950- M89, and VDE certified to VDE 0805 and EN60950.

  • Page 14: Reference Documents

    T10/1302D SPI-3 (SCSI Parallel Interface version 3) SFF-8046 Specification for 80-pin connector Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30190-001 (under 100 lb.) Package Test Specification Seagate P/N 30191-001 (over 100 lb.) 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.

  • Page 15: General Description

    Cheetah 73 family of drives, and the SCSI Interface Product Manual, which describes the general interface characteristics of this and other families of Seagate SCSI drives. The drive’s interface supports multiple initiators, disconnect/reconnect, self-configuring host software, and automatic features that relieve the host from the necessity of knowing the physical characteristics of the targets (logical block addressing is used).

  • Page 16: Figure 2. Cheetah 73 Family Drive

    Cheetah 73 Product Manual, Rev. D Figure 2. Cheetah 73 family drive...

  • Page 17: Standard Features

    Cheetah 73 Product Manual, Rev. D Standard features The Cheetah 73 family has the following standard features: • Integrated Ultra160 SCSI controller • Multimode SCSI drivers and receivers—single-ended (SE) and low voltage differential (LVD) • 16 bit I/O data bus •...

  • Page 18: Unformatted And Formatted Capacities

    Cheetah 73 Product Manual, Rev. D Unformatted and formatted capacities Formatted capacity depends on the number of spare reallocation sectors reserved and the number of bytes per sector. The following table shows the standard OEM model capacities: Formatted data block size 512 bytes/sector [1] Unformatted ST173404...

  • Page 19: Performance Characteristics

    Cheetah 73 Product Manual, Rev. D Performance characteristics Internal drive characteristics (transparent to user) ST173404 Drive capacity 73.4 GByte (formatted, rounded off values) Read/write heads Bytes/track 215,248 Bytes (average, rounded off values) Bytes/surface 3,035 Mbytes (unformatted, rounded off values) Tracks/surface (total) 14,100 Tracks (user accessible) Tracks/inch...

  • Page 20: Start/Stop Time

    Cheetah 73 Product Manual, Rev. D Sector Sizes: Default 512 byte user data blocks Variable 512 to 2,064 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 Negligible...

  • Page 21: Caching Write Data

    Cheetah 73 Product Manual, Rev. D buffer (still segmented with required number of segments) is still used, but only as circular buffer segments dur- ing 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 22: Prefetch Operation

    Cheetah 73 Product Manual, Rev. D Tables 8 show Mode default settings for the drives. 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 can be 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 operation is disabled).

  • Page 23: Reliability Specifications

    Cheetah 73 Product Manual, Rev. D 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 Less than 10 in 10 seeks Read Error Rates [1] Recovered Data...

  • Page 24: Reliability And Service

    Cheetah 73 Product Manual, Rev. D unrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. Refer to the SCSI Interface Product Manual for Request Sense information. Reliability and service You can enhance the reliability of Cheetah 73 disc drives by ensuring that the drive receives adequate cooling. Section 6.0 provides temperature measurements and other information that may be used to enhance the ser- vice life of the drive.

  • Page 25: Service Life

    Case 4 - Current I/O process allowed during insertion or removal, except on the device being changed Seagate Cheetah 73 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.
  • Page 26 Cheetah 73 Product Manual, Rev. D Note. The firmware will monitor specific attributes for degradation over time but cannot predict instantaneous drive failures. Each attribute has been selected to monitor a specific set of failure conditions in the operating performance of the drive, and the thresholds are optimized to minimize “false”...

  • Page 27: Drive Self Test (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 Seagate SCSI Interface Manual, Vol-...

  • Page 28: 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...
  • Page 29 Standard terms and conditions of Purchase for Seagate products. 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.

  • Page 31: Physical/Electrical Specifications

    Cheetah 73 Product Manual, Rev. D Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 73 drive. AC power requirements None. DC power requirements The voltage and current requirements for a single drive are shown in the following table. Values indicated apply at the drive power connector.

  • Page 32: Conducted Noise Immunity

    Cheetah 73 Product Manual, Rev. D 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 con- nector.

  • Page 33: Figure 4. Typical Cheetah 73 Scsi Se Mode +5 V Current Profile

    Cheetah 73 Product Manual, Rev. D +5 Volt Current, SCSI SE, during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds Figure 4. Typical Cheetah 73 SCSI SE mode +5 V current profile +5 Volt Current, SCSI LVD, during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve T3 T4...

  • Page 34: Power Dissipation

    Cheetah 73 Product Manual, Rev. D Power dissipation For drives using single-ended interface circuits, typical power dissipation under idle conditions is 16.1 watts (55 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 16.36 watts (55.8 BTUs per hour).

  • Page 35: Environmental Limits

    Cheetah 73 Product Manual, Rev. D 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).

  • Page 36: Relative Humidity

    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 37: Shock And Vibration

    36 in (914 mm) 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...

  • Page 38: Figure 9. Recommended Mounting

    Cheetah 73 Product Manual, Rev. D Figure 9. Recommended mounting...

  • Page 39: Air Cleanliness

    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 40: Mechanical Specifications

    1.750 .010 44.45 1.625 .020 41.28 1.122 .020 28.50 4.000 .010 101.60 .250 .010 6.35 1.638 .010 41.60 .181 .020 4.60 1.625 .020 41.28 .265 .010 6.73 .315 .040 7.00 .015 0.38 .015 0.38 Figure 10. ST173404LW mounting configuration dimensions...

  • Page 41: Figure 11. St173404Lc Mounting Configuration Dimensions

    Cheetah 73 Product Manual, Rev. D Notes: -Z- -X- 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.

  • Page 43: Defect And Error Management

    Cheetah 73 Product Manual, Rev. D 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 44: Scsi Systems Errors

    Cheetah 73 Product Manual, Rev. D Table 4: Read and write retry count maximum recovery times [1] Read retry Maximum recovery time per Write retry Maximum recovery time per count [1] LBA (cumulative, msec) count LBA (cumulative, msec) 77.6 35.8 89.6 53.7 304.5...

  • Page 45: 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 46: Figure 12. J6 Jumper Header

    Cheetah 73 Product Manual, Rev. D Drive Front Jumper Plug (enlarged to show detail) Pin 1 Reserved A 2 A 1 A 0 SCSI ID = 0 (default) SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6...

  • Page 47: Figure 13. J5 Jumper Header (On Lw And Lwv Models Only)

    Cheetah 73 Product Manual, Rev. D Drive HDA (rear view, PCB facing downward) [1] [2] Pin 1 +5V Ground Pin 1 J1-DC Power 68 Pin SCSI ID = 0 (default) SCSI I/O Connector SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5...

  • Page 48: Notes For Figures 12, 13, And 14

    Cheetah 73 Product Manual, Rev. D Pin 1 Jumper Positions Force single-ended bus mode Delay Motor Start Enable Remote Motor Start Write Protect Parity Disable Reserved Additional notes on these (applies to “LW” model only; Term. Power to SCSI Bus functions in section 8.1.2.

  • Page 49: Function Description

    Cheetah 73 Product Manual, Rev. D 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 50: Drive Orientation

    Cheetah 73 Product Manual, Rev. D 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.

  • Page 51: Drive Mounting

    (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.

  • Page 53: Interface Requirements

    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. 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, part number 75789509.

  • Page 54: Scsi Interface Commands Supported

    Cheetah 73 Product Manual, Rev. D SCSI interface commands supported Table 6 following lists the SCSI interface commands that are supported by the drive. OEM standard drives are shipped set to operate in Ultra160 mode. Table 6: Commands supported by Cheetah 73 family drive Command Supported by Command name...
  • Page 55 Cheetah 73 Product Manual, Rev. D Table 6: Commands supported by Cheetah 73 family drive (Continued) Command Supported by Command name code SCSI-2/3 Control mode page (0Ah) Disconnect/reconnect (02h) Error recovery page (01h) Format page (03h) Information exceptions control page (1Ch) Notch and Partition Page (0Ch) Power condition page (1Ah) Rigid disc drive geometry page (04h)
  • Page 56 Cheetah 73 Product Manual, Rev. D Table 6: Commands supported by Cheetah 73 family drive (Continued) Command Supported by Command name code SCSI-2/3 Supported diagnostics pages (00h) Translate page (40h) Set limits Start unit/stop unit (spindle ceases rotating) (1Ch) Synchronize cache Test unit ready Verify BYTCHK bit...

  • Page 57: Inquiry Vital Product Data

    S# Eight ASCII digits representing the eight digits of the product serial number. Bytes 18 through 26 reflect model of drive. Shown here are hex values for Model ST173404LW. For “LW” models, bytes 24, 25 and 26 are 4C 57 20.

  • Page 58: Mode Sense Data

    Cheetah 73 Product Manual, Rev. D 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.
  • Page 59 Cheetah 73 Product Manual, Rev. D 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 Ultra160 implementation (see the SCSI Interface Product Manual). Definitions: = Default value.

  • Page 60: Scsi Bus Conditions And Miscellaneous Features Supported

    Cheetah 73 Product Manual, Rev. D 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.

  • Page 61: Synchronous Data Transfer

    9.6.1 DC cable and connector ST173404LW/LWV drives receive DC power through a 4 pin connector (see Figure 18 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.

  • Page 62: Figure 16. St173404Lw Drive Physical Interface (68-Pin J1 Scsi I/O Connector)

    J1-DC Power Pin 1P Pin 1A Pin 1 68 Pin SCSI I/O Connector Figure 16. ST173404LW drive physical interface (68-pin J1 SCSI I/O connector) 80-pin SCSI I/O Connector Pin 1 Figure 17. ST173404LC drive physical interface (80-pin J1 SCSI I/O connector)

  • Page 63: Scsi Interface Physical Description

    Cheetah 73 Product Manual, Rev. D 9.6.2 SCSI interface physical description The drive models described by this product manual support the physical interface requirements of the Ultra160 SCSI Parallel Interface-3 (SPI-3) standards as defined in American National Standard document T10/1302D revision 14, and operate compatibly at the interface with devices that support earlier SCSI-2 and SCSI-3 stan- dards.

  • Page 64: Mating Connectors

    Cheetah 73 Product Manual, Rev. D To minimize discontinuances and signal reflections, cables of different impedances should not be used in the same bus. Implementations may require trade-offs in shielding effectiveness, cable length, number of loads and spacing, transfer rates, and cost to achieve satisfactory system operation. If shielded and unshielded cables are mixed within the same SCSI bus, the effect of impedance mismatch must be carefully considered.

  • Page 65: Figure 18. Scsi Daisy Chain Interface Cabling For Lw/Lwv Drives

    Cheetah 73 Product Manual, Rev. D Recommended mating 80-position PCBA mount connectors: Straight-in connector Hot plug version (with ground guide-pin) Seagate P/N: 77678703 Amp US P/N: 2-557103-1 787311-1 with polarization 94-0680-02-1 Amp US P/N: 2-557103-2 787311-2 without polarization 94-0680-02-2 Amp Japan P/N: 5-175475-9...

  • Page 66: Figure 19. Nonshielded 68 Pin Scsi Device Connector Used On Lw/Lwv Drives

    Cheetah 73 Product Manual, Rev. D 3.650 .005 .346 .270 . 1 55 1.650 .3937 .600 .050 .0787 .200 .022 .020 .047 (15.24) .519 (13.18) (5.08) .100 Pos. 1.816 .315 .085 (2.54) (46.13) Pos. Position 1 x 45 chamfer (8.00) (2.16) .315 .010...

  • Page 67: Figure 20. Nonshielded 80 Pin Scsi "Sca-2" Connector, Used On Lc/Lcv Drives

    Cheetah 73 Product Manual, Rev. D 7.00 (.276) 12.70 End View (.500) Grounding Pins 2.15 0.10 2 places 57.87 (2.278) –0.15 + .000 – .006 0.15 M Y M C L of Datum Y –Y– Front View Pin 1 62.15 0.15 (2.447) ( .005)
  • Page 68 Cheetah 73 Product Manual, Rev. D Table 13: LW/LWV 68-conductor single-ended (SE) P cable signal/pin assignments [13] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Connector Signal contact contact Signal name [1] number [3] number [3] name [1] –DB12...
  • Page 69 Cheetah 73 Product Manual, Rev. D Table 14: LW/LWV 68-conductor LVD P cable signal/pin assignments [13] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Connector Signal contact contact Signal name [1] number [3] number [3] name [1] +DB12...
  • Page 70 Cheetah 73 Product Manual, Rev. D Table 15: LC/LCV 80-pin single-ended (SE) I/O connector pin assignments [13] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE...
  • Page 71 Cheetah 73 Product Manual, Rev. D Table 16: LC/LCV 80-pin single-ended (LVD) I/O connector pin assignments [13] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE...

  • Page 72: Electrical Description

    Cheetah 73 Product Manual, Rev. D Notes [ ] for Tables 13 through 16. 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 73: Figure 21. Lvd Output Signals

    Cheetah 73 Product Manual, Rev. D Steady state Low level output voltage* = –.95 V = < V = < –1.55 V (signal negation/logic 0) Steady state High level output voltage* = –.95 V = < V = < 1.55 V (signal assertion/logic 1) Differential voltage = +0.6 V minimum with common-mode voltage ranges 0.700 V = <...

  • Page 74: Terminator Requirements

    Cheetah 73 Product Manual, Rev. D 9.7.1.1 Single-ended drivers/receivers The maximum total cable length allowed with drives using single-ended I/O driver and receiver circuits depends on several factors. Table 17 lists the maximum lengths allowed for different configurations of drive usage.

  • Page 75: Disc Drive Scsi Timing

    Cheetah 73 Product Manual, Rev. D 9.10 Disc drive SCSI timing Table 18: Disc drive SCSI timing Waveform Waveform Description symbol [1] table [1] Typical timing Target Select Time (no Arbitration) <1 s Target Select Time (with Arbitration) 4.5-1,2 1.93 s Target Select to Command 4.5-1 3.77 s...

  • Page 76: Drive Activity Led

    Cheetah 73 Product Manual, Rev. D Table 18: Disc drive SCSI timing (Continued) Waveform Waveform Description symbol [1] table [1] Typical timing Data In Byte Transfer (parameter) 4.5-12 0.04 s Data Out Byte Transfer (parameter) 4.5-13 0.04 s Next Data In Byte Access (parameter) 4.5-12 0.12 s Next Data Out Byte Access (parameter)

  • Page 77: Seagate Technology Support Services

    FAX 24 hours daily. This service is available worldwide. 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. Disc: 1-877-271-3285; Tape: 1-800-626-6637; Server Appliance: 1-800-732-4283.

  • Page 78: 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####).
  • Page 79 Cheetah 73 Product Manual, Rev. D 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 .
  • Page 81 Cheetah 73 Product Manual, Rev. D Index bytes per sector 46 bytes/surface 9 bytes/track 9 Symbols +5 and +12 volt supplies 21 cabinet cooling 40 Numerics cable 51 cache 10 68 conductor connector 54 cache buffer 7 68-pin connector 55 cache miss 11 80 conductor connector 54 cache mode 10...
  • Page 82 Cheetah 73 Product Manual, Rev. D DC cable and connector 51 DC current 53 ECC 13 DC power 10 ECC correction capability 7 DC power carrying conductor 54 electrical characteristics 51 DC power connector 51 electromagnetic compatibility 3 DC power requirements 21 electromagnetic interference (EMI) 13 DC power source 54 electromagnetic susceptibility 29...
  • Page 83 Cheetah 73 Product Manual, Rev. D temperature 25 head and disc assembly. See HDA magnetoresistive heads 5 heat removal 40 mating connector 51 heat source 40 mating flat cable connector 54 high level format 35 maximum current requirements 22 host 12 maximum operating current 21 host adapter 35 maximum starting current 21...
  • Page 84 Cheetah 73 Product Manual, Rev. D operating option 35 prefetch operation 10 operating parameter 48 prefetch segmented cache control 10 operator intervention 13 preventive maintenance 13 option jumper 35 printed circuit board. See PCB option jumper location 35 PRML read channel electronics 5 option select header 51 product data page 47 option select jumper 35...
  • Page 85 SCSI systems error consideration 33 SCSI systems error management 34 technical support services 67 SCSI-1 mode 44 temperature 10 SE 62 ambient 25 Seagate support service 35 case 25 sector 11 gradient 25 sector interleave 9 non-operating 26 sector size 8...
  • Page 86 Cheetah 73 Product Manual, Rev. D write retry count 33 zoned bit recording (ZBR) 7...
  • Page 88 Seagate Technology, LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 83329478, Rev. D, Printed in USA...

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