Seagate ST336705LW Product Manual
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Seagate ST336705LW Product Manual

Seagate ST336705LW Product Manual

Cheetah 36xl family
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Cheetah 36XL Family:
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ST336705LW/LC
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ST318405LW/LC
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ST39205LW/LC
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Product Manual, Volume 1
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Summary of Contents for Seagate ST336705LW

  • Page 1 ..........ST336705LW/LC .
  • Page 3 ..........ST336705LW/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 trademarks of Seagate Technology LLC or one of its subsidiaries. All other trademarks or registered trademarks are the prop- erty of their respective owners.
  • Page 5 Revision status summary sheet Revision Date Writer/Engineer Sheets Affected Rev. A 12/11/2000 K. Schweiss/B. Reynolds 1/1, v thru ix, 1-83. Notice. Product Manual 75789517 is Volume 1 of a two-volume document with the SCSI interface information in the SCSI Interface Product Manual, Volume 2, part number 75789509. If you need the SCSI interface information, order the SCSI Interface Product Manual, Volume 2, part number 75789509.

  • Page 7: Table Of Contents

    Cheetah 36XL Product Manual, Rev. A Contents Scope ................1 Applicable standards and reference documentation.
  • Page 8 Seagate Technology support services........
  • Page 9 Cheetah 36XL Product Manual, Rev. A List of Figures Figure 1. Cheetah 36XL family drive (ST336705LC shown) ........1 Figure 2.

  • 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. The SCSI Interface Product Manual references information from the documents listed in Section 2.3.
  • Page 12 Cheetah 36XL Product Manual, Rev. A...

  • Page 13: Applicable Standards And Reference Documentation

    Mounting by bottom holes must meet the requirements of Section 8.4. Standards The Cheetah 36XL 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: Reference Documents

    T10/1302D SCSI Parallel Interface (SPI-3) SFF-8046 Specification for 80-pin connector for SCSI disk drives 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...

  • Page 15: General Description

    (Volume 1), which defines the product performance char- acteristics of the Cheetah 36XL family of drives, and the SCSI Interface Product Manual, part number 75789509, which describes the general interface characteristics of this and other families of Seagate SCSI drives.

  • Page 16: Figure 2. Cheetah 36Xl Family Drive

    Cheetah 36XL Product Manual, Rev. A An automatic shipping lock prevents potential damage to the heads and discs that results from movement dur- ing shipping and handling. The shipping lock automatically disengages when power is applied to the drive and the head load process begins.

  • Page 17: Standard Features

    Cheetah 36XL Product Manual, Rev. A Standard features The Cheetah 36XL 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: Formatted Capacities

    Cheetah 36XL Product Manual, Rev. A 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 read capacities data. Total LBAs = read capacity data (shown below) +1.

  • Page 19: Performance Characteristics

    Cheetah 36XL Product Manual, Rev. A Performance characteristics Internal drive characteristics (transparent to user) ST336705 ST318405 ST39205 Drive capacity 36.704 18.352 9.176 GByte (formatted, rounded off values) Read/write heads Bytes/track 241,128 241,128 241,128 Bytes (average, rounded off values) Bytes/surface 4,577.5 4,577.5 4,577.5 Mbytes (unformatted, rounded off values)

  • Page 20: Start/Stop Time

    Cheetah 36XL Product Manual, Rev. A SCSI interface data transfer rates (asynchronous): Maximum instantaneous 8 bit wide 5.0 Mbytes/sec [4] Maximum instantaneous 16 bit wide 10.0 Mbytes/sec [4] Synchronous formatted transfer rates: Ultra2 SCSI Ultra160 SCSI In SCSI Wide (16 bit) 10.0 to 80 Mbytes/sec 10.0 to 160 Mbytes/sec [6] Sustainable data transfer rates:...

  • Page 21: Cache Operation

    Cheetah 36XL Product Manual, Rev. A enabled and disabled independently via the Mode Select command. However, in actual operation the prefetch feature overlaps cache operation somewhat as is noted in Section 4.5.1 and 4.5.2. All default cache and prefetch Mode parameter values (Mode Page 08h) for standard OEM versions of this drive family are given in Tables 7 and 8.

  • Page 22: Prefetch Operation

    Cheetah 36XL Product Manual, Rev. A RCD. When a write command is issued, if RCD=0, the cache is first checked to see if any logical blocks that are to be written are already stored in the cache from a previous read or write command. If there are, the respective cache segments are cleared.
  • Page 23 Cheetah 36XL Product Manual, Rev. A The base cache buffer configuration for desktop or server environments needs to be set correctly by the host system. This involves setting the PM bit in Mode Page 0, Byte 2, as well as the number of cache buffer seg- ments in Mode Page 8, Byte 13.
  • Page 24 Cheetah 36XL Product Manual, Rev. A...

  • Page 25: Reliability Specifications

    Cheetah 36XL Product Manual, Rev. A 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 26: Reliability And Service

    Cheetah 36XL Product Manual, Rev. A error (15h) is reported with a Medium error (3h) or Hardware error (4h) reported in the Sense Key. This is an unrecoverable seek error. Unrecoverable seek errors are classified as failures for MTBF calculations. Refer to the SCSI Interface Product Manual, part number 75789509, for Request Sense information.

  • Page 27: Hot Plugging Cheetah 36Xl Disc Drives

    Case 4 - Current I/O process allowed during insertion or removal, except on the device being changed Seagate Cheetah 36XL 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 28: Drive Self Test (Dst)

    Cheetah 36XL Product Manual, Rev. A The process of measuring off-line attributes and saving data can be forced by the RTZ command. Forcing S.M.A.R.T. will reset the timer so that the next scheduled interrupt will be two hours. The drive can be interrogated by the host to determine the time remaining before the next scheduled measure- ment and data logging process will occur.

  • Page 29: Dst Failure Definition

    DST. It is the responsibility of the host application to determine the “not ready” cause. While not technically part of DST, a Not Ready condition also qualifies the drive to be returned to Seagate as a failed drive.

  • Page 30: 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 31 Cheetah 36XL Product Manual, Rev. A Seagate repair centers may refuse receipt of components improperly packaged or obviously damaged in tran- sit. Contact your Authorized Seagate Distributor to purchase additional boxes. Seagate recommends shipping by an air-ride carrier experienced in handling computer equipment.
  • Page 32 Cheetah 36XL Product Manual, Rev. A...

  • Page 33: Physical/Electrical Specifications

    Cheetah 36XL Product Manual, Rev. A Physical/electrical specifications This section provides information relating to the physical and electrical characteristics of the Cheetah 36XL 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 34: Conducted Noise Immunity

    Cheetah 36XL Product Manual, Rev. A 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 35: Figure 3. Typical St336705 Drive +12 V Current Profile

    Cheetah 36XL Product Manual, Rev. A +12 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds Figure 3. Typical ST336705 drive +12 V current profile +5 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds...

  • Page 36: Figure 5. Typical St39205 Drive +12 V Current Profile

    Cheetah 36XL Product Manual, Rev. A +12 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds Figure 5. Typical ST39205 drive +12 V current profile +5 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds...

  • Page 37: Figure 7. Typicalst318405 Drive +5 V Current Profile

    Cheetah 36XL Product Manual, Rev. A +12 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds Figure 7. TypicalST318405 drive +5 V current profile +5 Volt Current during spindle start – Typical Amperes AC Envelope Nominal (average) DC curve Seconds Figure 8.

  • Page 38: Power Dissipation

    Cheetah 36XL Product Manual, Rev. A Power dissipation ST336705 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 9.6 watts (32.8 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 9.6 watts (32.8 BTUs per hour).

  • Page 39: Figure 10. St318405 Dc Current And Power Vs. Input/Output Operations Per Second

    Cheetah 36XL Product Manual, Rev. A ST318405 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 8.0 watts (27.3 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 8.0 watts (27.3 BTUs per hour).

  • Page 40: Environmental Limits

    Cheetah 36XL Product Manual, Rev. A ST39205 For drives using single-ended interface circuits, typical power dissipation under idle conditions is 7.5 watts (25.6 BTUs per hour). For drives using low voltage differential interface circuits, typical power dissipation under idle conditions is 7.5 watts (25.6 BTUs per hour).

  • Page 41: Relative Humidity

    Location of HDA Temperature Check Point. b. Non-operating –40° to 158°F (–40° to 70°C) package ambient with a maximum gradient of 36°F (20°C) per hour. This specification assumes that the drive is packaged in the shipping container designed by Seagate for use with drive. 6.4.2 Relative humidity The values below assume that no condensation on the drive occurs.

  • Page 42: Effective Altitude (Sea Level)

    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 43: Figure 13. Recommended Mounting

    Cheetah 36XL Product Manual, Rev. A Figure 13. Recommended mounting...

  • Page 44: Vibration

    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 45: Mechanical Specifications

    Cheetah 36XL Product Manual, Rev. A Mechanical specifications The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figures 14 and 15 for detailed mounting configuration dimensions.

  • Page 46: Figure 15. Lc Mounting Configuration Dimensions

    Cheetah 36XL Product Manual, Rev. A Notes: Mounting holes are 6-32 UNC 2B, three -Z- -X- 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 47: Defect And Error Management

    Cheetah 36XL Product Manual, Rev. A 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 48: Scsi Systems Errors

    Cheetah 36XL Product Manual, Rev. A Table 3: 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) 1200 11 (default) 1569 1218 1260...

  • Page 49: 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 50: Figure 16. J6 Jumper Header

    Cheetah 36XL Product Manual, Rev. A 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 51: Figure 17. J5 Jumper Header (On Lw Model Only)

    Cheetah 36XL Product Manual, Rev. A 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 52: Notes For Figures 16, 17, And 18

    Cheetah 36XL Product Manual, Rev. A 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 53: Function Description

    Cheetah 36XL Product Manual, Rev. A 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 54: Drive Orientation

    (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 55: 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 56: Scsi Interface Commands Supported

    Cheetah 36XL Product Manual, Rev. A SCSI interface commands supported Table 5 following lists the SCSI interface commands that are supported by the drive. Cheetah 36XL Family drives can be changed back and forth between SCSI-1, SCSI-2, and SCSI-3 (Ultra160) modes using the Change Definition Command.
  • Page 57 Cheetah 36XL Product Manual, Rev. A Table 5: Commands supported by Cheetah 36XL family drive (Continued) Command Supported by Command name code SCSI-2/3 Mode sense Y [2] Caching parameters page (08h) Control mode page (0Ah) Disconnect/reconnect (02h) Error recovery page (01h) Format page (03h) Information exceptions control page (1Ch) Notch and Partition Page (0Ch)
  • Page 58 Cheetah 36XL Product Manual, Rev. A Table 5: Commands supported by Cheetah 36XL 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 59: Inquiry Vital Product Data

    Cheetah 36XL Product Manual, Rev. A 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 36XL family drive Standard Inquiry data Bytes Data (HEX)
  • Page 60 Cheetah 36XL Product Manual, Rev. A “zero” allows no change. For example, in Table 7 refer to Mode page 01, in the row entitled “CHG”. These are hex numbers representing the changeable values for mode page 01. Note that bytes 04, 05, 06, and 07 are not changeable, because those fields are all zeros.
  • Page 61 Cheetah 36XL Product Manual, Rev. A Table 7: Mode sense data, ST336705 values Bytes 00 01 02 03 04 05 06 07 08 09 10 11 12 14 15 16 17 18 19 20 21 22 23 Mode Sense Data 00 02 00 10 00 00 00 08 04 3D 67 20 00 02 00...
  • Page 62 Cheetah 36XL Product Manual, Rev. A mode), the SCSI firmware is performance optimized for desktop applications. The firmware default condi- tion for the PM bit is set to one for Desktop mode. During the manufacturing process, the Saved value of the PM bit remains set to the firmware default condition (one) for drives with the LW interface.
  • Page 63 Cheetah 36XL Product Manual, Rev. A Table 8: Mode sense data, ST318405 values Bytes 03 04 05 06 07 08 09 10 11 12 14 15 16 17 18 19 20 21 22 23 Mode Sense Data 10 00 00 00 08 02 22 EE 56 00 02 00 Mode <------------------------------Mode Page Headers and Parameter Data Bytes---------------------------->...
  • Page 64 Cheetah 36XL Product Manual, Rev. A mode), the SCSI firmware is performance optimized for desktop applications. The firmware default condi- tion for the PM bit is set to one for Desktop mode. During the manufacturing process, the Saved value of the PM bit remains set to the firmware default condition (one) for drives with the LW interface.
  • Page 65 Cheetah 36XL Product Manual, Rev. A Table 9: Mode sense data, ST39205 values Bytes 03 04 05 06 07 08 09 10 11 12 14 15 16 17 18 19 20 21 22 23 Mode Sense Data 10 00 00 00 08 01 0F 59 C8 00 02 00 Mode <------------------------------Mode Page Headers and Parameter Data Bytes---------------------------->...
  • Page 66 Cheetah 36XL Product Manual, Rev. A mode), the SCSI firmware is performance optimized for desktop applications. The firmware default condi- tion for the PM bit is set to one for Desktop mode. During the manufacturing process, the Saved value of the PM bit remains set to the firmware default condition (one) for drives with the LW interface.

  • Page 67: Scsi Bus Conditions And Miscellaneous Features Supported

    Cheetah 36XL Product Manual, Rev. A 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 68: Synchronous Data Transfer

    DC cable and connector ST336705LW drives receive DC power through a 4 pin connector (see Figure 21 for pin assignment) mounted at the rear of the main PCBA. Recommended part numbers of the mating connector are listed below, but equiv- alent parts may be used.

  • Page 69: Figure 19. Lw Model Drive Physical Interface (68-Pin J1 Scsi I/O Connector)

    Cheetah 36XL Product Manual, Rev. A Power +12V +12V ret + 5V ret + 5V Pin 1 Pin 1 J1-DC Power PCBA J1-DC Power Pin 1P Pin 1 Pin 1 68 Pin SCSI I/O Connector Figure 19. LW model drive physical interface (68-pin J1 SCSI I/O connector) 80 Pin SCSI I/O and Power Connector...

  • Page 70: Scsi Interface Physical Description

    Cheetah 36XL Product Manual, Rev. A 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 X3T10/1302D revision 14, and operate compatibly at the interface with devices that support earlier SCSI-2 and SCSI-3 stan- dards.

  • Page 71: Mating Connectors

    Cheetah 36XL Product Manual, Rev. A 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 72: Figure 21. Scsi Daisy Chain Interface Cabling For Lw Drives

    2-557103-2 787311-2 without polarization 94-0680-02-2 Amp Japan P/N: 5-175475-9 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. “LW” Model Note. Do not mix drives operating...

  • Page 73: Figure 22. Nonshielded 68 Pin Scsi Device Connector Used On Lw Drives

    Cheetah 36XL Product Manual, Rev. A 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 ±...

  • Page 74: Figure 23. Nonshielded 80 Pin Scsi "Sca-2" Connector, Used On Lc Drives

    Cheetah 36XL Product Manual, Rev. A 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 ± 0.15 62.15 (2.447) (±...
  • Page 75 Cheetah 36XL Product Manual, Rev. A Table 13: 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. Connector Connector Signal contact Cable conductor contact Signal name [1] number [3] number [2] number [3]...
  • Page 76 Cheetah 36XL Product Manual, Rev. A Table 14: LW 68-conductor LVD P cable signal/pin assignments [11] Note. A minus sign preceding a signal name indicates that signal is active low. Connector Connector Signal contact Cable conductor contact Signal name [1] number [3] number [2] number [3]...
  • Page 77 Cheetah 36XL Product Manual, Rev. A Table 15: 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 Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE...
  • Page 78 Cheetah 36XL Product Manual, Rev. A Table 16: 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 Signal contact Signal Contact name [1] number [3] number [3] name[1] 12 V CHARGE...

  • Page 79: Electrical Description

    Cheetah 36XL Product Manual, Rev. A 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 80: Figure 24. Lvd Output Signals

    Cheetah 36XL Product Manual, Rev. A Output characteristics Each signal (V ) driven by LVD interface drivers shall have the following output characteristics when measured at the disc drive connector: Steady state Low level output voltage* = –.95 V = < V = <...

  • Page 81: Single-Ended Drivers/Receivers

    Cheetah 36XL Product Manual, Rev. A 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 82: Disc Drive Scsi Timing

    Cheetah 36XL Product Manual, Rev. A 9.10 Disc drive SCSI timing Table 18: Disc drive SCSI timing Waveform Waveform Description symbol [1] table [1] Typical timing <1 µs Target Select Time (no Arbitration) 1.93 µs Target Select Time (with Arbitration) 4.5-1,2 3.77 µs Target Select to Command...

  • Page 83: Drive Activity Remote Led Signal Status

    Cheetah 36XL Product Manual, Rev. A Table 18: Disc drive SCSI timing (Continued) Waveform Waveform Description symbol [1] table [1] Typical timing 0.04 µs Data In Byte Transfer (parameter) 4.5-12 0.04 µs Data Out Byte Transfer (parameter) 4.5-13 0.12 µs Next Data In Byte Access (parameter) 4.5-12 0.12 µs...
  • Page 84 Cheetah 36XL Product Manual, Rev. A...

  • Page 85: Seagate Technology Support Services

    Seagate’s automated FAX delivery system. Using a touch-tone phone, you can obtain technical support information by return 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.

  • Page 86: 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 87 Cheetah 36XL Product Manual, Rev. A 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 88 Cheetah 36XL Product Manual, Rev. A Warranty Service Call Center Toll-free Direct dial Asia/Pacific — +65-485-3595 +65-488-7503 Australia 1800-12-9277 — — Japan — +81-3-5462-2904 +81-3-5462-2979...
  • Page 89 Cheetah 36XL Product Manual, Rev. A Index cabinet cooling 44 Symbols cable 58 cache 10, 11, 12 +5 and +12 volt supplies 23 cache buffer 7 cache miss 11 Numerics cache mode 11 68 conductor connector 61 cache operation 10, 11 68 pin connector 62 cache operation hit 12 80 conductor connector 61...
  • Page 90 Cheetah 36XL Product Manual, Rev. A DC power requirements 23 electromagnetic interference (EMI) 15 DC power source 61 electromagnetic susceptibility 34 dedicated landing zone 5 embedded servo 7 default 42, 43 EMC compliance 3 default mode parameter 39 EMI requirements 3 default value 49, 50 environmental control 34 defect/error management 37...
  • Page 91 Cheetah 36XL Product Manual, Rev. A host system 39 media defect induced error 15 host system malfunction 15 medium error 16 host/drive operational interface 15 message protocol 58 hot plug 7, 17 message protocol system 38 humidity 30, 31 messages SCSI interface 45 miscellaneous features 57 mode page 01 50...
  • Page 92 8 SCSI systems error consideration 37 SCSI systems error management 38 SCSI Ultra160 implementation 50 radio interference regulations 3 SCSI Ultra160 interface 5 read 11 SE 69 read command 11, 12 Seagate support service 39 read data 11 sector 11...
  • Page 93 Cheetah 36XL Product Manual, Rev. A sector interleave 9 gradient 30 sector size 8 non-operating 31 sector sizes 10 regulation 3 seek error 15 See also cooling seek positioning error 15 termination 24 segment 11 terminator enable jumper TE 62 segment number 11 terminator power 71 self-contained 11...
  • Page 96 Seagate Technology LLC 920 Disc Drive, Scotts Valley, California 95066-4544, USA Publication Number: 75789517, Rev. A, Printed in USA...

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