Seagate Elite 9 Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elite 23 Disc Drive. . . . . . . . . . . . . . . . .

Elite 23 Product Manual, Rev. A 11.0 ScopeThis manual describes Seagate Technology®, Inc. Elite 23™ disc drives.Elite 23 drives support the small comp

Elite 23 Product Manual, Rev. A 32.0 Applicable standards and reference documentationThe drive is a system peripheral developed to the highest standar

4 Elite 23 Product Manual, Rev. AAustralian C-TickIf this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS3548

Elite 23 Product Manual, Rev. A 53.0 General descriptionElite 23 drives combine magnetoresistive (MR) heads, partial response/maximum likelihood (PRML

6 Elite 23 Product Manual, Rev. AFigure 2. Elite 23 family drive3.1 Standard featuresElite 23 drives have the following standard features:• Integrated

Elite 23 Product Manual, Rev. A 7• Dynamic spindle brake• Active IC terminators enabled by jumper (“N” and “W” models only)• 2,000 Kbyte data buffer.

8 Elite 23 Product Manual, Rev. A3.7 Factory installed accessoriesThe Elite 23 Installation Guide, part number 83329130, is shipped with each standard

Elite 23 Product Manual, Rev. A 94.0 Performance characteristics4.1 Internal drive characteristics (transparent to user)[1] Rounded off values4.2 SCSI

10 Elite 23 Product Manual, Rev. ASynchronous transfer rate for fast SCSI-2:8 bit data bus models 1.25 to 10 Mbytes/sec16 bit data bus models 2.5 to 2

Elite 23 Product Manual, Rev. A 114.3 Start/stop timeDisabling the Motor Start option causes the drive to become ready within 45 seconds after DC powe

12 Elite 23 Product Manual, Rev. ACase B - Read command is received and the first logical block address requested is not in any segment of thecache.1.

Elite 23 Product Manual, Rev. A 13system performance. The max prefetch field (bytes 8 and 9) limits the amount of prefetch. The drive does notuse the

Elite 23 Product Manual, Rev. A 155.0 Reliability specificationsThe following reliability specifications assume correct host/drive operational interfa

16 Elite 23 Product Manual, Rev. A5.1.4 Seek errorsA seek error is defined as a failure of the drive to position the heads to the addressed track. The

Elite 23 Product Manual, Rev. A 175.2.6 S.M.A.R.T.S.M.A.R.T. is an acronym for Self-Monitoring Analysis and Reporting Technology. This technology is i

18 Elite 23 Product Manual, Rev. APredictive failuresS.M.A.R.T. signals predictive failures when the drive is performing unacceptably for a period of

Elite 23 Product Manual, Rev. A 196.0 Physical/electrical specificationsThis section provides information relating to the physical and electrical char

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Elite 23 Disc Drive. . . . . . . . . . . . . . . . .

20 Elite 23 Product Manual, Rev. A[9] Seeking is defined as a third-stroke seek at OD. A command is issued every 20 msec.[10] Read track is defined as

Elite 23 Product Manual, Rev. A 21Note. All times and currents are typical. See Table 2 for maximum current requirements.6.3 Power dissipationST423451

22 Elite 23 Product Manual, Rev. ATable 3: PCB and HDA temperaturesNote.[1] The air-flow pattern with which the temperature guidelines in Column 2 wer

Elite 23 Product Manual, Rev. A 23b. Non-operatingNon-operating temperature should remain between –40° to 158°F (–40° to 70°C) package ambient with am

24 Elite 23 Product Manual, Rev. AFigure 5. Recommended mountingPackage Size Packaged/Product Weight Drop Height<600 cu in (<9,800 cu cm) Any 60

Elite 23 Product Manual, Rev. A 256.4.4.2 Vibrationa. Operating—normalThe drive, as installed for normal operation, complies with the complete specifi

26 Elite 23 Product Manual, Rev. AFigure 6. Mounting configuration dimensions for “N” modelsLJKHGFAE[2]DBC[4][1][3]Inches Millimeters8.0005.7502.8752.

Elite 23 Product Manual, Rev. A 27Figure 7. Mounting configuration dimensions for “W” and “WD” modelsLJKHGFAE[2]DBC[4][1][3]Inches Millimeters8.0005.7

Elite 23 Product Manual, Rev. A 297.0 Defect and error managementThe drive, as delivered, complies with this product manual. The read error rate and s

© 1997 Seagate Technology, Inc. All rights reservedPublication number: 83329140, Rev. AAugust 1997Seagate, Seagate Technology, and the Seagate logo ar

30 Elite 23 Product Manual, Rev. A[1] Setting these retry counts to a value below the default setting could result in degradation of the unrecov-ered

Elite 23 Product Manual, Rev. A 318.0 InstallationThe first thing to do when installing a drive is to set the drive ID (select) on the SCSI bus and se

32 Elite 23 Product Manual, Rev. AFigure 8. ST423451N option select jumper connectorsImmediate spinup (if the Start Command option jumper is disconnec

Elite 23 Product Manual, Rev. A 33[1] J7 used on WD model onlyFigure 9a. ST423451W/WD option select jumper connectorsSCSI ID = 0 (default)J4ASCSI ID

34 Elite 23 Product Manual, Rev. AFigure 9b. ST423451 “WD” model auxillary remote cable ID selectSCSI ID = 0 (default)J7SCSI ID = 1SCSI ID = 2SCSI ID

Elite 23 Product Manual, Rev. A 35Figure 10a. J4A connections for Activity, Fault, and Ready LED indicators for all modelsFigure 10b. J7 auxiliary rem

36 Elite 23 Product Manual, Rev. A8.1.1 Notes for Figures 8 through 10bNotes explaining the functions of the various jumpers on jumper header connecto

Elite 23 Product Manual, Rev. A 378.2 Drive orientationThe balanced rotary arm actuator design of the drive allows it to be mounted in any orientation

38 Elite 23 Product Manual, Rev. A8.4 Drive mountingNo special drive mechanical mounting constraints are applicable to this drive.8.5 GroundingSignal

Elite 23 Product Manual, Rev. A 399.0 Interface requirementsThis section describes Elite 23 interface requirements.9.1 General descriptionThis section

Revision status summary sheetThis manual is volume 1 of a two-volume document with the SCSI interface information in the volume 2SCSI Interface Produc

40 Elite 23 Product Manual, Rev. A9.3 SCSI interface commands supportedTable 6 lists the SCSI interface commands that are supported in the SCSI-2 and

Elite 23 Product Manual, Rev. A 41Mode select (same pages as Mode Sense command, see below)15h Y [2] [3]Mode select (10) 55h YMode sense 1Ah Y [2] [3]

42 Elite 23 Product Manual, Rev. A[1] The drive can format to any even number of bytes per sector from 512 to 4,096.[2] Supports 6-byte and 10-byte ve

Elite 23 Product Manual, Rev. A 439.3.1 Inquiry dataTable 7 following lists the Standard Inquiry command data that the drive returns to the initiator

44 Elite 23 Product Manual, Rev. ASaved values are stored on the disk media using a Mode Select command. Only parameter values that areallowed to be c

Elite 23 Product Manual, Rev. A 45The following tables list the values of the data bytes returned by the drive in response to the Mode Sense com-mand

46 Elite 23 Product Manual, Rev. A[1] Though byte 12, bit 7 is shown as changeable, the FSW function governed by that bit is not implementedby this dr

Elite 23 Product Manual, Rev. A 479.4 SCSI bus conditions and miscellaneous features supportedAsynchronous SCSI bus conditions supported by the drive

48 Elite 23 Product Manual, Rev. A9.5 Synchronous data transferThe data transfer period to be used by the drive and the initiator is established by an

Elite 23 Product Manual, Rev. A 49Figure 12. Physical interface for “N” model drivesFigure 13. Physical interface for “W” and “WD” model drivesPin 1J6

50 Elite 23 Product Manual, Rev. A9.6.2 SCSI interface physical descriptionThe drives may be daisy-chained together or with other compatible SCSI devi

Elite 23 Product Manual, Rev. A 51A stub length of no more than 0.1 meter (0.33 foot) is allowed off the mainline interconnection with any con-nected

52 Elite 23 Product Manual, Rev. AThe drive device connector is a non-shielded 68-conductor connector consisting of two rows of 34 female pinswith adj

Elite 23 Product Manual, Rev. A 53Figure 15. Non-shielded 50-pin SCSI device connectorFigure 16. Non-shielded 68-pin SCSI device connector.100(2.54)2.

54 Elite 23 Product Manual, Rev. ATable 12: Single-ended signal/contact assignments for ST423451N drives*CAUTION: Connector contact 25 must not be con

Elite 23 Product Manual, Rev. A 55Table 13: Single-ended wide cable assignments for ST423451W drivesNotes [ ]: See page following Table 14.Signalname

56 Elite 23 Product Manual, Rev. ATable 14: Wide differential P cable assignments (non-shielded connector) for ST423451WD drivesNote. The minus sign n

Elite 23 Product Manual, Rev. A 57Notes [ ] for Tables 12, 13, and 14:[1] See Section 9.7.1 for detailed electrical characteristics of these signals.[

58 Elite 23 Product Manual, Rev. A9.7 Electrical descriptionST423451N and ST423451W models use single-ended interface signals. These signals must be t

Elite 23 Product Manual, Rev. A 599.7.2 Differential drivers/receiversTypical differential driver and receiver circuits used by ST423451WD drives are

Elite 23 Product Manual, Rev. A vContents1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

60 Elite 23 Product Manual, Rev. ANotes.[1] Positive logic enables transmitter (+5 V = asserted).Negative logic enables receivers (0 V = asserted).[2]

Elite 23 Product Manual, Rev. A 619.8 Terminator requirementsST423451N and ST423451W drivesInternal disc drive I/O termination consists of active circ

62 Elite 23 Product Manual, Rev. A9.10 Disc drive SCSI timingTable 15: Disc drive SCSI timingDescriptionWaveformsymbol [1]Waveformtable [1] Typical ti

Elite 23 Product Manual, Rev. A 63Notes.[1] See the SCSI Interface Product Manual, part number 77738479, Section 4.5.[2] Maximum SCSI asynchronous in

Elite 23 Product Manual, Rev. A 6510.0 Seagate technical support servicesIf you need assistance installing your drive, consult your dealer. Dealers ar

66 Elite 23 Product Manual, Rev. ADirect-support servicesSeagate technical supportFor one-on-one help, you can talk to a technical support specialist

Elite 23 Product Manual, Rev. A 67IndexNumerics12 V current profile 203rd party reserve 41AabortSCSI message 39abort-tagSCSI message 39AC powe

68 Elite 23 Product Manual, Rev. ADC power requirements 19DCRT bit 40dedicated landing zone 5, 6default 36default mode parameter 31default

Elite 23 Product Manual, Rev. A 69humidity 23II/O circuitsdifferential 51single-ended 50IC terminators 7identified defect 29identifySCSI mes

vi Elite 23 Product Manual, Rev. A6.4.5 Air cleanliness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

70 Elite 23 Product Manual, Rev. Anon-shielded cable connectors 50notch and partition page 41Ooperating options 31option jumper 31location 3

Elite 23 Product Manual, Rev. A 71SCSI daisy-chain interface cabling 52SCSI ID 31SCSI interface cable requirements 50SCSI interface commands 4

72 Elite 23 Product Manual, Rev. AWwarranty 16wide data transfer requestSCSI message 39write and verify command 42write buffer command 42write

Seagate Technology, Inc.920 Disc Drive, Scotts Valley, California 95066-4544, USAPublication Number: 83329140, Preliminary Rev. A, Printed in USA

Elite 23 Product Manual, Rev. A viiList of FiguresFigure 1. Elite 23 disc drive (ST423451N drive shown) . . . . . . . . . . . . . . . . . . . . . . .