Seagate BARRACUDA 4LP ST34571N/W/WC/WD/DC Manual

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Barracuda 4LP Family:. . . . . . . . . . . . . . . .

Barracuda 4LP Product Manual, Rev. D 11.0 ScopeThis manual describes the Seagate Technology®, Inc. Barracuda 4LP™ disc drives. Barracuda 4LP drives su

Barracuda 4LP Product Manual, Rev. D 32.0 Applicable standards and reference documentationThe drive has been developed as a system peripheral to the h

4 Barracuda 4LP Product Manual, Rev. DAustralian C-TickIf this model has the C-Tick Marking it complies with the Australia/New Zealand Standard AS/NZS

Barracuda 4LP Product Manual, Rev. D 53.0 General descriptionBarracuda 4LP drives combine magnetoresistive (MR) heads, partial response/maximum likeli

6 Barracuda 4LP Product Manual, Rev. DThe drive’s interface supports multiple initiators, disconnect/reconnect, self-configuring host software, andaut

Barracuda 4LP Product Manual, Rev. D 73.1 Standard featuresThe Barracuda 4LP Family has the following standard features:• Integrated SCSI controller•

8 Barracuda 4LP Product Manual, Rev. D3.5 Unformatted and formatted capacitiesFormatted capacity depends on the number of spare reallocation sectors r

Barracuda 4LP Product Manual, Rev. D 94.0 Performance characteristics4.1 Internal drive characteristics (transparent to user)4.2 SCSI Seek performance

10 Barracuda 4LP Product Manual, Rev. D4.2.2 Format command execution time (minutes) [1]*4.2.3 Generalized performance characteristicsData buffer tran

Barracuda 4LP Product Manual, Rev. D 11Notes for Section 4.2.[1] Execution time measured from receipt of the last Byte of the Command Descriptor Block

12 Barracuda 4LP Product Manual, Rev. DThe following is a simplified description of a read operation with cache operation enabled:Case A - A Read comm

Barracuda 4LP Product Manual, Rev. D 13During a prefetch operation, the drive crosses a cylinder boundary to fetch more data only if the Discontinuity

Barracuda 4LP Product Manual, Rev. D 155.0 Reliability specificationsThe following reliability specifications assume correct host/drive operational in

16 Barracuda 4LP Product Manual, Rev. D5.1.4 Seek errorsA seek error is defined as a failure of the drive to position the heads to the addressed track

Barracuda 4LP Product Manual, Rev. D 175.2.6 Hot plugging Barracuda 4LP disc drivesCaution: Hot-plug drives are not designed for simultaneous power di

18 Barracuda 4LP Product Manual, Rev. DProduct repair and return informationSeagate customer service centers are the only facilities authorized to ser

Barracuda 4LP Product Manual, Rev. D 196.0 Physical/electrical specificationsThis section provides information relating to the physical and electrical

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20 Barracuda 4LP Product Manual, Rev. D6.2.1 Conducted noise immunityNoise is specified as a periodic and random distribution of frequencies covering

Barracuda 4LP Product Manual, Rev. D 216.3 Power dissipationFor drives with single ended interface circuits, typical operating random read power dissi

22 Barracuda 4LP Product Manual, Rev. DFigure 4. Locations of PCB components listed in Table 36.4.2 Relative humidityThe values below assume that no c

Barracuda 4LP Product Manual, Rev. D 236.4.3 Effective altitude (sea level)a. Operating–1,000 to +10,000 feet (–305 to +3,048 meters)b. Non-Operating–

24 Barracuda 4LP Product Manual, Rev. DNote. Use four screws (two per side) when using the mounting holes located on the sides of the drive. SeeSectio

Barracuda 4LP Product Manual, Rev. D 256.4.4.2 Vibrationa. Operating - normalThe drive as installed for normal operation, shall comply with the comple

26 Barracuda 4LP Product Manual, Rev. D6.5 Mechanical specificationsThe following nominal dimensions are exclusive of the decorative front panel acces

Barracuda 4LP Product Manual, Rev. D 27Figure 6b. Mounting configuration dimensions for models “W” and “WD”AFDEL[1][3]BGC[4]InchesABCDEFGHJKLMNPRSTUVW

28 Barracuda 4LP Product Manual, Rev. DFigure 6c. Mounting configuration dimensions for models “WC” and “DC”AFDEL[1][3]GInchesABCDEFGHJKLMNPRSTUVWYZ14

Barracuda 4LP Product Manual, Rev. D 297.0 Defect and error managementThe drive, as delivered, complies with this specification. The read error rate a

© 1998 Seagate Technology, Inc. All rights reservedPublication number: 77767491, Rev. DFebruary 1998Seagate, Seagate Technology, and the Seagate logo

Barracuda 4LP Product Manual, Rev. D 318.0 InstallationThe first thing to do when installing a drive is to set the drive ID (select) on the SCSI bus a

32 Barracuda 4LP Product Manual, Rev. DFigure 7a. Barracuda 4LP family drive ID select header for models “N”Notes for Figures 7a through 7e are in Sec

Barracuda 4LP Product Manual, Rev. D 33Figure 7b. Barracuda 4LP family drive ID select for models “W,” “WC,” “WD,” and “DC”SCSI ID = 0 (default)Jumper

34 Barracuda 4LP Product Manual, Rev. DFigure 7c. Barracuda 4LP family drive ID select header J1-auxiliary for models “W” and “WD”(J1-Auxiliary Pins 1

Barracuda 4LP Product Manual, Rev. D 35Figure 7d. Barracuda 4LP family drive option select header for models “N,” “W,” and “WD”Figure 7e. Barracuda 4L

36 Barracuda 4LP Product Manual, Rev. D8.1.1 Notes for Figures 7a, 7b, 7c, 7d, and 7e.[1] Notes explaining the functions of the various jumpers on jum

Barracuda 4LP Product Manual, Rev. D 37(“X” means the function selection can be made with jumpers on that connector; (“Y” means the signal is availabl

38 Barracuda 4LP Product Manual, Rev. D8.1.2 Function descriptionJ2JumperInstallation Jumper Function DescriptionTE (Applies only to “N” and “W” model

Barracuda 4LP Product Manual, Rev. D 398.2 Drive orientationThe balanced rotary arm actuator design of the drive allows it to be mounted in any orient

Revision status summary sheetNotice.Product Manual 77767491 is Volume 1 of a two Volume document with the SCSI Interface information inthe Volume 2 SC

40 Barracuda 4LP Product Manual, Rev. D8.4 Drive mountingWhen mounting the drive using the bottom holes (x-y plane in Figure 5) care must be taken to

Barracuda 4LP Product Manual, Rev. D 419.0 Interface requirementsThis section describes Barracuda 4LP interface requirements.9.1 General descriptionTh

42 Barracuda 4LP Product Manual, Rev. D9.3 SCSI interface commands supportedTable 6 following lists the SCSI interface commands that are supported in

Barracuda 4LP Product Manual, Rev. D 43Mode sense 1Ah Y [2]Caching parameters page (08h) YControl mode page (0Ah) YDisconnect/reconnect (02h) (DTDC, D

44 Barracuda 4LP Product Manual, Rev. D[1] The drive can format to any even number of bytes per sector from 180 to 4,096[2] Tables 8a and 8b show how

Barracuda 4LP Product Manual, Rev. D 45Table 7 lists the Standard Inquiry command data that the drive should return to the initiator per the format gi

46 Barracuda 4LP Product Manual, Rev. D9.3.2 Mode Sense dataThe Mode Sense command provides a means for the drive to report its operating parameters t

Barracuda 4LP Product Manual, Rev. D 47The following tables list the values of the data bytes returned by the drive in response to the Mode Sense com-

48 Barracuda 4LP Product Manual, Rev. D[1] Though byte 12, bit 7 (A0) is shown as changeable, the FSW function governed by that bit is not imple-mente

Barracuda 4LP Product Manual, Rev. D 49[1] Though byte 12, bit 7 (A0) is shown as changeable, the FSW function governed by that bit is not imple-mente

50 Barracuda 4LP Product Manual, Rev. D[1] Though byte 12, bit 7 (A0) is shown as changeable, the FSW function governed by that bit is not imple-mente

Barracuda 4LP Product Manual, Rev. D 519.4 SCSI bus conditions and miscellaneous features supportedAsynchronous SCSI bus conditions supported by the d

52 Barracuda 4LP Product Manual, Rev. D9.5 Synchronous data transfer9.5.1 Synchronous data transfer periods supportedTable 11 and Section 9.5.2 list S

Barracuda 4LP Product Manual, Rev. D 53Figure 9a. Physical interface for “N” model drivesJ14321Pin1P2P3P4PPower+12V+12V ret+ 5V ret+ 5VPin 1SCSI I/O

54 Barracuda 4LP Product Manual, Rev. DFigure 9b. Model “W” and “WD” drive physical interface (68 pin J1 SCSI I/O connector)Note: See Table 13d and 13

Barracuda 4LP Product Manual, Rev. D 559.6.2 SCSI Interface physical descriptionThe drives may be daisy chained together or with other compatible SCSI

56 Barracuda 4LP Product Manual, Rev. D9.6.3.1 Single-ended I/O circuits (“N” and “W” models)The maximum total cable length allowed with drives having

Barracuda 4LP Product Manual, Rev. D 579.6.4.1 Mating connectors for “N” modelsThe nonshielded cable connector shall be a 50 conductor connector consi

58 Barracuda 4LP Product Manual, Rev. DRecommended mating 80-position PCB mount connectors: Right-Angle to PCB connectorsSeagate P/N: 77678559 Amp US

Barracuda 4LP Product Manual, Rev. D 59Figure 11a. Nonshielded 50 pin SCSI device connector used on “N” models1234.100(2.54)"D" ± .010Typ..0

Barracuda 4LP Product Manual, Rev. D viiContents1.0 Scope . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

60 Barracuda 4LP Product Manual, Rev. DFigure 11b. Nonshielded 68 pin SCSI device connector used on “W” and “WD” models.0787(2.00).519(13.18).315(8.00

Barracuda 4LP Product Manual, Rev. D 61Figure 11c. Nonshielded 80 pin SCSI “SCA-2” connector, used on “WC” and “DC” models7.00(.276)12.70(.500)57.87 ±

62 Barracuda 4LP Product Manual, Rev. DTable 13a: Model “N,” single ended I/O, 50 conductor, signal/contact assignments*CAUTION: Connector contact 25

Barracuda 4LP Product Manual, Rev. D 63Table 13b: “W” models single ended I/O cable 68 conductor signal/contact assignmentsNotes [ ]: See page followi

64 Barracuda 4LP Product Manual, Rev. DTable 13c: “WD” models differential cable 68 conductor signal/pin assignments (Nonshielded connector)[13]Note.

Barracuda 4LP Product Manual, Rev. D 65Table 13d: “WC” models single ended I/O, 80 conductor cable signal/contact assignments Notes [ ]: See page foll

66 Barracuda 4LP Product Manual, Rev. DTable 13e: “DC” differential models, 80 pin I/O connector pin assignments (Nonshielded connector) [13]Notes [ ]

Barracuda 4LP Product Manual, Rev. D 67Notes [ ] for Tables 13a through 13e.[1] See Section 9.7.1 or 9.6.4.2 for detailed electrical characteristics o

68 Barracuda 4LP Product Manual, Rev. D9.7 Electrical description“N” and “W” models use single-ended interface signals. These signals must be terminat

Barracuda 4LP Product Manual, Rev. D 699.7.2 Differential drivers/receiversDifferential drivers and receivers are used by the “WD,” and “DC” models. T

viii Barracuda 4LP Product Manual, Rev. D6.4.3 Effective altitude (sea level). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

70 Barracuda 4LP Product Manual, Rev. DNotes.[1] Positive Logic Enables Transmitter (+5 V = Asserted)Negative Logic Enables Receivers (0 V = Asserted)

Barracuda 4LP Product Manual, Rev. D 719.8 Terminator requirementsInternal disc drive I/O termination (provided only in model “N” and “W” drives singl

72 Barracuda 4LP Product Manual, Rev. D9.10 Disc drive SCSI timingTable 14: Disc drive SCSI timingDescriptionWaveformSymbol [1]WaveformTable [1] Typic

Barracuda 4LP Product Manual, Rev. D 73Notes.[1] See SCSI-2 Interface Manual P/N 77738479 (called Volume 2), Section 4.5[2] Maximum SCSI asynchronous

Barracuda 4LP Product Manual, Rev. D 7510.0 Seagate technical support servicesIf you need assistance installing your drive, consult your dealer. Deale

76 Barracuda 4LP Product Manual, Rev. DDirect-support servicesSeagate technical supportFor one-on-one help, you can talk to a technical support specia

Barracuda 4LP Product Manual, Rev. D 77IndexSymbols+5 and +12 volt supplies 19Numerics50 conductor connector 5750 conductor flat cable 5550 pin

78 Barracuda 4LP Product Manual, Rev. Dcurrent requirements 19current value 46, 47cylinder boundary 13Ddaisy-chain 20, 55, 57, 58, 6

Barracuda 4LP Product Manual, Rev. D 79Fast-20 SCSI 5, 7fault status 15FCC rules and regulations 3field repair 16firmware 46flat ribbon ca

Barracuda 4LP Product Manual, Rev. D ixFiguresFigure 1. Barracuda 4LP family drive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

80 Barracuda 4LP Product Manual, Rev. Dmedium error 16message protocol 52message protocol system 29messagesSCSI interface 41miscellaneous feat

Barracuda 4LP Product Manual, Rev. D 81Rradio interference regulations 3read 11read caching 12read command 11, 12read data 11read error

82 Barracuda 4LP Product Manual, Rev. Dstandards 3start motor command 19start unit command 38start/stop time 11status 29STIR algorithm 7st

Seagate Technology, Inc.920 Disc Drive, Scotts Valley, California 95066-4544, USAPublication Number: 77767491, Rev. D, Printed in USA