Seagate Cheetah 4LP Installation Manual
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Seagate Cheetah 4LP Installation Manual

Seagate Cheetah 4LP Installation Manual

4lp disc drive
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Cheetah 4LP
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Disc Drive
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ST34501N/W/WC/WD/DC
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Installation Guide

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Summary of Contents for Seagate Cheetah 4LP

  • Page 1: Installation Guide

    • • • • • • • • • • • • • • • • • • • • • • • • • • Cheetah 4LP • • • • • • • • • • • • • • • • • • • • • • • • • •...

  • Page 2: Table Of Contents

    ©1996, 1997 Seagate Technology, Inc. All rights reserved Publication Number: 83329110, Rev. B September 1997 Seagate, Seagate Technology, and the Seagate logo are regis- tered trademarks of Seagate Technology, Inc. Cheetah, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trade- marks or registered trademarks of Seagate Technology, Inc.

  • Page 3: Preface

    Cheetah 4LP Installation Guide, Rev. B Preface This manual contains information for users of the Seagate® Cheetah 4LP SCSI disc drives. It provides support services, per- formance specifications, and initial setup information. Additional information is available in the Cheetah 4LP Product Manual (part number 83329120).

  • Page 4: Electrostatic Discharge Protection

    • Ground yourself to the drive whenever the drive electronics are or will be exposed. Connect yourself to ground with a wrist strap (Seagate part number 12263496). Connection may be made to any grounded metal assembly. As a general rule, remember that you and the drive electronics must all be grounded to avoid potentially damaging static discharges.

  • Page 5: Important Safety Information And Precautions

    Cheetah 4LP Installation Guide, Rev. B Important safety information and precautions Caution. Use forced-air ventilation when bench-testing the drive to ensure proper cooling of drive components. Use proper safety techniques for safe, reliable operation of this unit. The procedures in this manual and labels on the unit contain warnings and cautions that must be carefully read and followed to minimize or eliminate the risk of personal injury.
  • Page 6 UL1950, EN60950, CSA C22.2 950- M89, and VDE0805. Seagate takes all reasonable steps to ensure that its products are certifiable to currently accepted standards. Typical applica- tions of these disc drives include customer packaging and sub- system design.

  • Page 7: Wichtige Sicherheitshinweise

    Cheetah 4LP Installation Guide, Rev. B Wichtige Sicherheitshinweise Vorsicht. Beim Testen des Laufwerks auf dem Prüftisch ist Fremdbelüftung vorzusehen, um eine ausreichende Kühlung der Laufwerkkomponenten sicherzustellen. Verwenden Sie geeignete Sicherheits- um den sicheren, zuver- lässigen Betrieb dieser Einheit zu gewährleisten.
  • Page 8 Cheetah 4LP Installation Guide, Rev. B • Treffen Sie beim Betrieb, bei der Installation oder bei der Entfernung der Einheit angemessene Sicherheitsvorkehrun- gen. • Wenn eine Einheit unter Spannung steht, gehen Sie bei der Fehlerdiagnose besonders vorsichtig vor. Schalten Sie die Einheit aus, bevor Sie mit den Installations-und Entfernung- sarbeiten beginnen.
  • Page 9 Cheetah 4LP Installation Guide, Rev. B digen hat eine Beschädigung der Komponenten und Erlöschen des Garantieanspruchs zur Folge. Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, EN60950, CSA C22.2 950-M89 und VDE0805 vorgesehen.

  • Page 10: Regulatory Agency Compliance

    • Printer • 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-...
  • Page 11 Cheetah 4LP Installation Guide, Rev. B Electromagnetic compliance for the European Union If this model has the CE Marking it complies with the European Union requirements of the Electromagnetic Compatibility Direc- tive 89/336/EEC of 03 May 1989 as amended by Directive 92/ 31/EEC of 28 April 1992 and Directive 93/68/EEC of 22 July 1993.

  • Page 12: Seagate Technical Support Services

    If ® you need additional assistance with your Seagate drive or other Seagate products, use one of the Seagate technical sup- port services listed below. SeaFONE® 1-800-SEAGATE Seagate’s 800 number (1-800-732-4283) allows toll-free access...
  • Page 13 Online technical support for Seagate products is available on CompuServe. To access our technical support forum, type go seagate . This forum provides information similar to that found on SeaBOARD. In addition, you can type questions or browse through previous questions and answers on the forum mes- sages.
  • Page 14 Cheetah 4LP Installation Guide, Rev. B FAX services SeaFAX® You can use a touch-tone telephone to access Seagate’s auto- mated FAX system to receive technical support information by return FAX. This service is available 24 hours daily. Location Phone number...
  • Page 15 Cheetah 4LP Installation Guide, Rev. B Direct-support services Seagate technical support For one-on-one help, you can talk to a technical support special- ist during local business hours. Before calling, note your system configuration and drive model number (ST xxxx ).
  • Page 16 Seagate direct OEM, Distribution, and Systems Integrator cus- tomers should contact their Seagate service representative for warranty information. Other customers should contact their place of purchase. Seagate offers comprehensive customer support for all Seagate drives. These services are available worldwide. Location Phone number FAX number...

  • Page 17: General Description

    In either case, the disc drive must receive adequate cooling (refer to “Providing adequate cooling”) and it must be sufficiently grounded and shielded from emis- sions. The Cheetah 4LP Product Manual (par t number 83329120) contains guidelines for a properly designed enclosure.
  • Page 18 Cheetah 4LP Installation Guide, Rev. B Table 1. Drive characteristics Characteristics of the various drives covered by this manual are given in the following tables. Interface type: SCSI Fast-20 (also called Ultra SCSI Cylinders (user accessable): 6,526 Disk rotation: 10,033 r/min ±0.5% Avg.

  • Page 19: Cheetah 4Lp Installation Guide, Rev. B

    Cheetah 4LP Installation Guide, Rev. B Table 1a. Additional drive characteristics Legend for following table listing other drive characteristics: A = capacity, unformatted, Gbytes B = capacity, formatted, Gbytes C = number of read/write data heads D = max. synchronous SCSI interface transfer rate, Mbytes/sec...
  • Page 20 See the +12V current profile in the Cheetah 4LP Product Man- ual (publication number 83329120). This condition occurs when the Motor Start option is enabled...
  • Page 21 Where multiple units are powered on simultaneously, be sure the peak starting current is available to each device. No terminator power. See 11.7.3.4 in the Cheetah 4LP Prod- uct Manual. Table 3. Dimensions of the drive Height 1.00...

  • Page 22: Initial Setup Information

    Initial setup information The general information beginning on this page applies to all of the Cheetah 4LP drive models. After reading the general infor- mation topics, refer to the appropriate drive-specific section listed below for additional information about configuring and installing your particular model.
  • Page 23 Cheetah 4LP Installation Guide, Rev. B SCSI ID jumpers Each device on the SCSI chain must have a unique SCSI ID. The host system’s SCSI controller usually uses the ID that has the highest priority interrupt in the SCSI I/O system. This is always ID7.
  • Page 24 Cheetah 4LP Installation Guide, Rev. B the case, change the ID so that each device on the SCSI chain has its own unique ID. Also check your system or controller user’s manual to ensure that you have not violated its SCSI ID numbering recommendations.

  • Page 25: Terminator Power

    Cheetah 4LP Installation Guide, Rev. B Internal SCSI cable Internal Internal Controller SCSI device SCSI device Terminate Internal SCSI cable External SCSI cable Internal Internal External External Controller SCSI device SCSI device SCSI device SCSI device Terminate Figure 2. SCSI bus termination...
  • Page 26 Cheetah 4LP Installation Guide, Rev. B Figures 3a, 3b, 3c, and 3d show typical drive connections. The following table lists the maximum cable lengths and number of devices with single-ended I/O circuits allowed on a daisy-chain cable for 5 and 20 Mbytes/sec I/O data transfer rates.
  • Page 27 Cheetah 4LP Installation Guide, Rev. B Figure 3a. 50-pin I/O connection to drive Figure 3b. 68-pin I/O connection to drive...
  • Page 28 Cheetah 4LP Installation Guide, Rev. B “N” Model Drive 2 through X SCSI devices [1] Pin 1 (check your adapter for Pin 1 location) SCSI ID 1 SCSI ID 7 Host Adapter SCSI ID 0 [1] “X” means up to 6 or the maximum allowable number of devices on the SCSI bus.
  • Page 29 Cheetah 4LP Installation Guide, Rev. B “W” Model “WD” Model Drive Drive Note: Do not mix “W” and “WD” model drives on the daisy chain. 2 through X Terminator SCSI devices [1] Pin 1 SCSI ID 1 (check your adapter for Pin 1 location)
  • Page 30 Cheetah 4LP Installation Guide, Rev. B 80-pin SCSI I/O Connector Pin 1 Note. This drive model plugs directly into a backplane connec- tor and therefore uses no cables. Figure 3e. Drive model “WC” or “DC” with single 80-pin I/O and power connector...
  • Page 31 Cheetah 4LP Installation Guide, Rev. B Providing adequate cooling The enclosure design must ensure adequate cooling for the drive. The maximum ambient temperature is 50 C. The drive’s product manual (83329120) describes how to evalu- ate the air-flow design. The evaluation consists of ensuring that the case temperature of certain critical components remains within acceptable limits during drive operation.

  • Page 32: Kühlung Des Systems

    Cheetah 4LP Installation Guide, Rev. B Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf maximal 50 C betragen. Die Produkthandbuch Cheetah 4LP (Dokument 83329120) enthalten Anweisungen zur Beurteilung der Luftstromkonstruk- tion. Die Beurteilung muß sicherstellen, daß sich die Gehäuse- t e m p e r a t u r b e s t i m m t e r k r i t i s c h e r Ko m p o n e n t e n b e i Laufwerkbetrieb innerhalb zugelassener Grenzen hält.
  • Page 33 Cheetah 4LP Installation Guide, Rev. B Above unit Under unit Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Above unit Under unit Note. Air flows in the direction shown or in reverse direction (side to side) Figure 4.

  • Page 34: Installation Des Laufwerkes Und Anschluß Der Kabel

    Cheetah 4LP Installation Guide, Rev. B Mounting the drive and connecting cables Do not touch the connector pins or any components on the con- trol board without observing static-discharge precautions. Always handle the drive by the frame only. The drive may be mounted in any orientation (horizontally, verti- cally, and any combination thereof);...
  • Page 35 Cheetah 4LP Installation Guide, Rev. B Befestigen Sie das Laufwerk mit vier 6-32-UNC-Schrauben am Gehäuse des Host-Systems. Die beiden Seiten des Laufwerkes sind mit jeweils zwei Befestigungslöchern versehen, die Unterseite des Laufwerkes weist vier weitere Befestigungslöcher auf. Gemessen von der Außenfläche des Gehäuses dürfen die Schrauben maximal 3,81 mm in die Befestigungslöcher des...
  • Page 36 Cheetah 4LP Installation Guide, Rev. B defined in IEC 950. Figure 5 provides the pin information for the DC power connector. To connect the DC power cable to the drive, simply insert the cable end into the drive’s DC power connector.
  • Page 37 Cheetah 4LP Installation Guide, Rev. B Note. Signal ground on the power control board (PCB) and the head and disc assembly (HDA) are connected together in this drive and you cannot separate them. The equipment in which you have mounted the drive is connected directly to the HDA and PCB without electrically isolating shock mounts.
  • Page 38 Cheetah 4LP Installation Guide, Rev. B elektromagnetische Strahlung fällt in den Zuständigkeits- bereich des Systemdesigners. Replace the host system’s cover. Setzen Sie das Gehäuseoberteil des Host-Systems wieder auf.
  • Page 39 Cheetah 4LP Installation Guide, Rev. B Notes: .050 in. (1.27mm) minimum clearance Mounting holes three on each side, 6-32 UNC. Max screw length into side of drive 0.15 in. (3.81 mm). Screw tightening torque 6.0 in-lb (.675 NM) max with minimum thread engagement of 0.12 in.
  • Page 40 Boot the system from a system floppy disc or from a previ- ously installed hard disc drive if there is one. Format the disc drive. Cheetah 4LP disc drives are designed to operate with a variety of operating systems. Please refer to your system or SCSI controller manual for information about formatting and setting up the drive.

  • Page 41: N Drives Sectionb

    Cheetah 4LP Installation Guide, Rev. B N drives Setting the SCSI ID jumpers N drives sectionb Use the J6 connector to set the SCSI ID (see Figure 7). To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration.
  • Page 42 Cheetah 4LP Installation Guide, Rev. B N drives Terminating the drive “N” model drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the jumper “TE”...
  • Page 43 Cheetah 4LP Installation Guide, Rev. B N drives Terminator power There are three possible terminator power (TP) configurations for “N” model drives (see Figure 9). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory.
  • Page 44 Cheetah 4LP Installation Guide, Rev. B N drives Other applicable jumper options Several other jumper options are available as illustrated. Pin 1 Pin 2 Reserved Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) Disable the Delay Motor Start option (default).

  • Page 45: W/Wd Drives Section

    Cheetah 4LP Installation Guide, Rev. B W/WD drives Setting the SCSI ID jumpers W/WD drives section Use the J6 jumper block to set the SCSI ID (Figure 11). To change the SCSI ID, install jumpers on the appropriate pins as shown in the illustration.
  • Page 46 Cheetah 4LP Installation Guide, Rev. B W/WD drives 68 Pin SCSI I/O Connector Pin 1 J1A [2][4] Pin 1 J1-DC Power Pin 12 SCSI ID = 0 J1A Pin 1 SCSI ID = 1 SCSI Address A0 SCSI ID = 2...
  • Page 47 Cheetah 4LP Installation Guide, Rev. B W/WD drives Terminating the drive “W” model drives are terminated with permanently mounted IC active terminators. If you install one of these drives and it is not on the end of the SCSI bus, disable the terminators by removing the jumper “TE”...
  • Page 48 Cheetah 4LP Installation Guide, Rev. B W/WD drives Terminator power There are three possible terminator power (TP) configurations for “W” model drives (see Figure 14). You will not normally need to change this option and can leave the drive configured as it was shipped from the factory.
  • Page 49 Cheetah 4LP Installation Guide, Rev. B W/WD drives Other applicable jumper options Other option jumpers are available as illustrated below. Pin 1 Pin 2 Reserved Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) Disable the Delay Motor Start option (default).

  • Page 50: Wc/Dc Drives Section

    Cheetah 4LP Installation Guide, Rev. B WC/DC drives Setting the SCSI ID jumpers WC/DC drives section The SCSI ID for “WC” and “DC” model drives is normally set over the SCSI bus by the host system using connector contacts 39 (ID0), 40 (ID2), 79 (ID1), and 80 (ID3).
  • Page 51 Cheetah 4LP Installation Guide, Rev. B WC/DC drives Applicable jumper options Option jumpers are available as illustrated below. Pin 1 Delay Motor Start option The host system has complete control over motor start functions. Do not install a jumper on these pins.

  • Page 52: All Drives (Led Connections)

    Cheetah 4LP Installation Guide, Rev. B All drives Drive Active indicator All drives (LED connections) The drive Active LED indicator connections are shown below. Jumper Plug (enlarged to show detail) Pin 1 Pin 1 Reserved Activity LED Reserved CATH The shaded pins are shipped with a cover installed.
  • Page 56 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 83329110, Rev. B, Printed in USA...

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