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Seagate BARRACUDA 4LP ST32171N/W/WC/WD/DC Installation Manual

Scsi disc drives
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Barracuda 4LP
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Disc Drive
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ST34371N/W/WC/WD/DC
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ST32171N/W/WC/WD/DC
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ST34571N/W/WC/WD/DC
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ST32271N/W/WC/WD/DC
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Installation Guide

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Summary of Contents for Seagate BARRACUDA 4LP ST32171N/W/WC/WD/DC

  • Page 1 • • • • • • • • • • • • • • • • • • • • • • • • • • Barracuda 4LP • • • • • • • • • • • • • • • • • • • • • • • • • • Disc Drive •...

  • Page 2: Table Of Contents

    ©1997 Seagate Technology, Inc. All rights reserved Publication Number: 77767492, Rev. B January 1997 Seagate, Seagate Technology, and the Seagate logo are regis- tered trademarks of Seagate Technology, Inc. Barracuda, SeaFAX, SeaFONE, SeaNET, SeaTDD, and SeaBOARD are either trademarks or registered trademarks of Seagate Technol- ogy, Inc.

  • Page 3: Preface

    Barracuda 4LP Installation Guide, Rev. B Preface This manual contains information for users of the Seagate® Barracuda 4LP SCSI disc drives. It provides support services, performance specifications, and initial setup information. Addi- tional information is available in the Barracuda 4LP Product Manual (part number 77767491).

  • Page 4: Important Safety Information And Precautions

    • Turn off the power before removing or installing the DC power cable. • Do not remove any circuit boards from the drive. • Never use an ohmmeter on any circuit boards. • When installing the drive on a carrier or tray, discharge the carrier or tray prior to inserting it into the system.
  • Page 5 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 6: Wichtige Sicherheitshinweise

    This unit is a component part and as such is not meant to comply with FCC or similar national requirements as a stand-alone unit. Engineering radiated emissions test results are available through the Seagate Safety Department to assist the subsystem designer. Wichtige Sicherheitshinweise Vorsicht.
  • Page 7 Barracuda 4LP Installation Guide, Rev. B Beachten Sie in jedem Fall die folgenden Warn-und Vorsicht- shinweise: • Beachten Sie alle Warn- und Vorsichtshinweise in diesem Handbuch. • Treffen Sie beim Betrieb, bei der Installation oder bei der Entfernung der Einheit angemessene Sicherheitsvorkehrun- gen.
  • Page 8 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. Seagate ist ständig bemüht, die Zulassungsfähigkeit von Seagate-Produkten im Rahmen der gegenwärtig geltenden Standards zu gewährleisten. Zu den typischen Anwendungen dieser Festplattenwerke zählen Systemeinbau durch den...

  • Page 9: European Union Compliance

    • Monitor/Display • Mouse • Printer Although the test system with this Seagate model complies to the directives, we cannot guarantee that all systems will comply. The computer manufacturer or system integrator shall confirm EMC compliance and provide CE Marking for their product.

  • Page 10: 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 at 1-800-SEAGATE (1-800-732-4283) Seagate’s 800 number allows toll-free access to automated self-...
  • Page 11 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 12 Seagate Technology 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 United States England Australia Seagate technical support FAX You can FAX questions or comments to technical support spe- cialists 24 hours daily.
  • Page 13 Barracuda 4LP Installation Guide, Rev. B Before calling, note your system configuration and drive model number (ST xxxx ). There are several technical support phone numbers available for various Seagate products. Location Telephone number United States Please dial 1-800-SEAGATE for the specific product telephone number.

  • Page 14: General Description

    Barracuda 4LP Installation Guide, Rev. B General description Barracuda 4LP SCSI disc drives are high-speed, random-access digital-data storage devices. The drive is a component for installation in an enclosure designed for the drive. This is often a rack within the system or an external enclosure designed to house one or more disc drives or other peripheral units.
  • Page 15 Barracuda 4LP Installation Guide, Rev. B Table 1. Drive characteristics Interface Capacity ST34371 ST32171 ST34571 ST32271 Recording Cylinders (user) Read/write data heads ST32171/ST32271 ST34371/ST34571 Access time [3] Average read Average write Disk rotation Average latency Internal transfer rate (variable with zone) ST32171/ST34371 ST32271/ST34571 Maximum synchronous SCSI transfer rate...
  • Page 16 [2] Standard factory units are formatted 512 data bytes per sector with sparing equivalent to eighty spare sectors per eight cylinder region. Spares are located at the end of each sparing region. [3] Includes controller overhead. Table 2a. DC power requirements (Amps) Voltage Regulation [5] Max.
  • Page 17 Barracuda 4LP Installation Guide, Rev. B Table 2b. DC power requirements (Amps) Voltage Regulation [5] Max. operating current DC3 [1] Avg. idle current DCX [1] Max. starting current (peak DC) DC3 [3] (peak AC) AC3 [3] Delayed motor start (max) DC3 [1][4] Peak operating current Typical DCX [1] [6]...
  • Page 18 [5] See “Conducted noise immunity” in the Barracuda 4LP Prod- uct Manual. The specified voltage tolerance is inclusive of ripple, noise, and transient response. [6] Operating condition is defined as random seek read opera- tions with a block count of 64. General Notes from Tables 2a and 2b.

  • Page 19: Initial Setup Information

    Barracuda 4LP Installation Guide, Rev. B Initial setup information The general information beginning on this page applies to all of the Barracuda 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 20 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. ID0 is lowest priority in an 8-bit I/O system. ID8 is lowest priority in a 16-bit I/O system.
  • Page 21 Barracuda 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 22 For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI device Internal SCSI cable Internal Internal SCSI device SCSI device Figure 2. SCSI bus termination Terminator power You usually will not need to change this option and can normally leave the drive configured as it was shipped from the factory.
  • Page 23 Barracuda 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 <10 and <20 M transfers/sec I/O data transfer rates. Table 4.
  • Page 24 Barracuda 4LP Installation Guide, Rev. B Pin 1 Figure 3a. Fifty pin I/O connection to drive Pin 1 Figure 3b. Sixty-eight pin connection to drive...
  • Page 25 Barracuda 4LP Installation Guide, Rev. B “N” Model Drive SCSI ID X (or last drive) SCSI ID 1 SCSI ID 0 [1] “X” means up to 6 or the maximum allowable number of devices on the SCSI bus. See Table 4 and system documentation. Figure 3c.
  • Page 26 “W” Model Drive [1] SCSI ID X (or last drive) SCSI ID 1 SCSI ID 0 [1] Do not mix “W” and “WD” model drives on the daisy chain. [2] “X” means up to 15 or the maximum allowable number of devices on the SCSI bus.
  • Page 27 Barracuda 4LP Installation Guide, Rev. B 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 28 Barracuda 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 (77767491) 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 29: Kühlung Des Systems

    Barracuda 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 Barracuda 4LP (Dokument 77767491) 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 K o m p o n e n t e n b e i Laufwerkbetrieb innerhalb zugelassener Grenzen hält.
  • Page 30 Note. Air flows in the direction shown (back to front) or in reverse direction (front to back) Hinweis. Luftstrom in der angezeigten Richtung (von vorne nach hinten) oder in umgekehrter Richtung (von hinten nach vorne) Note. Air flows in the direction shown or in reverse direction (side to side) Hinweis.

  • Page 31: Installation Des Laufwerkes Und Anschluß Der Kabel

    Barracuda 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 32 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 Gehüuses hineinragen.
  • Page 33 Barracuda 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. Schließen Sie das SCSI-Kabel an den SCSI-Steckverbinder des Laufwerkes an.
  • Page 34 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 35 Barracuda 4LP Installation Guide, Rev. B tem einbauen. Die daraus u.U. resultierende verstärkte 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 36 Figure 6. Mounting configuration dimensions Barracuda 4LP Installation Guide, Rev. B Notes: [1] 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 37 Note. Seagate is not responsible for lost user data. Turn on DC power. Boot the system from a system floppy disc or from a previ- ously installed hard disc drive if there is one.

  • Page 38: N Drives Section

    N drives Setting the SCSI ID jumpers 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. Drive Front Jumper Plug (enlarged to show detail) SCSI ID = 0 SCSI ID = 1...
  • Page 39 Barracuda 4LP Installation Guide, Rev. B 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 40 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. “N”...
  • Page 41 Barracuda 4LP Installation Guide, Rev. B Other applicable jumper options Several other jumper options are available as illustrated. Drive with HDA up, PCB down, viewed from front Reserved A 2 A 1 A 0 Reserved Remote Shipped with cover installed. Do not remove.

  • Page 42: W/Wd Drives Section

    W/WD drives Setting the SCSI ID jumpers 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. Optional connections to switching cir- cuits in host equipment are provided on J1 auxiliary to set the SCSI ID (see Figure 12).
  • Page 43 Barracuda 4LP Installation Guide, Rev. B 68 Pin SCSI I/O Connector Pin 1 SCSI ID = 0 SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6 SCSI ID = 7 SCSI ID = 8 SCSI ID = 9...
  • Page 44 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” from pins 15 and 16 of connector J2. If you install the drive on the end of the SCSI bus, enable termination by installing a jumper on pins 15 and 16 of connector J2 (see Figure 13).
  • Page 45 Barracuda 4LP Installation Guide, Rev. B 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 46 W/WD drives Other applicable jumper options Other option jumpers are available as illustrated below. Drive with HDA up, PCB down, viewed from front Reserved Reserved Remote Shipped with cover installed. Do not remove. Do not install jumpers on these four positions. Drive Front DC Power Connector...

  • Page 47: Wc/Dc Drives Section

    Barracuda 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). Users need not install jumpers to select SCSI ID.
  • Page 48 WC/DC drives Applicable jumper options Option jumpers are available as illustrated below. Delay Motor Start option The host system has complete control over motor start functions. Do not install a jumper on these pins. Enable Motor Start option The host system has complete control over motor start functions.
  • Page 52 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 77767492, Rev. B, Printed in USA...

This manual is also suitable for:

Barracuda 4lp st32271n/w/wc/wd/dcBarracuda 4lp st34571n/w/wc/wd/dcBarracuda 4lp st34371n/w/wc/wd/dcBarracuda 4lpSt34371nSt34371w ... Show all

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