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Seagate ST118273N Installation Manual

Barracuda 18 disc drive
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Barracuda 18
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Disc Drive
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ST118273N/W/WD/LW/WC/LC
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Installation Guide

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  • Page 1: Installation Guide

    • • • • • • • • • • • • • • • • • • • • • • • • • • • • • ST118273N/W/WD/LW/WC/LC • • • • • • • • • • • • • • • • • • • • • • • • • • • • •...

  • Page 2: Table Of Contents

    ©1997, 1998 Seagate Technology, Inc. All rights reserved Publication Number: 77767513, Rev. C June 1998 Seagate, Seagate Technology, and the Seagate logo are regis- tered trademarks of Seagate Technology, Inc. Barracuda, SeaFAX, SeaFONE, SeaBOARD, and SeaTDD are either trade- marks or registered trademarks of Seagate Technology, Inc. or one of its subsidiaries.

  • Page 3: Preface

    Barracuda 18 Installation Guide, Rev. C Preface This manual contains information for users of the Seagate® Barracuda 18 SCSI disc drives. It provides support services, per- formance specifications, and initial setup information. Additional information is available in the Barracuda 18 Product Manual (part number 77767512).

  • Page 4: Important Safety Information And Precautions

    Barracuda 18 Installation Guide, Rev. C • 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 car- rier or tray prior to inserting it into the system.
  • Page 5 As a component, this drive is designed to be installed and oper- ated in accordance with UL1950, EN60950, CAN/CSA C22.2 950-95, 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

    Barracuda 18 Installation Guide, Rev. C through the Seagate Safety Department to assist the subsystem designer. 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 7 Barracuda 18 Installation Guide, Rev. C • 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 Entfernungsar- beiten beginnen.
  • Page 8 Als Teilkomponente ist dieses Laufwerk für die Installation und den Betrieb in Übereinstimmung mit UL 1950, EN60950, CAN/ CSA C22.2 950-95 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: 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 10 Barracuda 18 Installation Guide, Rev. C 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 11: Seagate Technical Support Services

    Barracuda 18 Installation Guide, Rev. C Seagate Technology support services Presales support To determine which Seagate products are best suited for your specific application, contact us about configuration and compati- bility and for current product availability. You can leave a voice message after business hours or send an e-mail message—we...
  • Page 12 SeaNET You can obtain technical information about Seagate products over the Internet from Seagate’s World Wide Web home page (http://www.seagate.com) or Seagate’s ftp server (ftp:// ftp.seagate.com). You can also send e-mail with your questions to DiscSupport@Seagate.com or TapeSupport@Seagate.com.
  • Page 13 Barracuda 18 Installation Guide, Rev. C 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 14 , M–F) Taiwan 886-2-2514-2237 44-1628-894083 (10:00 to 1:00 2:00 to 5:00 , M–F) Please dial 1-800-SEAGATE or 405-936-1234 for the specific product telephone number. (8:00 to 12:15 , 1:30 to 6:00 central time, M–F) SeaTDD™ 405-936-1687 Using a telecommunications device for the deaf (TDD), you can...
  • Page 15 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 16 Barracuda 18 Installation Guide, Rev. C Switzerland 0 800-83 84 11 Turkey 00 800-31 92 91 40 United Kingdom 0 800-783 5177 Location Phone number FAX number Japan 81-3-5462-2904 81-3-5462-2979 1-800-468-3472 405-949-6740 Other Americas (Brazil, Canada, Mexico) 405-949-6706 405-949-6738 Manufacturer’s representatives Brazil MA Informatica 55-21-516-6649...

  • Page 17: General Description

    Barracuda 18 Installation Guide, Rev. C General description Barracuda 18 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 18 Barracuda 18 Installation Guide, Rev. C Table 1. Drive characteristics Interface UltraSCSI [1] Capacity Formatted [2] 18.21 Gbyte [2] Max. data blocks 21EB38Fh Recording Cylinders (user) 7,501 Read/write data heads Access time [3] Average read 7.9 msec Average write 8.7 msec Disk rotation 7,200 r/min Average latency...
  • Page 19 Barracuda 18 Installation Guide, Rev. C Table 2a. DC power requirements (Amps) ST118273N/W/WC Voltage +12V Regulation [5] ±5% ±5%[2] Max. operating current DC [1] 1.15 1.35 Avg. idle current DCX [1] 0.75 Max. starting current (peak DC) [3] (peak AC) [3] —...
  • Page 20 Barracuda 18 Installation Guide, Rev. C Table 2b. DC power requirements (Amps), differential (HVD) ST118273WD Voltage +12V Regulation [5] ±5% ±5%[2] Max. operating current DC [1] 1.23 1.35 Avg. idle current DCX [1] 0.78 Max. starting current (peak DC) [3] 1.23 (peak AC) [3] —...
  • Page 21 Barracuda 18 Installation Guide, Rev. C Table 2c. DC power requirements (Amps), multimode (SE/LVD) ST118273LW/LC Voltage +12V Regulation [5] ±5% ±5%[2] Max. operating current DC [1] 1.35 Avg. idle current DCX [1] 0.75 Max. starting current (peak DC) [3] (peak AC) [3] —...
  • Page 22 Barracuda 18 Installation Guide, Rev. C [5] See “Conducted noise immunity” in the Barracuda 18 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.

  • Page 23: Initial Setup Information

    Barracuda 18 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. Drive models Page ST118273N ST118273W/WD/LW ST118273WC/LC General information The following general information topics are discussed: • SCSI ID jumpers •...
  • Page 24 Barracuda 18 Installation Guide, Rev. C 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 25 Barracuda 18 Installation Guide, Rev. C 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 26: Terminator Power

    Barracuda 18 Installation Guide, Rev. C For information about how to terminate your drive, refer to the appropriate drive-specific section. Internal SCSI cable Internal Internal Controller SCSI device SCSI device Terminate Internal SCSI cable External SCSI cable Internal Internal External External Controller SCSI device...
  • Page 27 Barracuda 18 Installation Guide, Rev. C Figures 3a, 3b, 3c, and 3d show typical drive connections. The following tables list the maximum cable lengths and number of devices allowed on a daisy-chain cable for I/O data transfer rates shown. Table 4a. Cable characteristics for single-ended I/O circuits Maximum distance between terminators (meters) [1] [3]...
  • Page 28 Barracuda 18 Installation Guide, Rev. C Table 4b. Cable characteristics for differential I/O circuits Maximum distance between terminators (meters) [1] [3] Interconnect Fast-5 Fast-10 Fast-20 Fast-40 Point-to-point interconnect (2 devices) 25 [2] Daisy-chain interconnect (up to 16 devices) 12 [4] [1] For environments where all elements of the bus (cables, device inter- faces, environmental noise and other parameters) are controlled to be better than minimally required, it may be possible to extend the...
  • Page 29 Barracuda 18 Installation Guide, Rev. C Figure 3a. Fifty pin I/O connection to drive Figure 3b. Sixty-eight pin connection to drive...
  • Page 30 Barracuda 18 Installation Guide, Rev. C “N” Model Drive SCSI ID X (or last drive) Additional SCSI devices 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 31 Barracuda 18 Installation Guide, Rev. C “LW” or “W” Model “WD” Model Drive Drive [1] SCSI ID X (or last drive) Additional SCSI devices Pin 1 (check your adapter for Pin 1 location) SCSI ID 1 SCSI ID 7 Host Adapter SCSI ID 0 [1] Do not mix “W,”...
  • Page 32 Barracuda 18 Installation Guide, Rev. C Note. This drive model plugs directly into a backplane connec- tor and therefore uses no cables. Figure 3e. Drive model “WC” or “LC” with single 80-pin I/O and power connector...
  • Page 33 Barracuda 18 Installation Guide, Rev. C Providing adequate cooling The enclosure design must ensure adequate cooling for the drive. The maximum ambient air temperature around the drive should not exceed 50°C. However, to achieve maximum reliabil- ity, the ambient temperature should be about 15°C below this value most of the time.

  • Page 34: Kühlung Des Systems

    Barracuda 18 Installation Guide, Rev. C Kühlung des Systems Die Gehäusekonstruktion muß eine ausreichende Kühlung des Laufwerkes gewährleisten. Die Umgebungstemperatur darf max- imal 50°C betragen. Die Produkthandbuch Barracuda 18 (Dokument 77767512) 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 35 Barracuda 18 Installation Guide, Rev. C Above unit Under unit Note. Air flows in the direction shown (front to back) or in reverse direction (back to front) Above unit Note. Air flows in the direction shown or Under unit in reverse direction (side to side) Figure 4.

  • Page 36: Installation Des Laufwerkes Und Anschluß Der Kabel

    Barracuda 18 Installation Guide, Rev. C 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 37 Barracuda 18 Installation Guide, Rev. C 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 38 Barracuda 18 Installation Guide, Rev. C 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. Das Kabel darf nicht gedehnt oder gedrückt werden und es darf den Luftstrom zur Kühlung des Systems nicht behindern.
  • Page 39 Barracuda 18 Installation Guide, Rev. C 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 40 Barracuda 18 Installation Guide, Rev. C 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 41 Barracuda 18 Installation Guide, Rev. C Notes: 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. (3.05 mm).
  • Page 42 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 43: N Drives Section

    Barracuda 18 Installation Guide, Rev. C N drives Setting the SCSI ID jumpers N/ND drives section 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 44 Barracuda 18 Installation Guide, Rev. C 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 45 Barracuda 18 Installation Guide, Rev. C N drives Terminator power There are four 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 46 Barracuda 18 Installation Guide, Rev. C N drives Other applicable jumper options Several other jumper options are available as illustrated. Drive with HDA up, PCB Pin 1 down, viewed Pin 1 from front Reserved Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected) Reserved...

  • Page 47: W/Wd/Lw Drives Section

    Barracuda 18 Installation Guide, Rev. C W/WD/LW 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 48 Barracuda 18 Installation Guide, Rev. C W/WD/LW drives 68 Pin SCSI I/O Drive Connector Ground Pin 1 J1-DC Power Pin 1 Rear 3P2P (default) SCSI ID = 0 SCSI ID = 1 SCSI ID = 2 SCSI ID = 3 SCSI ID = 4 SCSI ID = 5 SCSI ID = 6...
  • Page 49 Barracuda 18 Installation Guide, Rev. C W 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 50 Barracuda 18 Installation Guide, Rev. C W/WD drives Terminator power There are four 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 51 Barracuda 18 Installation Guide, Rev. C W/WD/LW drives Other applicable jumper options Other option jumpers are available as illustrated in Figures 15 and 16. Drive with Pin 1 HDA up, PCB down, viewed Pin 1 from front Reserved Delay Motor Start option (valid only if the Enable Motor Start jumper is not connected)
  • Page 52 Barracuda 18 Installation Guide, Rev. C LW drives Pin 1 A jumper here forces single-ended I/O operation. No jumper allows host to select either (default) single-ended or LVD operation. Term. Power to SCSI Bus (default) Host adapter or other device provides term.

  • Page 53: Wc/Lc Drives Section

    Barracuda 18 Installation Guide, Rev. C WC/LC drives Setting the SCSI ID jumpers WC/DC drives section The SCSI ID for “WC” and “LC” 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 54 Barracuda 18 Installation Guide, Rev. C WC drives Applicable jumper options Option available for all models are selected by jumpers as illus- trated in Figures 17 through 19. Pin 1 Delay Motor Start option The host system has complete control over motor start functions.
  • Page 55 Barracuda 18 Installation Guide, Rev. C LC drives Pin 1 Delay Motor Start option The host system has complete control over (default) 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 56 Barracuda 18 Installation Guide, Rev. C LC drives Pin 1 Single-Ended I/O A jumper here forces single-ended I/O operation. No jumper allows host to select either (default) single-ended or LVD operation. Drive Front J2 Jumper Plug (enlarged to show detail) Figure 19.
  • Page 60 Seagate Technology, Inc. 920 Disc Drive, Scotts Valley, CA 95066-4544, USA Publication Number: 77767513, Rev. C, Printed in USA...

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