Seagate ST5660N User manual

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ST5660N

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SCSI Interface Drive

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Installation Guide

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Publication Number: 36269-001, Rev. A, June 1994

Seagate®, Seagate Technology®and the Seagate logo are

registered trademarks of Seagate Technology, Inc. SeaFAX,

SeaFONE, SeaBOARDand SeaTDDare trademarks of

Seagate Technology, Inc. Other product names are registered

trademarks or trademarks of their owners.

Seagate reserves the right to change, without notice, product

offerings or specifications. No part of this publication may be

reproduced in any form without written permission from Seagate

Technology, Inc.

Contents

Read before you begin............................................................ 1

Configuring the drive............................................................... 3

Attaching cables......................................................................7

Mounting the drive................................................................... 8

Physical geometry for non-DOS operating systems ......... 10

CMOS setup for AT systems ................................................10

Low-level formatting..............................................................11

Partitioning.............................................................................11

High-level formatting.............................................................12

Basic troubleshooting ..........................................................13

Advanced troubleshooting...................................................15

Technical support services ..................................................18

Storing and shipping your drive .......................................... 20

Read before you begin...

Application. YourSeagate® drive is designed for IBM and IBM-

compatible personal computers, Sun, Macintosh and other sys-

tems using the SCSI interface.

Turn off the system power before attempting any installation.

Static discharge. Observe the following precautions:

•Keep the drive in its static-shielded bag until you are ready to

complete theinstallation.Donotattachany cablestothedrive

while it is in its static-shielded bag.

•Handle the drive by its edges or frame, and do not touch the

I/O connector pins or the circuit board.

•Before handling any components, put on a grounded wrist

strap, or ground yourself frequently by touching the metal

chassis of a computer that is plugged into a grounded outlet.

•Use antistatic padding on all work surfaces.

•Avoid static-inducing carpeted areas.

Drive handling. The drive is extremely fragile—handle it with

care. Do not attach labels to any part of the drive.

Inspection. After you are familiar with the handling precautions

listed above, inspect the drive. If it appears to be damaged, call

your distributor or dealer immediately.

Warranty. See your authorized Seagate distributor or dealer.

Maintenance and repair. Seagate drivesdo not require mainte-

nance. The head/disc assembly is sealed; if you break the seal,

you voidthe warranty. Seagate customer service centers are the

only facilitiesauthorized to repair Seagate drives. Seagate does

not sanction any third-party repair facilities.

ST5660N Installation Guide, Rev A 1

Shipping. Keep your original box and packing materials for

transporting or shipping your drive. The box has a

Seagate

Approved Package

label. Shipping a drive in a nonapproved

container voids the warranty. Call your authorized Seagate dis-

tributor to purchase additional boxes.

Radio and television interference. This product complies with

ClassBlimitsforradionoiseemissionsfromcomputerequipment

as set out in the radio interference regulations of the Canadian

Department of Communications.

Le présent appareil numérique n′émet pas de bruits radioélectriques

depassant les limites applicable aux appareils numériques de Classe B

prescrites dans le règlement sur le brouillage radioélectrique edicté par

le Ministère des Communications du Canada.

Sicherheitsanleitung

1. Das Gerrät ist ein Einbaugerät, das für eine maximale Umegebung-

stemperatur von 55°C vorgesehen ist.

2. Zur Befestigung des Laufwerks werden 4 Schrauben 6-32 UNC-2A

benötigt. Bei seitlicher Befestigung darf die maximale Länge der

Schrauben im Chassis nicht mehr als 5,08 mm und bei Befestigung

an der Unterseite nicht mehr als 5,08 mm betragen.

3. Als Versorgungsspannugen werden benötigt:

+5V ± 5% 0,65A

+12V ± 5% 0,45A (1,9A fur ca. 10 Sek. fur ±10%)

4. Die Versorgungsspannung muβSELV entsprechen.

5. Alle Arbeitendürfen nurvonausgebildetem Servicepersonaldurchge-

führt werden.

6. Der Einbau des Drives muβden Anforderungen gemäβDIN IEC

950V DC 0805/05.90 entsprechen.

2 ST5660N Installation Guide, Rev A

Configuring the drive

Select the appropriate drive features by installing or removing

jumpers on the drive circuit board shown in Figure 1 on page 4

and according to the instructions in Figure 2 on page 5. Refer to

your host adapter documentation for terminator specifications

and configuration instructions.

1. Setting the SCSI ID. Each device on the bus must have a

unique SCSIID. If you are installing only one drive,use SCSI

ID 0 (no jumper installed). If you install a second drive, you

can use any ID (SCSI ID 1 is recommended). SCSI ID 7 is

usually reserved for the SCSI host adapter. To set the

SCSIID,install jumpers on options jumper blockJ8 asshown

inFigure2onpage5,andleaveallpinsofJ5open.Forspecial

applications, you can use J5 to set the SCSI ID (see Figure 3

on page 6); inthese cases,leavetheSCSIIDpinsofJ8 open.

For details, refer to the

Seagate ST5660N Product Manual

publication number

36245-00x

2. Terminatingresistors.ThedrivesupportsFastSCSItransfer

rates and contains 110 ohm resistors for active termination.

(The drive uses single-ended drivers and receivers.) These

resistors can be enabled or disabled as required.

If you are installingonly one drive, and your system contains

only one initiator (for example, a stand-alone host adapter),

enable active termination by leavingpins 19 and20 of jumper

block J8 open.

If you are installing multiple drives in a daisy-chain, disable

active termination on all drives not at a cable end. Do this for

each intermediate ST5660N drive by installing a jumper on

pins 19 and 20 and on pins 23 and 24 of J8.

ST5660N Installation Guide, Rev A 3

J3. Standard

power connector

1234

J1. Interface

connector

+5V

+5V return

+12V return

+12V

Circuit

board

pin 1

J8.

Options 

jumper block

pin 1 J5.

Auxiliary

selection

for

SCSI ID

Figure 1. Connector and jumper block locations

4 ST5660N Installation Guide, Rev A

SCSI ID 0

SCSI ID 1

SCSI ID 2

SCSI ID 3

SCSI ID 4

SCSI ID 5

Notes:

1. All other pins

are reserved. Do

not use them.

2. Jumpers on

pins 28–30 and

32–34 are

spares; these

pins do not

require jumpers.

SCSI ID 6

SCSI ID 7

Remote LED 

connection

Reserved 

Do not use

Remote start

Parity enable

Terminator 

disable

Power from drive

power connector

Power from 

SCSI bus

Power from drive

power connector

and to SCSI bus

Power to SCSI

bus only

J8. Options jumper block Circuit

board

11

9

7

5

3

13

1

15

17

19

21

33

31

29

27

25

23

Spares

Figure 2. Options jumper settings

ST5660N Installation Guide, Rev A 5

pin 1

J5.

SCSI ID

SCSI ID 0

SCSI ID 1

SCSI ID 2

SCSI ID 3

SCSI ID 4

SCSI ID 5

SCSI ID 6

SCSI ID 7

Circuit board

bottom view

2

4

6

Figure 3. J5. Auxiliary block for SCSI ID

6 ST5660N Installation Guide, Rev A

3. Installingjumpersontheterminatorpowersourcejumper

block. Toselecttheterminationpowersource,installjumpers

for the appropriate case as follows:

•To provide terminator power to the SCSI connector and the

driveterminatorpacks,installjumpersonpins21and23and

on pins 22 and 24 of J8. This is the default case.

•To select the drive power connector as the termination

power source forthe resistor packs, installa jumperon pins

23 and 24 of J8.

•To select the SCSI connector as the termination power

source for theresistor packs, install ajumper onpins 21 and

23 of J8.

•To provide terminatorpowerto theSCSI connector fromthe

drive power connector only, install a jumper on pins 22 and

24 of J8.

Attaching cables

Figure 1on page4 showsconnectorandjumperblocklocations.

1. Turn off the system power and put on a grounded wrist

strap before proceeding.

2. ConnectingaremoteLED.(Optional)ConnectaremoteLED

to pins 9 and 10 of jumper block J8. Pin 9 is ground.

3. Attaching the power cable. Attach a system power cable to

the drive power connector J3.

4. Attaching the 50-pin SCSI interface cable. Attach one end

of the cable to the drive interface connector J1 and the other

end to the interface connector on the host system mother-

ST5660N Installation Guide, Rev A 7

board or the host adapter. If you are installing multipledrives,

use a daisy-chain cable.

Verify that pin 1 of the connector on each end of the interface

cable aligns with pin 1 of its matchingconnector on the drive

and on the host. Pin 1 is usually denoted by a stripe on the

side of the ribbon cable. The location of pin 1 is shown in

Figure 1.

Mounting the drive

You can mount the drive in any orientation. Use the following

guidelines for either bottom mounting or side mounting. Figure 4

on page 9 shows mounting hole locations.

Caution. Use of mounting screws that are too long can damage

the drive. Do not insert a bottom mounting screwmore

than 0.20 inches (6 turns) into the drive frame. Do not

insert a side mounting screw more than 0.20 inches

(6 turns) into the drive frame.

Bottom mounting holes. Use 6-32 UNC-2A screws in four of

the four availablebottom mounting holes as shown in Figure 4.

Side mounting holes. Use 6-32 UNC-2A screws in four of the

six available side mounting holes as shown in Figure 4.

8 ST5660N Installation Guide, Rev A

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