seagate ST3491A, ST3291A, ST3250A, ST3391A Product Manual
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ST3491 Family:
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ST3250A, ST3291A
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ST3391A, ST3491A
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AT Interface Drives
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Installation Guide
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Contents
Read before you begin... . . . . . . . . . . . . . . . . . . . 1
Configuring the drive . . . . . . . . . . . . . . . . . . . . . 2
Attaching cables . . . . . . . . . . . . . . . . . . . . . . . 3
Mounting the drive . . . . . . . . . . . . . . . . . . . . . . 5
Configuring the computer . . . . . . . . . . . . . . . . . . . 5
Low-level formatting . . . . . . . . . . . . . . . . . . . . . 7
Partitioning . . . . . . . . . . . . . . . . . . . . . . . . . . 7
High-level formatting . . . . . . . . . . . . . . . . . . . . . 8
Using the MIRROR utility . . . . . . . . . . . . . . . . . . . 8
Basic troubleshooting . . . . . . . . . . . . . . . . . . . . . 10
Advanced troubleshooting . . . . . . . . . . . . . . . . . . 11
Technical support services . . . . . . . . . . . . . . . . . . 15
Storing and shipping your drive . . . . . . . . . . . . . . . 17
© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 36255-004, Rev. B
April 1994
®
Seagate
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.
, Seagate Technology® and the Seagate logo are
ST3491 Family Installation Guide, Rev. B 1
Read before you begin...
Application. Your Seagate® drive is designed for IBM AT and
compatible personal computers. It uses the ATA interface.
Warning. Turn off the computer before you open the case, touch
any internal components or install the drive.
Static discharge. Observe these precautions to avoid static
electricity, which can damage a drive or computer. Static electricity can be generated by wool or synthetic clothing, carpets and
plastics of any kind including most bags.
• Keep the drive in its static-shielded bag until you are ready to
install it. Do not attach any cables to the drive while it is in its
static-shielded bag.
• Before you handle the drive, 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. Wear a
grounded wrist strap throughout the installation procedure.
• Handle the drive gently and only by its edges or frame. Until
you are ready to install it, place it only on an antistatic surface.
• Do not touch the drive’s connector pins or its printed circuit
board.
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 drives do not require mainte-
nance. The head/disc assembly is sealed; a broken seal voids
the warranty. Seagate customer service centers are the only
facilities authorized to repair Seagate drives. Seagate does not
sanction any third-party repair facilities.
2 ST3491 Family Installation Guide, Rev. B
Configuring the drive
1. Turn the computer off.
2. Remove your computer’s cover.
Caution. Special training or tools may be needed to service
laptop computers. Removing the cover may void
your warranty. Review the terms and conditions of
your warranty before removing the cover.
3. Ground yourself. Wear a grounded wrist strap throughout
this procedure, or frequently touch the metal chassis of a
computer that is plugged into a grounded outlet.
4. Remove the drive from its antistatic bag.
5. Install master/slave jumpers. The master/slave jumper
block, shown in Figure 1 on page 4, accepts 2-mm connectors
and jumpers. Use Seagate part number 13211-001 or equivalent.
One-drive system: Configure the drive for a one-drive system
as shown in Figure 1.
Two-drive system: With two ATA interface drives, you must
designate one drive as the master, or drive 0, and the other
drive as the slave, or drive 1. This can be done in either of two
ways:
•
When using a standard ATA interface cable (that is, you are
not using cable select): configure the drive as a master or a
slave using the options jumper block as shown in Figure 1
on page 4.
•
When using cable select (that is, you have a special cable
supporting this drive selection method, and your computer
and both drives all support cable select): first install a jumper
on pins 3-4 of the options jumper block as shown in Figure
1; then use a drive-select cable as described in step 5 of
“Attaching cables” on page 3 to designate master and slave
drives.
ST3491 Family Installation Guide, Rev. B 3
Attaching cables
Refer to Figure 1 on page 4 for the locations of the connectors.
1. Make sure the computer is off.
2. Put on a grounded wrist strap.
3. Connect the remote LED (optional).
4. Attach the power cable. Attach one of the computer power
cables from the power supply of your computer to the 4-pin
power connector on the drive.
5. Attach the interface cable. (Interface ribbon cable length
must be 18 inches or less.)
Caution. Connector misalignment can damage the computer
and the drive. Ribbon cables are delicate—be careful not to crimp or strain them.
One-drive system using a standard ATA 40-pin interface cable:
Connect one end of the cable to the computer’s host adapter
card or to the hard drive connector located on the motherboard; connect the other end to the 40-pin interface connector.
Align pin 1 on each cable connector with pin 1 on its matching
equipment connector. (Cable lead 1 going to connector pin 1
is often denoted by a colored edge-stripe on the cable; the
stripe will lie adjacent to the 4-pin power connector.)
Two-drive system with a standard ATA 40-pin interface cable:
If you are using a standard 40-pin two-drive ribbon cable, plug
one connector into J1 on each drive and attach the remaining
connector to the host adapter. Align pin 1 on connectors as
described above for a one-drive system.
Two-drive system using interface cable supporting cable select:
If in step 5 on page 2 you followed the instructions for two
drives and cable-select, you must assign master and slave
status to drives by the following method: to make a drive the
Front
4-pin
power connector
8-pin
options jumper block
Front
Cable select
40-pin
AT interface
connector
4
3
2
1
Circuit board
+5V
+5V return
+12V return
+12V
The drive is a master; a
slave is present, but it does
not have a DASP− signal.
Available
2-pin
header
Drive activity
LED
3-pin
power connector
1
2
3
Keyway
Ground
+12V
+5V
The drive is a master;
a slave is present, but
it is not ATA-compatible.
The drive is a slave to an
ATA-compatible master.
The drive is a master;
the slave is either an
ST3491 family drive or
another ATA-compatible
drive, or there is no slave.
21436
587
Factory test (Do not use.)
Circuit
board
4 ST3491 Family Installation Guide, Rev. B
master, attach it to the connector that has the CSEL signal line
connected to pin 28. To make a drive the slave, attach it to
the connector that has pin 28 unconnected (open). Finally,
Figure 1. Jumpers and connectors
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