Seagate ST9300 Series User manual

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ST9300 Family:
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ST9300AG, ST9240AG
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ST9150AG
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AT Interface Drives
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Installation Guide
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© 1994 Seagate Technology, Inc. All rights reserved
Publication Number: 36271-001, 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 . . . . . . . . . . . . . . . . . . . . 2
Attaching cables . . . . . . . . . . . . . . . . . . . . . . . 2
Mounting the drive . . . . . . . . . . . . . . . . . . . . . 4
Configuring your computer . . . . . . . . . . . . . . . . . 5
Formatting and partitioning the drive . . . . . . . . . . . 7
Installation troubleshooting . . . . . . . . . . . . . . . . 9
Compatibility notes . . . . . . . . . . . . . . . . . . . . 15
Technical support services . . . . . . . . . . . . . . . . 16
Shipping and storing your drive . . . . . . . . . . . . . 19

Read before you begin ...
Application. Your drive is designed for IBM AT and compatible
personal computers, particularly laptop and notebook models.
Warning. Turn off the computer(and, if you have a notebook or
laptopcomputer,removethebattery)beforeyouopen
the case or touch any internal components.
Caution. Special training or tools may be needed to service
laptop and notebook computers. Opening the case
may void your warranty. Review the terms and condi-
tions of your warranty before opening the case.
Static discharge. Observe the following precautions:
•Beforehandlinganycomponents,putonagroundedwriststrap.
•Use antistatic padding on all work surfaces.
•Avoid static-inducing carpeted areas.
•Keep the drivein its static-shielded bag until you are ready to
completetheinstallation.Donotattachanycables tothedrive
while it is in its static-shielded bag.
•Handle the drive by its edges or frame.
•Do not touch the I/O connector pins or the 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 main-
tenance.Thehead/discassemblyissealed;ifyoubreaktheseal,
ST9300 Family Installation Guide, Rev. A 1

you voidthe warranty. Seagate customer servicecenters are the
only facilities authorized to repair Seagate drives. Seagate does
not sanction any third-party repair facilities.
Configuring the drive
1. Put on a grounded wrist strap. Wear the grounded wrist
strap throughout the installation procedure.
2. Install master/slave jumpers. In a two-drive system, you
need to designate one drive as the master, or drive 0, and
the other drive as the slave, or drive 1. To do this, install the
master/slave jumpers as shown in Figure 1. In a one-drive
system, configure the drive as a master (no jumpers in-
stalled).
Alternatively, you can configure the drive as a master or
slave using the cable select option. This requires a special
daisy-chain cable that grounds pin 28 (CSEL) on one of its
two drive connectors. If youattach the drivetothegrounded
CSEL connector, it becomes a master. If you attach the
drive to the ungrounded CSEL connector, it becomes a
slave. To use this option, the host system and both drives
must support cable select.
To configure an ST9300 family drive for cable select, install
both master/slave jumpers.
Attaching cables
This drive is designed for a host computer that supplies
interface signals and +5V power through a single 44-pin
connector and cable. If your computer has a fixed connector
that attaches directly to the drive, skip ahead to the following
2 ST9300 Family Installation Guide, Rev. A

Master/slave
configuration
jumpers
Pin 1 Pin 20 removed
for keying Circuit board
B D
A C
Drive is master; slave may be detected using DASP– signal
Drive is master; Seagate slave drive present
Drive is slave; Seagate master drive present
Use CSEL pin grounding to differentiate master from slave
Figure 1. ATA interface connector and master/slave
configuration jumpers
ST9300 Family Installation Guide, Rev. A 3

section, “Mounting the drive.” Otherwise, perform the following
steps:
1. Turn off the computer and remove the battery.
2. Put on a grounded wrist strap.
3. Open the case of your computer. See your system manual
for instructions.
Caution. Openingthecasemayvoidyourcomputer’s warranty.
4. Connect the 44-pin interface/power cable. Match pin 1 of
the cableto pin 1 of the interface connectors on the drive and
on the computer. Pin 1 is usually denoted by a stripe along
one edge of the cable. The location of pin 1 on the drive
interface connector is shownin Figure 1 on page 3. The cable
should be no longer than 18 inches (0.457 meters).
Caution. The printed circuit cables used in some laptop com-
puters are delicate. Be careful not to tear them.
Mounting the drive
Mount the drive securely in the computer using M3X0.5 metric
screws in the four bottom mounting holes or the four side
mounting holes. You can mount the drive in any orientation. Be
careful not to strain or crimp the interface/power cable.
Caution. To prevent damage to the drive:
•Be careful not to bend the drive connector pins, especially
when plugging the drive into a fixed connector.
•Use mounting screws of the correct size and length.
•Gently tighten the mounting screws—do not apply more than
3 inch-pounds of torque.
•Do not insert mounting screws more than 0.15 inch.
4 ST9300 Family Installation Guide, Rev. A

Note. This drive meets industry-standard MCC mounting speci-
fications. When installing this drive in a fixed-mounting
application, you must use MCC-compatible connectors
and mounting hardware. If the mounting holes in your
computer do not line up with the mounting holes on the
drive, your computer may not be MCC-compatible.
Configuring your computer
Before your computer can recognizeanewdrive,you must enter
basic information about the drive into the computer’s long-term
memory (usually a battery-powered CMOS chip). The com-
puter’s basic input/output system (BIOS) uses this information to
control the flow of data to and from the drive.
Note. Some newer computers can automatically determine your
drivetypeandconfigurethemselvesappropriatelyatstartup.
Readyoursystemmanualtodeterminewhether thisapplies
to your computer. If so, then skip ahead to the following
section, “Formatting and partitioning the drive,” on page 7.
In most computers, you must enter the number of cylinders,
heads and sectors using the system setup program (see page
6). The table below lists data for the ST9300 family drives.
Drive specification ST9300AG ST9240AG ST9150AG
No. cylinders 569 988 419
No. read/write heads 15 8 13
No. sectors per track 60 52 47
Total no. sectors 512,100 411,008 256,009
Bytes per sector 512 512 512
Capacity (Mbytes)
BIOS calculated 249.9 200.6 124.9
Usable 262.1 210.4 131.0
ST9300 Family Installation Guide, Rev. A 5

To configure your system BIOS, follow these steps:
1. Turn on your computer.
2. Run the system setup program. This program configures
the system BIOS to recognize yourdrive. In some computers
you run the system setup program by pressing special keys
while the computer is booting up. In other computers, youcan
run the program from the DOS prompt. See your system
documentation for more information.
3. Enter your drive specifications. Within the system setup
program, there are three possible ways that you can enter
your drive’s specifications. These are listed below in order of
increasing complexity.
•Select a predefined drive type. Most system setup pro-
grams provide a long list of predefined drive types. Select a
drive type with specifications that match those of your drive
(refer to the table onpage 5).
•Specify a
custom or user-defined drive type. If the
system setup program doesn’t list a predefined drive type
that matches your drive specifications, you may be ableto
define a custom or user-defined drive type. You can then
enter your drive specifications (from the table on page 5).
When you enter drive specifications for a custom or user-
defined drive type, the setup program should display a
drive capacity less than or equal to the
BIOS calculated
capacity
in the table on page5. This value is slightly lower
than the usable drive capacity.
•Allow your drive to emulate or
translate one of the
predefined drive types. If none of the predefined drive
types exactly matches your drive, and your system setup
program doesnot allowyouto specify a custom drivetype,
6 ST9300 Family Installation Guide, Rev. A

your drive may be able to emulate one of the predefined
drive types.
Selectapredefineddrivetypethatmeetsallofthefollowing
requirements:
•
Drive capacity ≤ BIOS calculated capacity *
•
Read/write heads ≤16
•
Sectors per track ≤63
•
Total sectors per drive
≤
(cylinders) × (read/write heads) × (sectors per track)*
* Drive-specific values for drive capacity, cylinders,
read/write heads and sectors per track are listed in the
table on page 5.
If you are not sure which drive type to select, try running
the FINDTYPE.EXE utility program. This program is avail-
able from Seagate’s Technical Support services (on the
SeaBOARD computer bulletin board).
Caution. Write down the drive type that you have selected and
anydrivespecificationsthatyouhaveentered(usethe
Notes page at the end of this manual). Keep this
information in a safe place. You willneed it to retrieve
data from the drive if your CMOS battery fails.
Formatting and partitioning the drive
Caution. Formatting or partitioning a drive that contains data
destroys that data. Make sure all data has been safely
backedupbeforerepartitioningorreformattingadrive.
Seagate Technology assumes no liability forlost data.
ST9300 Family Installation Guide, Rev. A 7

Low-level formatting
SeagateATInterfacedrivesarelow-levelformattedatthefactory
and do not require additional low-level formatting before use.
Partitioning
The partitioning process subdivides a single disc drive into
partitions that behave as separate logical drives (labeled C, D,
E, etc.). You can also set up the entire disc as a single partition.
Note. If you are using a version of DOS prior to Version 4.0, the
operating system cannot access more than 32 Mbytes in
a single partition. Therefore, you must divide a drive with
a capacity of over 32 Mbytes into several smaller parti-
tions. We do not recommend using ST9300 family drives
with DOS versions prior to Version 3.3.
1. Restart your computer. Boot up the computer using a
diskette that contains DOS system files.
2. Run the FDISK program. Insert a DOS program diskette
containing the FDISK program into your diskette drive. At the
DOS prompt, typeFDISK, press ENTER, then followthe direc-
tions on the screen to create one ormorepartitions.Seeyour
DOS manual fordetails. If you arepartitioning a drive thatwill
be used to boot the computer, make sure that the primary
partition is marked active.
High-level formatting
High-level formatting verifies the information written by the low-
levelformat and creates file allocation tablesusedtocatalog and
access files.
1. Run the FORMAT program. Insert a DOS program diskette
containing the FORMAT program into your diskette drive. At
the DOS prompt, type FORMAT, followed by the drive letter
8 ST9300 Family Installation Guide, Rev. A