
ST1
1
M/ST11
R
Controller Installation Guide, Rev. E
1
Introduction
This installation guide supports the
Seagate
ST1
1M
MFM and
ST1 1
R
RLL Controllers, ROM Version 2.0 or higher.
The ST1 1 M and ST1 1
R
are 8-bit ST41 2 interface controllers designed
for use in PC XT/AT systems with DOS-based applications. Use with
other than DOS-based systems is beyond the scope of this guide.
Contact your Distributor/Dealer.
.
.
.
The ST1 1 M is designed for use with drives employing MFM data
encoding.
The ST1 1
R
is designed for drives using RLL
(2,7)
data encoding.
Seagate
RLL drives are easily recognized by an
R
after the model
number, e.g.,
ST157R.
Seagate
Technology, Inc. assumes no
liability for installation of an RLL controller with an MFM-certified
drive.
The ST1 1
M/ST1
1
R
have a unique recording format and therefore
require
all
attached drives to be installed by one of the processes
described in this guide before operation.
This guide may be used with
Seagate
Paired Program drives or
as a controller-only installation guide.
Paired Program drives are shipped with a
Seagate
controller. They are
recognized by a
PR
label on the drive top cover. Paired drives are
shipped formatted with a small DOS partition containing the installation
program, INSTALLR, which will low-level format and partition your drive.
You must supply the DOS program. The ST1 1
M/ST1
1
R
can recognize
whether a drive has the Paired Program software loaded, or has been
previously installed.
Paired Program drives with formatted capacities greater than 32 MBytes
have DISK MANAGER partitioning software loaded. This utility has been
customized by
ONTRACK
for
Seagate.
Refer to Section 2.1 for special
instructions on formatting Paired Program drives.
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