Specifications

A combination of Ampro and DOS utilities are used in the formatting and preparation of
SCSI hard disk drives. Included on the Ampro utilities diskette are utilities for SCSI drive
formatting, parking, and other
SCSI functions.
3.8.1 Hardware Preparation
Both the Little Board/PC and the SCSI device must be configured prior to use. The follow-
ing information describes points to consider when configuring the board and the SCSI device ..
• SCSI Initiator ID -- The Ampro Little Board/PC is the SCSI Initiator in its transactions
with
SCSI Target devices such as hard disk drives. Every SCSI device (Target or Initia-
tor) must have a unique ID, between 0 and 7. Usually, the Ampro Little Board/PC is
set for "7", because this is the highest priority ID, and because the Ampro SCSI/BIOS
performs a SCSI bus Reset function on system powerup or reset when the CPU board's
ID
is 7. Set the Little Board/PC's ID to 7, as described in Chapter 2.
• SCSI Target Device ID and LUN -- Every SCSI Target device must have a SCSI ID,
between
0 and 7, normally set by jumpers or switches on the device. For use as a DOS
boot device, the SCSI drive must be configured as Target ID 0, LUN 0, as dermed in the
SCSI device's technical documentation.
3.8.2 Preparation for DOS Use
Before you can use a hard disk drive connected to the board's SCSI port, it must be properly
connected and jumpered, as indicated above.
In most cases, formatting and other prepara-
tion for use with DOS is a simple process, and can be accomplished as indicated in this sec-
tion. For additional details on the installation and preparation of SCSI disk drives, refer to
the detailed program descriptions in the Appendix of this manual.
The following
is a brief procedure you can use to prepare a SCSI hard disk drive for use with
DOS:
1. "Low Level" Formatting -- The low level format erases all data from the drive and
prepares it for use. In many cases, the low level format function eliminates bad blocks
from
the usable area of the drive, by using spare blocks to replace bad ones. Most
embedded
SCSI drives are factory formatted. However, it is best to perform a low level
format prior to using a drive for the first time. Use the
Ampro SCSIFMT utility (see
Appendix
A) to perform the low level format of the drive. The drive must be SCSI
Common Command Set ("CCS") compatible, to be formatted by the SCSIFMT utility.
2. Drive Partitioning
-- Reboot the system from a floppy diskette in drive A containing the
operating system, and run the
DOS FDISK utility in the manner described in your DOS
documentation. You may be creating one or multiple partitions, depending on the size
of the drive and the partition limitations of the particular
DOS you are using.
3. Final Preparation for System
Access -- Again, reboot the system from a floppy diskette
in drive A. What you do next varies, depending on what operating system you are using.
DR-DOS: Run the DOS "SYS" command, to copy the operating system to the hard disk
drive that you have created in the above steps. Finally, copy anything else you need to
the drive, and then reboot the system
without the floppy diskette in drive A, to verify that
everything has been installed properly.
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