LSI 21003 - Manual (Page 38)

2-22 Installing the LSI21003
2.3 Setting SCSI IDs
Set each SCSI device and the host adapter to a separate SCSI ID,
0 through 15. SCSI ID 7 is the preset host adapter setting, giving it the
highest priority on the bus. If you plan to boot your computer from a hard
disk drive on the SCSI bus, that drive should have SCSI ID 0, or the
lowest SCSI ID on the bus. Chapter 2 “SCSI BIOS” of the PCI Storage
Device Management System SDMS 4.0 User’s Guide explains how to set
your host adapter ID using the SCSI BIOS Configuration Utility.
Note: Devices on a narrow (8-bit) bus only respond to SCSI IDs
0–7. Also, they will not be able to respond to the host
adapter if the host adapter ID is set higher than 7.
The peripheral device SCSI IDs are usually set with jumpers or with a
switch on the peripheral. Refer to the peripheral manufacturer’s
instructions and to the computer’s users manual to determine the ID of
each device and how to change it. No duplication of SCSI IDs is allowed
on a SCSI bus.
Step 1. Determine the SCSI ID of each device on the SCSI bus, noting
any duplications.
Step 2. Make any necessary changes to the SCSI IDs and record the
IDs for future reference.
Table 2.1 is provided to keep this record.