Setting The Scsi Id - Adaptec AHA-2740W Installation Manual

2740w-ig.doc Black 19

Setting the SCSI ID

For each device located on the SCSI bus, a unique SCSI
ID must be assigned. The default value for your host
adapter (which is just another device on the SCSI bus) is
SCSI ID 7.
8-bit SCSI devices can be assigned IDs that range from
0 to 7. 16-bit Wide SCSI devices can be assigned IDs that
range from 0 to 15.
Note:
If any SCSI device is connected to the 50-pin inter-
nal SCSI connector, the host adapter SCSI ID must be
assigned a value that ranges from 0 to 7; SCSI ID 7 is
recommended for the host adapter.
When configuring the SCSI ID, consider the following:
• You only need to change a device's SCSI ID if it con-
flicts with the SCSI ID of another device or another
host adapter (assuming they are on the same SCSI
bus).
• SCSI ID 0 is best reserved for the SCSI hard disk drive
that will be used as your computer's boot device; SCSI
ID 1 is best reserved for a second SCSI hard disk drive.
Setting the SCSI ID
19