SCSI ID definition hardware
The unique address of a SCSI
device. SCSI IDs range from 0 to 7 for 8-bit SCSI systems, 0 to 15 for 16-bit and 0 to 31 for 32-bit systems. The SCSI adaptor
is usually assigned ID 7. A device's SCSI ID is often set by switches on the device.