Configuring a SCSI Host Bus Adapter (HBA) is pretty straightforward. Depending on the HBA you will be able to configure the drives with a target ID (TID) of 0-16 (TID 7 is reserved) and Logical Unit Number (LUN) 0-7.
Assuming you are adding less than eight drives, you will want to use the default TID (usually 0). Each drive needs to be assigned a separate LUN. The LUN assignment can be assigned with a jumper on the physical hard drive, or via the OS.
Hope this helps.
This was first published in August 2001