LSI 21003 - Manual (Page 31)

Detailed Installation Procedure 2-15
Step 3. Chain multiple devices together with shielded external SCSI
cables.
An example of these chained connections is shown in
Figure 2.11 .
Figure 2.11 Multiple External SCSI Devices Chained Together
2.2.4 SCSI Bus Termination
The devices making up the SCSI bus are connected serially (chained
together) with SCSI cables. The first and last physical SCSI devices
connected on the ends of the SCSI bus must have their terminators
active. All other SCSI devices on the bus must have their terminators
removed or disabled. Remember that your LSI21003 is also on the SCSI