
2.4 Terminating the SCSI Bus
The SCSI bus contains all the devices that you connect with SCSI cables. When you connect the first and last physical SCSI devices on the ends of the SCSI bus, you must have termination active. You must remove or disable termination on all other SCSI devices on the same bus.
If you connected only internal SCSI devices on a bus, the host adapter automatically terminates itself. If you connected only external SCSI devices on a bus, the host adapter also terminates automatically. Automatic termination occurs because the host adapter connection is at the end of the SCSI bus. If you connect both internal and external SCSI devices on a bus, the host adapter automatically disables its termination. This occurs because the host adapter is in the middle of the SCSI bus.
2.4.1 LSI20320 Host Adapter Termination
The LSI20320, LSI20320H, LSI20320L, and
2.4.2 LSI21320 Host Adapter Termination
The
Channel B has only one SCSI connector. Channel B termination is always enabled.
2.4.3 LSI22320 Host Adapter Termination
The
Terminating the SCSI Bus |
Copyright © 2002 by LSI Logic Corporation. All rights reserved.