Scsi Ids - Exabyte X200 Library Installation And Operation Manual

Appendix B
4
Termination
If the library or any of the tape drives is the last device on the SCSI
bus, you must attach a terminator to the appropriate SCSI
connector at the back of the library. For the Exabyte X200, the
terminator configuration must be wide LVD or wide HVD.

SCSI IDs

Each device on a SCSI bus must have a unique ID. The host
computer uses these IDs to identify each device. The SCSI ID also
determines which device has priority when more than one device
is trying to communicate with the host. The lower the ID, the
lower the priority of the device.
Note: The SCSI ID does not depend on physical location. For
The library and tape drives each use one SCSI ID, totalling up to
11 SCSI IDs. Separate IDs allow the library and tape drives to
operate as independent devices, receiving different sets of SCSI
commands from the host.
242
Internal cabling. You must include the amount of internal
cabling in your calculations. See "Determining the cable
length for each bus" on
If you have any other external devices on the bus (not installed
inside your host computer), these devices may have some
amount of internal SCSI cabling as well.
example, the last device on a multi-device SCSI bus can
have a SCSI ID of 2.
page 236 for information.
Exabyte X200