Spectra Logic 10000 User Manual download pdf (Page 29)

Chapter 3. Preparing the Library

Selecting the Mode of Library Operation

A SCSI library can operate in either single-bus or dual-bus mode.

Note: The following information on single-bus and dual-bus libraries

only applies to SCSI libraries.

For more information on SE/LVD libraries, see Selecting a SCSI Bus

for the Library (SCSI Libraries Only) on page 22.

Single Bus Mode

If you want to use only one host with one SCSI controller, operate the library in either

one of these single-bus configurations:

If the library is the last device on the SCSI bus, connect terminators to the SCSI output

connectors. If the library connects to another SCSI device, connect the SCSI cable from

the output of the library to the next SCSI device. Terminate the SCSI output of the final

device on the SCSI bus.

If you have decided to operate in single-bus mode, the next step is to set the library

SCSI ID. See Setting SCSI IDs on page 36.

Note: If you have a single-ended library with three or four installed

drives, you must operate the library in dual-bus mode. See The

SCSI Bus on page 118 for details on SCSI bus lengths.

Option Settings SCSI Cabling

If you have a

single-ended library

with one to two drives.

Set the rear panel Library SCSI ID

switch to a unique ID.

Set the SCSI Bus 2 ID setting to OFF.

Terminate SCSI Port 1 Out.

Attach host SCSI cable to SCSI Port 1 In.

Ensure that drives are installed in Drive Slots 1 and 2.

If you have a

differential library

(HVD or LVD) with three

to four drives.

Set the rear panel Library SCSI ID

switch to a unique ID.

Set the SCSI Bus 2 ID setting to OFF.

Use the six-inch external SCSI link (P.N. 4531) to connect

SCSI Port 1 Out to SCSI Port 2 In.

Attach host SCSI cable to SCSI Port 1 In.

Terminate SCSI Port 2 Out or attach a SCSI cable to the

input of another SCSI device.

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Spectra Logic 10000 User Manual Page 29