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Table 8–20: Hardware Components Used to Create the Configuration
Shown in Figure 8–18
Callout Number
Description
1
BN38C or BN38D cable
a
2
BN37A cable
b
3
H8861-AA VHDCI trilink connector
4
H8863-AA VHDCI terminator
5
BN21W-0B Y cable
6
H879-AA terminator
7
328215-00X, BN21K, or BN21L cable
c
a
The maximum length of the BN38C (or BN38D) cable on one SCSI bus segment must not exceed 25 meters.
b
The maximum length of the BN37A cable must not exceed 25 meters.
c
The maximum combined length of these cables must not exceed 25 meters.
8.12.2.2.2 Configuring a Base Unit as a Slave to the Expansion Unit
The TL881/TL891 base units are shipped configured as standalone systems.
When they are used in conjunction with the MiniLibrary expansion unit, the
expansion unit must control the robotics of each of the base units. Therefore,
the base units must be configured as slaves to the expansion unit.
After the hardware and cables are installed, but before you power up
the expansion unit in a MiniLibrary system for the first time, you must
reconfigure each of the base units in the system as a slave. The expansion
unit will not have control over the base unit robotics when you power up the
MiniLibrary system, if you do not reconfigure the base unit as a slave.
To reconfigure a TL881/TL891 base unit as a slave to the MiniLibrary
expansion unit, perform the following procedure on each base unit in the
system.
1. Turn on the power switch on the TL881/TL891 base unit to be
reconfigured.
____________________ Note _____________________
Do not power on the expansion unit. Leave it powered off
until all base units have been reconfigured as slaves.
After a series of self-tests have executed, the default screen will be
displayed on the base module control panel:
8–70 Configuring a Shared SCSI Bus for Tape Drive Use