Table 41. Front panel LEDs
LEDs Color Descriptions
Ready Green Steady when power is on, flashing with tape
Ready drive or library robotic activity.
Unit Identiîš´cation (UID) Blue when
activated
The UID LEDs are controlled by the user
through the Library>Actions>Turn Identiîš´er
Light On or Off GUI function. The UIDs
on the Operator Panel and base module
back panel are activated and deactivated
together. In addition, UIDs on drives and
expansion module back panels can be
activated separately. The UIDs are helpful for
locating components of the library in a data
center.
Clean Amber On, when a tape drive-cleaning operation is
recommended.
Attention Amber Flashing if the library detected a condition
for which user attention is necessary, but the
library can still complete most operations.
Error Amber On, if an unrecoverable tape drive or library
error occurs. A corresponding error message is
displayed on the LCD screen. User intervention
is required as the library is not capable of
completing some operations.
2. On the back of each module (base and expansion), on the module controller See Figure 64 on page
96 and Table 42 on page 96.
Figure 64. Rear panel
Table 42. Rear panel descriptions
Number Item Comments
1 Power supply 1 Standard on Base Module
Optional on Expansion Module (required
if drives are present)
2 Power supply 2 Optional on Base Module and Expansion Modules
3 Tape drive bays Full high drives take up 2 bays and can only be
installed in the lower two drive bays.
4 Upper Expansion Module connection port
IBM Conîš´dential
96IBM TS4300 Tape Library Machine Type 3555: User's Guide