Dell TL2000 - Manual (Page 202)

2. Power ON the replacement library enclosure.
a. If power ON is successful:
1) The replacement library enclosure will power up with the
Ready/Activity LED ( 1 in Figure 10-17 on page 10-17)
2) After power is restored to the replacement library enclosure, the library
will automatically restore the VPD on the replacement library enclosure
from the Library Controller Card. If a “VPD Selection” message is
displayed in the Operator Control Panel, see the “Read Me before
Continuing” section earlier in this procedure to determine how to
respond to the message.
3) Power OFF the replacement library enclosure.
4) Proceed to “Installing Your Drive(s) in the Replacement Library
Enclosure” on page 10-17.
b. If power ON is not successful:
1) The Error LED ( 4 in Figure 10-17 on page 10-17) will turn ON. This
indicates that the Library Controller Card from the defective library is
not functioning properly.
2) Power OFF the replacement library enclosure.
3) Contact Technical Support for further instructions.
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Figure 10-16. Removing a Library Controller Card from the library
10-16 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide