Dell TL2000 - Manual (Page 162)

code reader and positional emitter pulse count after the prism detection retry
count is exhausted. If several prisms are missing or damaged or if the accessor
prism sensor/emitter is inoperable, initialization and/or inventory functions can
take a prolonged amount of time to complete due to the lengthy retry recovery
procedure.
If the library is taking an extended amount of time to initialize, to perform an
inventory or even move a cartridge within the library, the magazines prism
integrity should be verified prior to exchanging a library component. This situation
can be noted by the ACTIVITY line on the Operator Panel posting Recovery. Prism
integrity verification can be done by releasing the magazines and inspecting the
cell prisms. Normal initialization or inventory time for a 2U library once the picker
mechanism starts its operation should be approximately 1 to 2 minutes. For a 4U
library, 2 to 3 minutes. A single missing or damaged prism can add 1 to 2 minutes.
If the accessor tray sensor/emitter is inoperable, or several prisms are missing or
damaged, initialization or inventory could exceed 30 minutes or longer. Refer to
Troubleshooting table “Cartridge Movement Problems”.
Procedures for Isolating CRU Problems
Isolating a Power Supply Problem
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3
4
6
2
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Figure 7-1. A 250w power supply with LEDs
7-8 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide