3. Loosen the three blue captive thumbscrews on the power supply located on
the back panel of the library.
4. Pull on two of the thumbscrews to pull the unit away from the rear panel of
the library, then grasp the top and bottom edge of the power supply and pull
it out of the library.
5. Remove the packaging from the replacement power supply.
6. Grasp the top and bottom edge of the power supply and push it into the
library.
7. Tighten the three blue captive thumbscrews on the power supply located on
the back panel of the library.
8. Connect the power cord to the library, then to the electrical source.
9. Power ON the library using the power button on the front panel.
10. Run the Library Verify test (refer to “Service: Library Verify” on page 5-26).
Replacing a Library Controller Card
Read Me before Continuing
The Library Controller Card contains a copy of the vital product data (VPD) for
your library. The VPD contains your current library configuration. A backup copy
of this VPD is contained within the electronics of the Library Enclosure. When the
Library Controller Card is replaced, the new replacement card should contain zeros
(0’s) in key VPD locations. Upon detection of these zeros, the library will
automatically attempt to write VPD data to the new Library Controller Card from
the backup copy of the VPD contained in the Library Enclosure. In rare
occurrences, the new Library Controller Card may contain valid (non-zero) VPD
data left over from having been installed previously in another library. If this
occurs, the library, which is expecting to see zeros in the VPD area, will instead
detect valid VPD data, and will not know which copy of the VPD is the correct
one. It will detect a “VPD Mismatch” and display on the Operator Control Panel a
a66mi096
Figure 10-9. A power supply being removed from a 2U library
10-8 Dell PowerVault TL2000 Tape Library and TL4000 Tape Library User's Guide
