Battery Backup Unit (Bbu) Removal/Replacement - HP Surestore Disk Array 12h - And FC60 Advanced User's Manual

Battery Backup Unit (BBU) Removal/Replacement

!
Hot Swappable Component!
If the Fast Write Cache LED is on when the BBU is removed from the enclosure
Note
(or if the BBU fails), write caching will be disabled and the write cache data will
be written to disk. However, if a power outage occurs prior to completing the
cache write to disk, data may be lost. Therefore, make sure the Fast Write
Cache LED is off before replacing the BBU.
Removing the BBU
1. Remove the controller enclosure front cover. See
on page 397.
2. Loosen the four screws (two on each side) on the BBU. See
The BBU weighs approximately 24 pounds so be prepared to support its
C
AUTION
weight when you pull it out of the chassis. The BBU is not as deep as other
modules and disengages the enclosure sooner than you may expect.
3. Grasp the two handles and slide the module out about two inches.
4. Grasp both sides of the module with both hands and slide it out of the enclosure.
Controller Enclosure Modules
400
"Front Cover Removal/Replacement"
Figure 101.