Removing The Bbwc Cache Module - HP ProLiant DL580 Maintenance And Service Manual

38 HP ProLiant DL580 Generation 3 Server Maintenance and Service Guide
5. Remove the BBWC battery pack.
To replace the component, reverse the removal procedure.

Removing the BBWC cache module

1. Power down the server ("Powering down the server" on page 18).
CAUTION: After the server is powered down, wait 15 seconds and
then check the amber LED before unplugging the cable from the cache
module. If the amber LED blinks after 15 seconds, do not remove the
cable from the cache module. The cache module is backing up data,
and data will be lost if the cable is detached.
IMPORTANT: The battery pack may have a low charge when
installed. In this case, a POST error message is displayed when the
server is powered up, indicating that the battery pack is temporarily
disabled. No action is necessary on your part. The internal circuitry
automatically recharges the batteries and enables the battery pack. This
process may take up to 4 hours. During this time, the cache module will
function properly, but without the performance advantage of the battery
pack.
NOTE: The data protection and the time limit also apply if a power
outage occurs. When power is restored to the system, an initialization
process writes the preserved data to the hard drives.