Removal and replacement procedures 45
5.
Remove the cache battery.
6. Disconnect the battery pack.
To replace the component, reverse the removal procedure.
Recovering data from the battery-backed write cache
If the server fails, use the following procedure to recover data temporarily stored in the BBWC.
CAUTION: Before starting this procedure, read the information about protecting against
electrostatic discharge ("Preventing electrostatic discharge" on page 23).
1. Perform one of the following:
o Set up a recovery server station using an identical server model. Do not install any internal drives
or BBWC in this server. (HP recommends this option.)
o Find a server that has enough empty drive bays to accommodate all the drives from the failed
server and that meets all the other requirements for drive and array migration.
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