HP Smart Array 6i Controller and 128MB BBWC - Manual (Page 19)

19
Using the Battery-Backed Write Cache
Option
In This Section
Recovering Data from the Battery-Backed Write Cache.............................................................. 19
Replacing the Battery Pack........................................................................................................... 20
Recovering Data from the Battery-Backed Write
Cache
If the server fails, you can recover any data temporarily trapped in the battery-
backed write cache (BBWC) by using the following procedure.
CAUTION: Before starting this procedure, read the
information about protecting against electrostatic discharge
("Electrostatic Discharge" on page
51 ).
1. Either:
−
Set up a recovery server station using an identical server model. Do not
install any internal drives or BBWC in this server. (This is the preferred
option.)
−
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 ("Moving Drives and Arrays" on page
31 ).
2. Power down the failed server. If there is data trapped in the cache module, an
amber LED on the module blinks every 16 seconds.
CAUTION: Do not detach the cable that connects the battery
pack to the memory module. Detaching the cable causes any unsaved
data in the memory module to be lost.
3. Transfer the hard drives from the failed server to the recovery server station.
HP CONFIDENTIAL
File Name: 347914-1.doc Last Saved On: 1/26/04 9:31 AM