Removal and replacement procedures 52
1.
Power down the server (on page 26).
2. Extend the server from the rack ("Extending the server from the rack" on page 27).
3. Remove the access panel ("Removing the access panel" on page 28).
CAUTION: Disconnect the cable from the cache module only if the battery pack is not being
used to recover data from the server or transfer data to another server.
4. If the existing cache is connected to a battery, observe the BBWC Status LED ("Battery pack LEDs" on
page 80).
o If the LED is blinking every 2 seconds, data is still trapped in the cache. Restore system power,
and repeat the previous steps.
o If the LED is not lit, disconnect the battery cable from the cache.
5. Remove the controller.
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