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Battery-backed write cache battery pack

To remove the component:

  1. Power down the server.
  2. Extend or remove the server from the rack (Extend the server from the rack, Remove the server from the rack).
  3. Remove the access panel.

    CAUTION: To prevent a server malfunction or damage to the equipment, do not add or remove the battery pack while an array capacity expansion, RAID level migration, or stripe size migration is in progress.

    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 is lost if the cable is detached.

  4. Remove the front fan bracket.
  5. Remove the Smart Array 6i cache module.
  6. Remove the BBWC enabler, also known as the battery pack.

    Removing the BBWC enabler

To replace the component, reverse the removal procedure.

IMPORTANT: The battery pack might 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 might take up to four hours. During this time, the cache module functions 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.