Long Term Array Storage - HP HPE XP P9500 Manual

NOTE: The disk array generates a SIM when the cache destage batteries are not charged to
at least 50%. The LEDs on the front panel of the cache boards also show the status of the
batteries.

Long term array storage

While connected, the cache destage batteries will completely discharge in two to three weeks
without power applied. If you do not use a P9500 for two weeks or more, contact Hewlett Packard
Enterprise Technical Support to move the batteries to a disk array that is being used, or turn the
disk array on to standby mode for at least 3 hours once every two weeks.
If you store the system for more than two weeks and do not disconnect the cache destage
batteries, when you restart the system, the batteries will need to charge for at least 90 minutes
before the cache will be protected. To prevent the batteries from discharging during long term
storage, contact Hewlett Packard Enterprise Technical Support and ask them to disconnect the
battery jumpers on the cache boards.
Battery backup operations 49