Installing A Cache Backup Battery - Hitachi AMS 2000 Series Service Manual

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Installing a cache backup battery

1. After removing a backup battery, wait at least 20 seconds before
reinstalling it or replacing it with a new one.
NOTE: If a cache backup battery is inserted without waiting 20 seconds,
it may not recover from the failure. If that happens, unlock the battery and
slide it partway out of the base unit (only far enough to unplug it), wait at
least 20 seconds, and then resinsert the battery into the base unit.
2. Slide the new battery until the lock lever is slightly opened. Close the
lever until you hear the lock button click.
NOTE: Do not install a battery while the power savings feature is spinning
up the disk drives. The backup battery may not recover normally if you
install it during this time. If that happens, check Navigator 2 and wait until
the message I1GZ00 The spin up of disk drives completed is displayed.
Then unlock the battery and slide it partway out of the base unit (only far
enough to unplug it). Wait at least 20 seconds and then resinsert the
battery into the base unit.
3. While the battery is charging, the green Ready LED blinks slowly. Charge
the battery until Ready LED stops blinking and changes to steady ON.
This may take up to 12 hours.
Figure 4-16: Cache Backup Battery
Table 4-11: Cache Backup Battery
Backup battery unit 1. The backup battery is installed on the left side of the
array.
Lock Lever
Cache backup battery unit 0
Replacing parts
Hitachi AMS 2000 Family Storage System Service Guide
Description
4–25