Appendix E: Replacement Parts; Battery Unit - Hitachi G800 Hardware Reference Manual

Appendix E: Replacement parts

Part replacement is essential for maintaining the high performance of the system.
Replacing system components is covered by the maintenance service contract.

Battery unit

Battery lifetime
The battery life time is affected by the battery temperature. The battery temperature
changes depending on the intake temperature and height of the storage system, the
configuration, operation of the controller boards and drives, charge-discharge count and
others. The battery lifetime will be three to five years.
Treatment
Use the storage system in a place where the ambient temperature is 86°F (30°C) or less
on average.
Periodic parts replacement is required. For customers with maintenance service
contracts, parts are replaced periodically in keeping with the terms of the contract.
Note: The battery protects the data in the cache memory in an emergency,
such as a sudden power failure. In these cases, follow the normal power
down procedure. If not, the battery might reach its lifespan earlier than
expected and become unusable within three years. When replacing the
battery, follow the given procedure for disposing a used battery.
Replacement period
The battery lifetime (intake temperature is 30 degrees C or less.) in the standard
environment is as shown below.
Hitachi Virtual Storage Platform G800 Hardware Reference Guide
Appendix E: Replacement parts
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