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Outside service Partner
Hitachi Vantara Knowledge

Maintaining the storage system

Ongoing proper maintenance of the storage system maintains the reliability of the storage system and its constant availability to all hosts connected to it.

For more complex maintenance activities, contact customer support.

Storing the storage system

If the storage system does not receive power for more than six months, the battery can become discharged and possibly damaged. To avoid this situation, charge the battery for more than three hours at least once every six months.

Note Do not store the equipment in an environment with temperatures of 104ºF (40ºC) or higher because battery life will be shortened.

Powering off the storage system

  1. Press the main switch on the controller chassis for approximately three seconds until the POWER LED on the front of the chassis changes from solid green to a blinking status.

  2. Release the main switch and the POWER LED returns to solid green after blinking for approximately three seconds.

    The power-off process begins. The process takes approximately 18 minutes or longer depending on the amount of data that needs to be written. The POWER LED is solid green during the powering off process. The POWER LED changes from green to amber when the process is completed.
  3. Verify the POWER LED on the front of the storage system changes from green to amber.

  4. To stop the power supply, remove the power cables from the power supply units on the controller chassis and drive box.

    If the storage system is connected to a PDU, you can stop the power supply by turning off the PDU breaker.
    NoteIf the storage system does not receive power for more than six months, the battery can become discharged and possibly damaged. To avoid this situation, charge the battery for more than three hours at least once every six months.

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. If you have a maintenance service contract, parts are replaced periodically according to the terms of the contract.

NoteThe 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.