Patent ID: 8555090
Filing Date: 2013-10-08
Classification: G06F

Abstract:
1. A storage apparatus comprising: a storage device that includes a cache and storage unit, and stores data by writing data stored in the cache to the storage unit; a main power supply that supplies a voltage to the storage device; a backup power supply that supplies a voltage to the storage device in a state in which the storage device is not supplied with the voltage from the main power supply, when the voltage supplied from the main power supply fails below a reference voltage, greater than the prescribed voltage; a detecting unit that detects a completion of charging the backup power supply; a control unit that controls the storage device so as to execute a backup processing for writing the data stored in the cache to the storage unit in a state in which the storage device is not supplied with the voltage from the main power supply; a timer that times a power-supply time being a duration of the voltage supply from the backup power supply to the storage device; and a notification unit that notifies a user of prescribed information indicating that the backup power supply has deteriorated, in a case where the power-supply time timed by the timer is smaller than a reference time for the backup processing even when the detecting unit has detected the completion of charging the backup power supply, and, does not notify the user of the prescribed information in a case where the power-supply time timed by the timer is smaller than the reference time for the backup processing when the detecting unit has not detected the completion of charging the backup power supply.