Patent ID: 8635471
Filing Date: 2014-01-21
Classification: G06F

Abstract:
1. A storage apparatus that writes data to a storage drive or reads data from a storage drive in response to an I/O request sent from an external unit, the storage apparatus comprising: a plurality of power supply devices that supplies the storage drive with drive power; a plurality of power supply paths provided for the respective power supply devices and each configured to supply drive power from the respective power supply device to the storage drive; and a plurality of gate units provided to the respective power supply paths and each configured to stop supplying drive power through the power supply path to the storage drive when detecting a voltage abnormality in the drive power supplied from the power supply device to the storage drive; each of the gate units includes: the gate circuit stops supplying the second voltage to the storage drive when the second voltage abnormality detection circuit detects the voltage abnormality.