Patent ID: 8473784
Filing Date: 2013-06-25
Classification: G06F

Abstract:
1. A storage apparatus that stores data comprising: a first memory; a second memory; and a processor configured to execute a process including: storing data stored in the first memory into the second memory as backup data upon occurrence of a power failure; restoring, upon recovery from the power failure, the backup data backed up in the second memory to the first memory and erasing the backup data stored in the second memory; terminating, upon a power failure occurring during an erasure processing for erasing the backup data stored in the second memory, the erasure processing; and re-backing up data in the first memory that corresponds to the backup data erased from the second memory to the second memory before the erasure processing is terminated, and wherein the re-backing up starts from a location subsequent to a last location that contains the backup data which has not been erased by the erasure processing.