Patent ID: 7809979
Filing Date: 2010-10-05
Classification: G06F

Abstract:
1. A storage control apparatus for realizing a redundancy of data by conducting a control by which data and parity are dispersively stored in a plurality of storage devices, comprising: a processor, comprising; a first rebuild unit for restoring information in a first storage device by using information stored in the storage devices other than the first storage device, and writing the restored information in a first spare storage device, when the first storage device among the plurality of the storage devices fails; and a second rebuild unit for restoring information in a non-restored area in the first storage device, wherein the restored information restored by the first rebuild unit is not written in a non-restored area in the first spare storage device corresponding to the non-restored area in the first storage device, and restoring information in a second storage device by using information stored in the storage devices other than the first and the second storage devices, and respectively writing the restored information in the non-restored area in the first spare storage device still holding the restored information restored by the first rebuild device and in a second spare storage device, when the second storage device fails while the information in the first storage device is being restored.