Patent ID: 7395451
Filing Date: 2008-07-01
Classification: G06F

Abstract:
1. A storage control apparatus configured to write plural pieces of user data into (n-1) storage devices of n storage devices and to write parity data calculated from the plural pieces of user data into remaining one (1) storage device, the storage control apparatus comprising: a failure monitoring unit arranged to add points in proportion to detected abnormality to find statistically added points for each of the storage devices, the failure monitoring unit issuing an instruction to re-create parity when the statistically added points come closer to a predefined failure determination point; and a parity re-creation unit arranged, when receiving the instruction to re-create parity from the failure monitoring unit, to read the plural pieces of user data from the (n-1) storage devices to re-calculate parity data for write into the remaining one (1) storage device.