Patent ID: 8458398
Filing Date: 2013-06-04
Classification: G06F

Abstract:
1. A non-transitory computer-readable recording medium which stores a data management program for managing data redundantly stored in a plurality of storage devices having storage areas split into a plurality of slices for data management, the data management program causing a computer to perform a procedure comprising: receiving irregularity information indicating that a possibility of failure of a first storage device exists; storing the irregularity information of the first storage device in a memory; determining, by reference to the irregularity information stored in the memory, whether or not a possibility of failure of the first storage device containing a slice to be accessed exists, on receipt of access information indicating occurrence of a request to access the slice to be accessed; instructing a first slice management unit to perform processing for recovering data stored in the slice to be accessed, where the first slice management unit has a function of managing data input into and data output from a second storage device which stores redundant data identical to the data stored in the slice to be accessed, when the determining determines that the possibility of failure of the first storage device containing the slice to be accessed exists, wherein the instructing restrains against instructing for recovering data stored in a slice not to be accessed belonging to the first storage device until receipt of failure-detection information indicating that the first storage device is faulty; and deleting the irregularity information of the first storage device from the memory, when restoration information indicating that normal operation of the first storage device is confirmed is received before receipt of the failure-detection information.