| 摘要 |
According to one embodiment, a disk array device capable of utilizing redundant areas, which are a part of areas on disk devices constituting a disk array and are not incorporated into the disk array, as areas of stand-alone disk devices other than the disk array, includes a determining unit configured to determine whether or not the redundant areas are in use as the areas of the stand-alone disk devices, and a disk array construction unit configured to make the determining unit determines whether or not the redundant areas are in use as the areas of the stand-alone disk devices in installing the redundant areas to construct a new disk array, and to re-arrange data recorded in the redundant areas onto the new disk array, when it is determined that the redundant areas are in use as the areas of the stand-alone disk devices.
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