| 摘要 |
PROBLEM TO BE SOLVED: To provide a storage device of high-redundancy and a control method therefor. SOLUTION: By replacing an HDD inside a pool losing redundancy among a plurality of pools for an HDD of a spare inside the same device or an HDD inside the other pool, the redundancy is generated in the pool once losing the redundancy. Accordingly, the high redundancy can be obtained. COPYRIGHT: (C)2008,JPO&INPIT
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