| 摘要 |
PROBLEM TO BE SOLVED: To increase the probability that high-priority data is quickly restored when a fault occurs.SOLUTION: A storage device 10 includes: a plurality of storage devices 11a, 11b, 11c, 11d having first memory regions R11, R12, R13, R14 for storing data A1, A2, A3, B1, B2, B3, and second memory regions R21, R22, R23, R24 for storing the same data as a part of the data stored in the first memory regions R11, R12, R13, R14, respectively, and storing the data A1, A2, A3, B1, B2, B3 belonging to the same management units V1, V2, in a distributed manner; and a control section 12 which sets a ratio of using the second memory regions R21, R22, R23, R24 of the storage devices 11a, 11b, 11c, 11d, for each of the management units V1, V2, on the basis of priority P set for each of the management units V1, V2. |
