| 摘要 |
An apparatus includes a plurality of storage units, a setting unit configured to set mirroring areas to be subjected to mirroring in storage areas of the plurality of storage units, a determination unit configured to determine a degree of importance of data to be stored in the storage units, and a control unit configured to perform control to store data that has a high degree of importance into the mirroring areas of the plurality of storage units, and store data that has a low degree of importance into a non-mirroring area of any one of the storage units.
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