| 摘要 |
A CPU (information processing unit) outputs file specification of data and an erasing instruction of data to an HDD controller (storage control apparatus, storage control unit). The HDD controller specifies a cluster into which overwriting data corresponding to a file should be written, and generates the overwriting data, and outputs specification of a cluster, the overwriting data, an overwriting instruction, and an instruction for invalidating entry information and FAT information (correspondence information) to an HDD (storage unit, storage means). The HDD writes the overwriting data into the specified cluster to erase the data, and invalidates the entry information and the FAT information. Accordingly, a burden on a process required for erasing stored data can be reduced.
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