| 摘要 |
PROBLEM TO BE SOLVED: To provide a data maintenance device capable of determining a timing of data maintenance processing based on operation conditions without being accompanied with a heavy processing load. SOLUTION: The data maintenance device is provided with a data storage means 16, a control means 15 for controlling the storage means 16, a monitoring means 12 for monitoring the state of access to the storage means 16, and an operation decision means 14 for deciding from monitoring results whether with or without access to the storage means and for transmitting to the control means a command to perform data maintenance processing if without any access for a certain period of time. If without any access to the storage means 16 for more than the period of time predetermined by a user, data maintenance such as solution of fragmentation problem, substitute processing of damaged data, and error rate checking, is efficiently performed during the time the device is not used by the user. COPYRIGHT: (C)2003,JPO
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