| 摘要 |
<p>According to the present invention, a time slot during which no operation is scheduled to be performed is set as a target time slot, and when all archive target data (A to F) to be archived can be stored within the target time slot (a time slot from Friday 17:00 to Monday 8:00), a storage operation for storing all of the archive target data in the target time slot is planned. When all of the archive target data cannot be stored in the target time slot (a time slot of Monday 12:00 to 13:00), a storage operation for storing some of the archive target data (E) in the target time slot is planned. A time slot during which no operation is performed is thereby used to perform a backup data storage operation, there is therefore no risk of data being updated during the backup data storage operation, and data that can react to mechanical troubles and the like can be stored as backup data.</p> |
