| 摘要 |
PURPOSE:To surely save information by generating an identifier for backup with respect to a storage medium and discriminating coincidence of the identifier to automatically discriminate whether the storage medium is a save object or not. CONSTITUTION:Information as the save object is stored in a storage device 3, and information is read out at a prescribed timing and is transferred to a disk device 4 and is written on a storage medium 7. The identifier for backup is generated for the first storage medium 7 to perform the backup processing of information, and coincidence between this identifier and an identifier generated at this time is checked with respect to second and following storage mediums 7. If they do not coincide, the identifier generated for backup at this time is written in second and following storage mediums 7, and information is saved. Thus, information is surely saved in objective storage mediums to prevent the other information from being written over already saved information. |
