Backup system and method for tape recording medium

摘要

On the basis of a priority table in which a plurality of group restoration priorities respectively corresponding to a plurality of element groups are recorded, the priority-based backup part backs up all of the backup object elements belonging to a first element group in a first continuous region which is a continuous recording region on a tape recording medium, and backs up all of the backup object elements belonging to a second element group whose group restoration priority is lower than that of said first element group in a second continuous region which is located on the tape tail end side of said first continuous region.