| 摘要 |
PROBLEM TO BE SOLVED: To speed up the backup processing speed. SOLUTION: This slit issuing device retrieves the data file of data different from the data file of the same file name backup-preserved on a disk device 15 for backup preservation among various data files preserved on a disk device 14 for job. When the relevant data file is detected, that data file is stored on the disk device 15 for backup preservation. |
