| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique capable of suppressing an increase in storage capacity required for storing restoration information continuously accumulated by backup.SOLUTION: A CPU 210 of a computer 20 sorts a plurality of pieces of incremental backup information 690 stored in a volume 631 of a storage device 60 for every unit period based on the timing of execution of incremental backup (step S230), and consolidates the plurality of pieces of incremental backup information 690 classified in the same unit period (step S240). |
