| 摘要 |
A management server in a storage system manages a table that stores, as a change history, at least configuration change and a change time for plural volumes; acquires specification of a recovery-target volume and of a recovery time, and acquires, from the table, information on the specified volume and the specified recovery time; shows, in a user interface, a point of difference between a current configuration of the specified volume and a configuration of the specified volume as of at the specified time in a manner distinguishing it from the other parts in display based on the acquired information and current information on the specified volume; and recovers the specified volume to its state as of at the specified time based on backup data and journal data after acquisition of an instruction to recover the specified volume to its state as of at the specified time based on the display.
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