A restore management apparatus comprising a restore performing unit which performs restoration of a data and stores the data in a restore disk which is distinct from a backed up disk, a management unit that manages progress of the restoration performed by the restore performing unit, and an access controlling unit that references the progress of the restoration managed by the management unit, makes the restore performing unit preferentially perform the restoration of data that includes a region where the restoration is not completed in response to a data access request to the region, and accesses the region of the restore disk after the restoration is completed.