Patent ID: 8756386
Filing Date: 2014-06-17
Classification: G06F

Abstract:
1. A backup apparatus which stores backup data at a predetermined time point into a storage area, the backup apparatus comprising: a plurality of storage devices, one of the storage devices including a storage area having a backup data storage area that stores backup data and having an addition-source area that is added to the backup data storage area when a capacity of the backup data storage area is insufficient; a detection section which detects whether to increase a capacity of the backup data storage area based on set allocations within the backup data; an assignment section which assigns, corresponding with one of the set allocations associated with the backup data when detecting that the capacity of the backup storage area is to be increased, a portion of the addition-source area having no set allocations within the backup data storage area; an addition-source detection section which detects whether to increase a capacity of the portion of the addition-source area based on the set allocation; and a setting section which automatically sets an unassigned storage area of the addition-source area in accordance with the set allocation when detecting that the capacity of the portion of the addition-source area is to be increased, and a transfer section including: wherein the new backup data storage area is set in a free storage area, generated by transferring the additional-source area, in the one of the storage devices.