BACKUP STORAGE SYSTEM, BACKUP STORAGE APPARATUS, AND METHOD FOR BACKING UP DATA
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United States of America Patent
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app pub date -
Jul 31, 2013
filing date -
Jan 25, 2013
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
According to one embodiment, a data storage device generates a full backup image or an incremental backup image as a backup image depending on whether the backup is of a first generation. The generated backup image is transferred to a backup storage device. A full backup generation unit of the backup storage device executes a merge process of merging an incremental backup image with a full backup image in order of generation. A reverse incremental backup acquisition unit of the backup storage device acquires, in order of generation, a reverse incremental backup image used to restore the full backup image not subjected the merge process from the full backup image subjected to the merge process.
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