SYSTEM AND METHOD FOR MANAGING DATA DEDUPLICATION OF STORAGE SYSTEMS UTILIZING PERSISTENT CONSISTENCY POINT IMAGES
First Claim
1. A method for managing data deduplication, comprising:
- receiving data at a storage system;
generating a persistent consistency point image (PCPI) of the received data on the storage system, the PCPI comprising a pointer referencing duplicate data in an active file system of the storage system; and
performing data deduplication on the active file system while the pointer references the duplicate data.
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Abstract
A system and method for managing data deduplication of a storage system utilizing persistent consistency point images (PCPIs). Once a target PCPI of a data transfer is generated, a backup management module of the storage system alerts a data deduplication module to begin deduplication of the data contained within the target PCPI. Once the deduplication procedure has been completed, the active file system of the storage system has been deduplicated, however, the target PCPI remains un-deduplicated. In response, the backup management module generates and exports a revised target PCPI. The previous target PCPI may then be deleted, thereby transitioning the exported PCPI'"'"'s image of the state of the file system to a deduplicated state.
80 Citations
22 Claims
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1. A method for managing data deduplication, comprising:
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receiving data at a storage system; generating a persistent consistency point image (PCPI) of the received data on the storage system, the PCPI comprising a pointer referencing duplicate data in an active file system of the storage system; and performing data deduplication on the active file system while the pointer references the duplicate data. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system configured to manage data deduplication, comprising:
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a processor configured to execute a storage operating system of a storage system, the storage system configured to receive data from a source; a backup management module of the storage operating system configured to cooperate with the storage system to generate a persistent consistency point image (PCPI) of the received data on the storage system, the PCPI comprising a pointer referencing duplicate data in an active file system of the storage system; and a deduplication module of the storage operating system configured to perform data deduplication on the active file system while the pointer references the duplicate data. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer-readable storage medium containing executable program instructions executed by a processor, the computer-readable storage medium comprising:
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program instructions that receive data at a storage system; program instructions that generate a persistent consistency point image (PCPI) of the received data on the storage system, the PCPI comprising a pointer referencing duplicate data in an active file system of the storage system; and program instructions that perform data deduplication on the active file system while the pointer references the duplicate data. - View Dependent Claims (21, 22)
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Specification