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US 8,805,796 B1Granted
Deduplicating sets of data blocks
AssigneeEMC Corporation
InventorsYing Hu, Richard P. Ruef
Life of this patent
Estimating the term…
Abstract
A method is used in deduplicating sets of data blocks. A collection of data is selected from a set of storage extents. The collection of data is selected based on evaluation of digest information for first and second data blocks of the collection of data. A deduplicating technique is applied to the collection of data.
Claims20
A method for use in deduplicating sets of data blocks, the method comprising:
- determining a first data block from a first collection of data from a set of storage extents and a second data block from a second collection of data from the set of storage extents, wherein the first and second data blocks represent a pair of data blocks for applying a deduplicating technique based on evaluation of digest information of the first and second data blocks;
- based on the determination, applying the deduplicating technique for deduplicating a specific number of data blocks residing adjacent to the first data block to the specific number of data blocks residing adjacent to the second data block;
- and
- adjusting the application of the deduplicating technique based on determination of the number of data blocks from the specific number of data blocks that fail to get deduplicated.
1 more element
A system for use in deduplicating sets of data blocks, the system comprising a processor configured to:
- determine a first data block from a first collection of data from a set of storage extents organized on a storage system and a second data block from a second collection of data from the set of storage extents, wherein the first and second data blocks represent a pair of data blocks for applying a deduplicating technique based on evaluation of digest information of the first and second data blocks;
- applying, based on the determination, the deduplicating technique for deduplicating a specific number of data blocks residing adjacent to the first data block to the specific number of data blocks residing adjacent to the second data block;
- and
- adjusting the application of the deduplicating technique based on determination of the number of data blocks from the specific number of data blocks that fail to get deduplicated.
1 more element
Dependencies are inferred from the claim text.