Reference Set Construction for Data Deduplication
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United States of America Patent
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May 24, 2017
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Jul 19, 2016
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By way of example, a data storage system may comprise a non-transitory storage device storing data blocks in chunks, and a storage logic coupled to the non-transitory storage device that manages storage of data on the storage device. The storage logic is executable to receive a data stream including one or more data blocks, identify a first chunk stored within the non-transitory storage device, retrieve a first local reference set from the first chunk, retrieve a global reference set from the non-transitory storage device, evaluate a performance of the first local reference set and the global reference set, select one of the first local reference set and the global reference set based on the evaluated performance, deduplicate each of the one or more data blocks using the selected reference set, and associate the deduplicated data blocks with the selected reference set.
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