STORAGE SYSTEM AND DEDUPLICATION CONTROL METHOD
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United States of America Patent
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Issued Date -
Oct 6, 2016
app pub date -
Dec 24, 2013
filing date -
Dec 24, 2013
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Abstract
A storage system divides a file into large chunks, executes primary deduplication processing (a first step in deduplication processing) to perform deduplication on the large chunks regardless of a file format, divides at least one large chunk into small chunks, and does not execute secondary deduplication processing (a second step in the deduplication processing) to perform deduplication on the small chunks when the file format satisfies a predetermined condition but executes the secondary deduplication processing when the file format does not satisfy the predetermined condition.
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