Storage system and storage control method
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United States of America Patent
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Jul 11, 2017
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app pub date -
Jun 23, 2014
filing date -
Jun 23, 2014
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Abstract
In a storage system, a controller prevents the same chunk data from being stored in a storage device in an overlapped manner, on the basis of data block information showing an association of each data block and a plurality of chunk data configuring each data block, chunk group information showing an association of each chunk data not to be overlapped and a chunk group which each chunk data belongs to, and reference data block information showing an association of each chunk group and a data block having any chunk data belonging to each chunk group as constituent elements.
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