Efficient calculation of similarity search values and digest block boundaries for data deduplication

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United States of America Patent

PATENT NO 9600515
APP PUB NO 20160103868A1
SERIAL NO

14970740

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Abstract

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For efficient calculation of both similarity search values and boundaries of digest blocks in data deduplication, input data is partitioned into chunks, and for each chunk a set of rolling hash values is calculated. A single linear scan of the rolling hash values is used to produce both similarity search values and boundaries of the digest blocks of the chunk. The rolling hash values are used to contribute to the calculation of the similarity search values and to the calculation of the boundaries of the digest blocks.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akirav, Shay H Petach-Tikva, IL 74 685
Aronovich, Lior Toronto, CA 182 1617
Ben-Dor, Shira Givat Shmuel, IL 9 51
Hirsch, Michael Mazkeret Batya, IL 104 2930
Leneman, Ofer Kfar Saba, IL 38 213

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