Data deduplication using CRC-seed differentiation between data and stubs

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United States of America Patent

PATENT NO 9015552
APP PUB NO 20130262422A1
SERIAL NO

13894016

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Abstract

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Various embodiments for differentiating between data and stubs pointing to a parent copy of deduplicated data are provided. Undeduplicated data is stored with a checksum of an initial value as a first cyclic redundancy check (CRC) seed. A stub pointing to the parent copy of the deduplicated data is stored with an additional checksum of a differing, additional initial value as a second CRC seed.

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Patent Owner(s)

  • INTERNATIONAL BUSINESS MACHINES CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bates, Allen K Tucson, US 53 395
Haustein, Nils Soergenloch, DE 206 3285
Klein, Craig A Redington Beach, US 74 1067
Krick, Frank Ockenheim, DE 73 446
Troppens, Ulf Mainz, DE 49 1089
Winarski, Daniel J Tucson, US 210 2079

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