System and method for retrieving and using block fingerprints for data deduplication

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United States of America Patent

PATENT NO 8412682
APP PUB NO 20080005141A1
SERIAL NO

11477886

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Abstract

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A system and method for calculating and storing block fingerprints for data deduplication. A fingerprint extraction layer generates a fingerprint of a predefined size, e.g., 64 bits, for each data block stored by a storage system. Each fingerprint is stored in a fingerprint record, and the fingerprint records are, in turn, stored in a fingerprint database for access by the data deduplication module. The data deduplication module may periodically compare the fingerprints to identify duplicate fingerprints, which, in turn, indicate duplicate data blocks.

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Patent Owner(s)

  • NETAPP, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fong, Yinfung Fremont, US 8 586
Zheng, Ling Sunnyvale, US 91 3370

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