Methods and systems for vectored data de-duplication

Details Methods and systems for vectored data de-duplication Methods and systems for vectored data de-duplication

2011-07-12

2011-07-12

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Address formation

Hashing

C711S202000, C711SE12001, C711SE12060

Reexamination Certificate

active

07979670

ABSTRACT:
The present invention is directed toward methods and systems for data de-duplication. More particularly, in various embodiments, the present invention provides systems and methods for data de-duplication that may utilize a vectoring method for data de-duplication wherein a stream of data is divided into “data sets” or blocks. For each block, a code, such as a hash or cyclic redundancy code may be calculated and stored. The first block of the set may be written normally and its address and hash can be stored and noted. Subsequent block hashes may be compared with previously written block hashes.

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patent: 5990810 (1999-11-01), Williams
patent: 2003/0149856 (2003-08-01), Cernea
patent: 2005/0071436 (2005-03-01), Hsu et al.
patent: 2009/0063795 (2009-03-01), Yueh
Patent Cooperation Treaty (PCT) International Search Report from co-pending PCT International Application No. PCT/US2009/031717 (International Filing Date Jan. 22, 2009) having mailing date of Mar. 3, 2009.

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