The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 01, 2022

Filed:

Apr. 29, 2019
Applicant:

Emc Ip Holding Company Llc, Hopkinton, MA (US);

Inventors:

Uri Shabi, Tel Mond, IL;

Vladimir Shveidel, Pardes-Hana, IL;

Maor Rahamim, Ramla, IL;

Ronen Gazit, Tel Aviv, IL;

Assignee:

EMC IP Holding Company LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 16/901 (2019.01); H04L 9/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0641 (2013.01); G06F 3/0608 (2013.01); G06F 3/0644 (2013.01); G06F 3/0673 (2013.01); G06F 16/9017 (2019.01); H04L 9/0643 (2013.01);
Abstract

A method of performing deduplication is provided. The method includes (a) selecting, by applying a deterministic selection criterion, a sub-block of a block of data that contains multiple sub-blocks; (b) performing a lookup, into a deduplication table, of a digest generated by hashing the selected sub-block, the lookup matching an entry indexed by the digest in the deduplication table, the entry identifying a previously processed block; and (c) effecting storage of the block, including pointing to the previously processed block. An apparatus, system, and computer program product for performing a similar method are also provided.


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