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.
Patent No.:
Date of Patent:
Aug. 27, 2013
Filed:
Sep. 30, 2011
Tushar Bandopadhyay, San Jose, CA (US);
Tushar Bandopadhyay, San Jose, CA (US);
Symantec Corporation, Mountain View, CA (US);
Abstract
Embodiments of the present invention are directed to a method and system for filesystem deduplication that uses both small fingerprint granularity and variable length sharing techniques. The method includes accessing, within an electronic system, a plurality of files in a primary storage filesystem and determining a plurality of fingerprints for the plurality of files. Each respective fingerprint may correspond to a respective portion of a respective file of the plurality of files. The method further includes determining a plurality of portions of the plurality of files where each of the plurality of portions has the same corresponding fingerprint and accessing a list comprising a plurality of portions of files previously deduplicated. A portion of a file of the plurality of files not present in the list may then be deduplicated. Consecutive portions of variables lengths having the same corresponding fingerprints may also be deduplicated.