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:
Nov. 20, 2018
Filed:
Jun. 13, 2012
Grant R. Wallace, Pennington, NJ (US);
Philip N. Shilane, Yardley, PA (US);
Mark L. Huang, Seattle, WA (US);
Edward K. Lee, San Jose, CA (US);
Kai LI, Princeton, NJ (US);
Grant R. Wallace, Pennington, NJ (US);
Philip N. Shilane, Yardley, PA (US);
Mark L. Huang, Seattle, WA (US);
Edward K. Lee, San Jose, CA (US);
Kai Li, Princeton, NJ (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A computer-implemented method and system for deduplicating sub-chunks in a data storage system selects a data chunk to deduplicate and generates a sketch for the selected data chunk. A similar data chunk is searched for using the sketch. A set of fingerprints corresponding to sub-chunks of the similar data chunk is loaded. The set of fingerprints for the similar data chunk is compared to a set of fingerprints of the selected data chunk and the selected chunk is encoded as a set of references to identical sub-chunks of the similar data chunk and at least one unmatched sub-chunk.