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:
Feb. 16, 2016
Filed:
Nov. 13, 2014
Emc Corporation, Hopkinton, MA (US);
Philip N. Shilane, Yardley, PA (US);
Grant R. Wallace, Pennington, NJ (US);
Mark L. Huang, Seattle, WA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A computer-implemented method and system for improving efficiency in a delta compression process in a data storage system selects a data chunk to delta compress and generates a sketch for the selected data chunk. The method and system search for a set of candidate data chunks with a matching sketch and rank the set of candidate data chunks by degree of sketch matching. The set of candidate data chunks are tie-braked using location status data for each candidate and the selected data chunk is delta compressed with a selected candidate data chunk. The delta compressed selected data chunk is then stored in a data storage system.