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. 22, 2017
Filed:
Jul. 10, 2015
Emc Corporation, Hopkinton, MA (US);
Soumyadeb Mitra, San Jose, CA (US);
Windsor W. Hsu, San Jose, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A request is received to determine a consistent point of data stored in a file system of a storage system having storage units. In response to the request, a prime dependency list is retrieved from a first prime segment stored in a first storage unit, the prime dependency list including information identifying at least a second prime segment stored in a second storage unit. The first and second prime segments are identified by a first prime segment identifier (ID) and a second prime segment ID, respectively, which collectively identify a prime representing a first consistent view of the file system. The consistent point of data is determined based the prime segments listed in the prime dependency list, where the consistent point of data represents a file system state at a point in time for restoration of the file system back to a prior known state.