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:
Jan. 27, 2015
Filed:
Mar. 29, 2012
Philippe Armangau, Acton, MA (US);
Jean-pierre Bono, Westborough, MA (US);
Sitaram Pawar, Shrewsbury, MA (US);
Christopher Seibel, Walpole, MA (US);
Yubing Wang, Holden, MA (US);
Philippe Armangau, Acton, MA (US);
Jean-Pierre Bono, Westborough, MA (US);
Sitaram Pawar, Shrewsbury, MA (US);
Christopher Seibel, Walpole, MA (US);
Yubing Wang, Holden, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method is used in managing snapshot in cache-based storage systems. A request to create a snapshot of a data object is received. A portion of the data object is cached in a global cache. The data object is associated with a mapping object. The mapping object manages access to the portion of the data object. A snapshot of the data object is created. A snapshot mapping object is associated with the snapshot of the data object. The snapshot mapping object includes a link to the mapping object. The snapshot mapping object is a version of the mapping object and shares the portion of the data object cached in the global cache.