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:
Jun. 28, 2016
Filed:
Jun. 30, 2015
Applicant:
Dell Products, Lp, Round Rock, TX (US);
Inventors:
Damon Hsu-Hung, Sudbury, MA (US);
Kannan Sasi, Nashua, NH (US);
Assignee:
Dell Products, LP, Round Rock, TX (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/14 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1469 (2013.01); G06F 11/1451 (2013.01); G06F 11/2082 (2013.01); G06F 11/2071 (2013.01); G06F 11/2094 (2013.01); G06F 2201/84 (2013.01);
Abstract
In one embodiment, a method of data recovery in a storage system includes, upon failure to fulfill an I/O request for requested data to a primary volume, consulting a change set to determine whether the requested data are current in a snapshot or replica. Further, such an embodiment includes providing the requested data using the snapshot or replica without further accessing the change set, if the requested data are current in the snapshot or replica, or issuing an error or failure status, if the requested data are not current.