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:
Apr. 14, 2015
Filed:
Jun. 20, 2011
Magnus E. Bjornsson, Sudbury, MA (US);
George Lettery, North Grafton, MA (US);
David Meiri, Cambridge, MA (US);
Magnus E. Bjornsson, Sudbury, MA (US);
George Lettery, North Grafton, MA (US);
David Meiri, Cambridge, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Described are techniques for performing data storage management. A first data portion is stored at a first logical address of a first device that is mapped to a first physical storage location at which the first data portion is stored. A second data portion is stored at a second logical address on a second device that is mapped to a second physical storage location at which the second data portion is stored. The first data portion is a duplicate of data contents of the second data portion and the first physical storage location is the same physical storage location as the second physical storage location. The first device and the second device are thin devices where physical storage is unallocated for at least a portion of each thin device's storage capacity at a point in time.