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:
Jul. 05, 2016
Filed:
Mar. 05, 2014
Emc Corporation, Hopkinton, MA (US);
Stephen Richard Ives, West Boylston, MA (US);
John F. Madden, Jr., Holden, MA (US);
Michael Dudnik, Newton, MA (US);
Hagit Brit-Artzi, Framingham, MA (US);
Roii Raz, Providence, RI (US);
Hui Wang, Upton, MA (US);
Gabi Hershkovitz, Newton, MA (US);
Qun Fan, Northborough, MA (US);
Ofer Michael, Irvine, CA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
Described are techniques for performing data migration for a source logical volume and a target. The target is configured as storage for another mirror of the source logical volume prior to copying data from the source logical volume to the target, and if the target is configured storage of another logical volume of the data storage system, the configured storage is remapped as storage for another mirror of the source logical volume prior to copying data from the source logical volume to the target. One or more invalid bits are set indicating that the target does not contain a valid copy of data from the source logical volume. Data is copied from the first mirror of the source logical volume to the target. Invalid bits are cleared as data portions of the first mirror of the source logical volume are copied to the target.