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:
Nov. 22, 2005
Filed:
Feb. 28, 2001
Mathieu Gagne, Boston, MA (US);
Mathieu Gagne, Boston, MA (US);
EMC Corporation, Hopkinton, MA (US);
Abstract
A method and apparatus for data recovery in a system involving a first data store acting as a standard volume and a physical moving mirror data store that operates in a first mode to be synchronized and in a second, isolated mode. A third physical mirror data store synchronizes with the second data store in its second operating mode. In response to a command to establish a third or reverse split operating mode, the data to be transferred in response to that command is identified. Copying of the identified data then commences from the third data store to the second data store to recover any data that may have been corrupted in the second data store.