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:
Feb. 19, 2013
Filed:
Apr. 18, 2011
Haim Helman, Tel Aviv, IL;
Shemer Schwarz, Tel Aviv, IL;
Omri Palmon, Tel Aviv, IL;
Kariel E. Sandler, Tel Aviv, IL;
Haim Helman, Tel Aviv, IL;
Shemer Schwarz, Tel Aviv, IL;
Omri Palmon, Tel Aviv, IL;
Kariel E. Sandler, Tel Aviv, IL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the present invention provide methods, apparatuses, systems, and computer software products for data storage. A first copy of a logical volume is created. A second copy of the logical volume is created based on the first copy of the logical volume, such that the first and second copies are represented by respective first and second sets of pointers to physical storage locations in which data used by the copies is stored. Responsively to a corruption of at least part of the data that is used by the first copy. The first copy is restored from the second copy by replacing the first set with the pointers in the second set.