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:
Sep. 12, 2017
Filed:
Sep. 16, 2015
International Business Machines Corporation, Armonk, NY (US);
Christopher B. E. Beeken, Eastleigh, GB;
Joanna K. Brown, Hampshire, GB;
Carlos F. Fuente, Southampton, GB;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Managing storage volumes in a point-in-time copy cascade. The cascade includes a first source volume, a first point-in-time target volume, and a second point-in-time target volume. The second point-in-time target volume is a point-in-time copy of the first point-in-time target volume. Upon detecting a corruption of the first point-in-time target volume the method creates a third point-in-time target volume from the second point-in-time target volume and directs I/O operations for the first point-in-time target volume to the third point-in-time target volume. The first point-in-time target volume is restored to the second point-in-time target volume and, when the restoration is complete, deletes the first point-in-time target volume.