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.

Date of Patent:
Oct. 30, 2018

Filed:

Nov. 20, 2015
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Amir Epstein, Herzelia, IL;

Michael E. Factor, Haifa, IL;

Danny Harnik, Tel Mond, IL;

Ronen I. Kat, Kokav-Yair, IL;

Elliot K. Kolodner, Haifa, IL;

Dmitry Sotnikov, Rishon-Lezion, IL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/20 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 11/2097 (2013.01); G06F 3/0619 (2013.01); G06F 3/0647 (2013.01); G06F 3/0683 (2013.01); G06F 11/00 (2013.01); G06F 2201/805 (2013.01);
Abstract

A method for storage systems improvement includes collecting information that indicates one or more failure correlations for disks in a storage system. The disks are then separated into a plurality of virtual failure domains based on the indicated one or more failure correlations. The method then determines that all data objects of a set of redundant data objects are included in a first virtual failure domain. Responsive to determining that all data objects of the set of redundant data objects are included in the first virtual failure domain, the method then migrates at least one data object of the set of redundant data objects from a first disk in the first virtual failure domain to a second disk in a second virtual failure domain.


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