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:
Mar. 26, 2019

Filed:

Jan. 16, 2018
Applicant:

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

Inventors:

Jeffery M. Franke, Apex, NC (US);

James A. O'Connor, Ulster Park, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 13/42 (2006.01); G06F 11/16 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0616 (2013.01); G06F 3/065 (2013.01); G06F 3/0629 (2013.01); G06F 3/0635 (2013.01); G06F 3/0688 (2013.01); G06F 3/0689 (2013.01); G06F 11/16 (2013.01); G06F 13/4282 (2013.01); G06F 2213/0024 (2013.01);
Abstract

Technical solutions are described for shifting wearout of an array of storage disks in a storage system. In an aspect, a method includes staggering completion of maximum number of writes for each storage disk in the array. The method also includes copying data from a storage disk in the array to a replacement disk and redirecting a request to access the data from the storage disk to the replacement disk. The method also includes, in response to passage of a predetermined duration of time since copying the data from the storage disk to the replacement disk, copying the data from the replacement disk to the storage disk and directing the request to access the data from the storage disk back to the storage disk.


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