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. 02, 2021

Filed:

Nov. 14, 2018
Applicant:

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

Inventors:

Ethan S. Wozniak, Park Ridge, IL (US);

Praveen Viraraghavan, Chicago, IL (US);

Asimuddin Kazi, Naperville, IL (US);

Michael J. Niedbala, Chicago, IL (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/14 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 11/2092 (2013.01); G06F 11/1415 (2013.01); G06F 2201/85 (2013.01);
Abstract

A method for execution by one or more processing modules of one or more computing devices of a dispersed storage network (DSN), the method begins by detecting a failure (partial or full) of a dispersed storage (DS) unit memory device within the DSN. The method continues by tracking namespace ranges of encoded data slices intended for access in the failed DS unit memory device. The method continues by redirecting access of the encoded data slices reflected by the namespace ranges from the failed DS unit memory device to a failover DS unit memory device.


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