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.:

US 11132257 B1

PDF
Full Text
Expired
Date of Patent:
Sep. 28, 2021

Filed:

Jan. 02, 2019
Applicant:

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

Inventors:

Andrew D. Baptist, Mt. Pleasant, WI (US);

Greg R. Dhuse, Chicago, IL (US);

Adam M. Gray, Chicago, IL (US);

Wesley B. Leggette, Chicago, IL (US);

Jason K. Resch, Chicago, IL (US);

Ilya Volvovski, Chicago, IL (US);

Assignee:

PURE STORAGE, INC., Mountain View, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/10 (2006.01); G06F 3/06 (2006.01); H03M 13/15 (2006.01); G06F 12/0804 (2016.01);
U.S. Cl.
CPC ...
G06F 11/1092 (2013.01); G06F 3/064 (2013.01); G06F 3/0604 (2013.01); G06F 3/067 (2013.01); G06F 3/0619 (2013.01); G06F 3/0644 (2013.01); H03M 13/1515 (2013.01); G06F 11/108 (2013.01); G06F 12/0804 (2013.01); G06F 2211/1028 (2013.01);
Abstract

A method of rebuilding data stored as encoded data slices in a dispersed storage network (DSN) includes obtaining, by a rebuilding module implemented in a processing device, an identity of a plurality slices-in-error to be rebuilt, wherein each individual slice-in-error is associated with index information specifying: a particular dispersed storage unit associated with the individual slice-in-error; and a number of slices-in-error associated with the particular dispersed storage unit. A first slice-in-error is selected for rebuilding based, at least in part, on the number of slices-in-error associated with a first dispersed storage unit associated with the first slice-in-error. Read slice requests at least a decode threshold number of data slices are issued to the first dispersed storage unit. At least a decode threshold number of slices are received at the rebuilding module, which rebuilds the first slice-in-error using the received slices.


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