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:
Dec. 03, 2019

Filed:

Dec. 22, 2016
Applicant:

Hewlett Packard Enterprise Development Lp, Houston, TX (US);

Inventors:

Chunqi Han, Pleasanton, CA (US);

Anil Nanduri, Sunnyvale, CA (US);

Murali Krishna Vishnumolakala, Sunnyvale, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/10 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1088 (2013.01); G06F 11/1076 (2013.01); G06F 11/1084 (2013.01); G06F 11/1092 (2013.01); G06F 11/1096 (2013.01);
Abstract

Described herein are techniques for storing data in a redundant manner on a plurality of storage units of a storage system. While all of the storage units are operating without failure, only error-correction blocks are stored on a first one of the storage units, while a combination of data blocks and error-correction blocks are stored on a second one of the storage units. Upon failure of the second storage unit, one or more data blocks and one or more error-correction blocks formerly stored on the second storage unit are reconstructed, and the one or more reconstructed data blocks and the one or more reconstructed error-correction blocks are stored on the first storage unit.


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