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:
May. 14, 2019

Filed:

Sep. 14, 2015
Applicant:

Hgst Netherlands B.v., Amsterdam, NL;

Inventors:

Paul Frederick Dunn, Colorado Springs, CO (US);

Randall Lee Hess, Colorado Springs, CO (US);

Assignee:

HGST Netherlands, B.V., Amsterdam, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0625 (2013.01); G06F 3/064 (2013.01); G06F 3/0683 (2013.01); G06F 12/00 (2013.01); Y02D 10/154 (2018.01);
Abstract

The present disclosure relates to systems and methods of an optimized data layout in an erasure coded storage system. The system may be realized as a deterministic layout of storage devices in an erasure coded storage system. The system implements a method for writing pieces of a data object across storage devices of a specified write set included an erasure coded storage subsystem. The system further implements a method for reading a subset of pieces of a data object from an active read subset of storage devices in a read set included in the erasure coded storage subsystem and restoring the data object from the subset of pieces. The system may further include operating an inactive read subset of storage devices in a read set in a low power mode.


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