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. 01, 2015

Filed:

Mar. 09, 2015
Applicants:

Gregory Burd, San Jose, CA (US);

Nedeljko Varnica, San Jose, CA (US);

Heng Tang, San Jose, CA (US);

Inventors:

Gregory Burd, San Jose, CA (US);

Nedeljko Varnica, San Jose, CA (US);

Heng Tang, San Jose, CA (US);

Assignee:

Marvell World Trade Ltd., St. Michael, BB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 20/10 (2006.01); G06F 11/10 (2006.01); G11B 20/18 (2006.01); G11B 20/12 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1076 (2013.01); G11B 20/1833 (2013.01); G11B 20/1217 (2013.01);
Abstract

Systems and techniques relating to fault tolerant data storage in storage devices, such as storage devices that employ Shingled Magnetic Recording (SMR) and/or storage devices that employ solid state memory, include a method, in some implementations, including: receiving, at a storage controller, a data request for a storage device; reading, in response to the data request, data from discrete units of storage in the storage device, the data comprising stored data read from two or more of the discrete units of storage and parity data read from at least one of the discrete units of storage; detecting an error in the stored data from the reading; and recovering stored data for at least one of the discrete units of storage using the parity data and the stored data read from one or more remaining ones of the two or more of the discrete units of storage.


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