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:
Jan. 07, 2020

Filed:

Sep. 03, 2016
Applicant:

Western Digital Technologies, Inc., Irvine, CA (US);

Inventors:

James N. Malina, Irvine, CA (US);

Kent Anderson, Broomfield, CO (US);

James C. Alexander, Newport Coast, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 3/06 (2006.01); G06F 12/02 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0611 (2013.01); G06F 3/0619 (2013.01); G06F 3/0638 (2013.01); G06F 3/0659 (2013.01); G06F 3/0683 (2013.01); G06F 12/0253 (2013.01); G06F 2212/1024 (2013.01); G06F 2212/1044 (2013.01);
Abstract

A data storage system includes a plurality of Data Storage Devices (DSDs). A write command is sent to each DSD of the plurality of DSDs to each store one or more erasure coded shards of an overprovisioned number of shards. The overprovisioned number of shards is generated from an erasure coding on data to provide at least a predetermined level of data reliability. Write complete indications are received for a threshold number of shards less than the overprovisioned number of shards, with each write complete indication indicating that one or more shards of the overprovisioned number of shards has been stored in a DSD. It is determined that the data has been written with at least the predetermined level of data reliability after receiving write complete indications for the threshold number of shards, but before receiving write complete indications for all of the overprovisioned number of shards.


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