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:
Nov. 30, 2021

Filed:

Jul. 10, 2018
Applicant:

Here Data Technology, Guangdong, CN;

Inventors:

Jingyao Zhang, Guangdong, CN;

Jian Zhu, Guangdong, CN;

Bin Hao, Guangdong, CN;

Assignee:

HERE DATA TECHNOLOGY, Shenzhen, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/07 (2006.01); G06F 11/10 (2006.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 11/0709 (2013.01); G06F 11/0772 (2013.01); G06F 11/1004 (2013.01); G06F 11/1464 (2013.01); G06F 11/1469 (2013.01);
Abstract

Disclosed is a method of data concurrent recovery for a distributed storage system, that is, a method for synchronous repair of multiple failed nodes with a minimum recovery bandwidth when a node in a distributed storage system fails. First an assistant node is selected to get helper data sub-block, then the repair matrix related to the data block stored in the node to be repaired is constructed, and finally the lost data block is reconstructed by multiplying the repair matrix and the helper data helper data sub-block; the missing data block is reconstructed by decoding, wherein the node to be recovered includes all failed systematical nodes, or all or partly failed parity nodes. The method is applicable to concurrently recover multiple failed nodes at minimal recovery bandwidth, and the nodes to be recovered are selected according to the demand to reduce the recovery bandwidth as much as possible.


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Zhang, Jingyao. (2021). Methods of data concurrent recovery for a distributed storage system and storage medium thereof (U.S. Patent No. 11188404). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11188404

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