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.
Patent No.:
Date of Patent:
Aug. 06, 2019
Filed:
Apr. 28, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Mikhail Danilov, Saint Petersburg, RU;
Konstantin Buinov, Prague, CZ;
Alexander Rakulenko, Seattle, WA (US);
Andrey Kurilov, Vsevolozhsk, RU;
Kirill Gusakov, Saint Petersburg, RU;
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A method for creating distributed erasure coding chunks in a distributed storage system with unbalanced load is disclosed. The operations comprise configuring the distributed storage system into at least k+m zones, wherein each zone accumulates at least l primary backup chunks of original data chunks replicated from different remote zones, and wherein l<k, and preparing the distributed storage system for recovery from a failure of 1 to m zones of the at least k+m zones including, in each zone, encoding the at least l primary backup chunks to create m coding chunks using an erasure coding having parameters k+m, wherein in each zone in which fewer than k primary backup chunks have been accumulated, at most k−l predetermined virtual chunks are used to create partial coding chunks.