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:
Mar. 29, 2022
Filed:
May. 29, 2020
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Mikhail Danilov, Saint Petersburg, RU;
Mikhail Edkov, Saint Petersburg, RU;
EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);
Abstract
Verifiable intra-cluster migration (VICM) for a chunk storage system is disclosed. VICM can migrate data from a first portion of a cluster to a second portion of a cluster. VICM can comprise locking a first portion of a cluster and locking a corresponding first cluster table during a preparation phase. Chunks of the first portion can then be migrated, during a migration phase, to the second portion and a second cluster table, corresponding to the second portion, can be updated accordingly. Garbage management operations, including recovery operations, can be performed via the second cluster table and the second portion during the migration phase. Upon completion of the migration phase, a reconciliation phase can comprise verifying chunk relationships of the second cluster table and the second portion based on the first cluster table. Exceptions to the verification can be reported via an exception report.