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. 22, 2022

Filed:

Feb. 04, 2020
Applicant:

Emc Ip Holding Company Llc, Hopkinton, MA (US);

Inventors:

Mikhail Danilov, Saint Petersburg, RU;

Yohannes Altaye, Dumfries, VA (US);

Assignee:

EMC IP HOLDING COMPANY LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 12/00 (2006.01); G06F 3/06 (2006.01); G06F 11/10 (2006.01); G06F 11/20 (2006.01);
U.S. Cl.
CPC ...
G06F 3/0619 (2013.01); G06F 3/067 (2013.01); G06F 3/0647 (2013.01); G06F 3/0664 (2013.01); G06F 11/1004 (2013.01); G06F 11/1076 (2013.01); G06F 11/2023 (2013.01);
Abstract

The described technology is generally directed towards replicating metadata representing a virtual data structure corresponding to replicated legacy data instead of the actual data for the data structure. Once virtual chunks are replicated to a remote, newer storage system, the corresponding legacy data is locally read into the virtual chunks to transform the virtual chunks into real data chunks of the remote newer storage system. A checksum can be replicated for the remote newer storage system to evaluate the consistency of the data. Efficient data storage migration is thus accomplished in a replicated environment based on relatively negligible replication traffic between two remote locations, while still assuring the consistency of migrated data.


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