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:
Jun. 28, 2022

Filed:

Mar. 20, 2020
Applicant:

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

Inventors:

Qinghua Ling, Beijing, CN;

Xin Zhong, Beijing, CN;

Yue Yang, Beijing, CN;

Yan Shao, Beijing, CN;

Assignee:

EMC IP Holding Company LLC, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/14 (2006.01); G06F 11/20 (2006.01); G06F 11/30 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1464 (2013.01); G06F 11/1451 (2013.01); G06F 11/1461 (2013.01); G06F 11/1469 (2013.01); G06F 11/2082 (2013.01); G06F 11/3034 (2013.01); G06F 2201/84 (2013.01);
Abstract

Techniques for managing a storage system involve at a second device: in response to receiving a command to failback a first device, determining a snapshot synchronized between the second device and the first device before a failure of the first device, wherein the first device has been failed over to the second device; causing the first device to be restored based on the snapshot; determining a change in latest data of the second device relative to the snapshot; and synchronizing the change to the first device.


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