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:
Sep. 15, 2020

Filed:

Jun. 27, 2017
Applicant:

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

Inventors:

Man Lv, Beijing, CN;

Yong Zou, Beijing, CN;

Assaf Natanzon, Tel Aviv, IL;

Bing Liu, Tianjin, CN;

Assignee:

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

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01); G06F 11/10 (2006.01); G06F 3/06 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1004 (2013.01); G06F 3/064 (2013.01); G06F 3/067 (2013.01); G06F 3/0619 (2013.01); G06F 3/0664 (2013.01);
Abstract

One example method includes identifying a data block as being in a corrupted state, and calculating a value of a identifier corresponding to the data block, where the value of the identifier is based on contents of the data block. The value of the identifier is then compared with a value of another identifier that is part of a stored access record for the data block. Based on results of the comparison, the virtual machine is either identified as the cause of corruption of the data block, or the virtual machine is eliminated as being the cause of the corruption of the data block.


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