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:
Oct. 05, 2021

Filed:

Feb. 02, 2018
Applicant:

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

Inventors:

Yaming Kuang, Shanghai, CN;

Philippe Armangau, Acton, MA (US);

Xiao Hua Fan, Shanghai, CN;

Assignee:

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

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/20 (2019.01); G06F 16/23 (2019.01); G06F 11/14 (2006.01); G06F 16/185 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2365 (2019.01); G06F 11/1469 (2013.01); G06F 16/185 (2019.01); G06F 2201/80 (2013.01);
Abstract

There is disclosed a technique for managing data inconsistencies in file systems. For example, in one embodiment, the technique comprises detecting a data inconsistency relating to a file system block in a file system. The technique also comprises determining whether the file system block includes a mapping pointer associated with a first type of pattern. The technique further comprises performing recovery in connection with the file system block. The recovery including deciding whether to associate a mapping pointer of the file system block with one of a second type of pattern or a data loss state based on the said determination of whether the file system block includes a mapping pointer associated with a first type of pattern.


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