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:
Nov. 05, 2019
Filed:
Dec. 30, 2016
Applicant:
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Inventors:
Yaming Kuang, Shanghai, CN;
Weili Huang, Shanghai, CN;
Hansi Wu, Shanghai, CN;
Marc DeSouter, Wayne, NJ (US);
Ivan Bassov, Brookline, MA (US);
Frankie Wei Fang, Shanghai, CN;
Assignee:
EMC IP Holding Company LLC, Hopkinton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/23 (2019.01); G06F 16/16 (2019.01); G06F 16/174 (2019.01); G06F 16/2455 (2019.01);
U.S. Cl.
CPC ...
G06F 16/2365 (2019.01); G06F 16/16 (2019.01); G06F 16/1744 (2019.01); G06F 16/24562 (2019.01);
Abstract
A technique for repairing damage to a file system stores compression headers in association with respective extents of in-line compressed data. A repair utility reads contents from the compression headers and applies the contents to repair damaged metadata structures that the file system uses to access the associated extents. In this fashion, the repair utility restores access to compressed data, which would otherwise be lost.