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:
Feb. 10, 2015

Filed:

Jan. 04, 2013
Applicant:

Symantec Corporation, Mountain View, CA (US);

Inventors:

Xianbo Zhang, Plymouth, MN (US);

Haibin She, Beijing, CN;

Fanglu Guo, Los Angeles, CA (US);

Chao Lei, Beijing, CN;

Shuai Cheng, Beijing, CN;

Haigang Wang, Beijing, CN;

Dongxu Sun, Beijing, CN;

Hongxing Guan, Beijing, CN;

Wen Feng Jiang, Beijing, CN;

Assignee:

Symantec Corporation, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30156 (2013.01);
Abstract

A method for managing deduplication reference data may include (1) identifying multiple of data containers configured to store a plurality of deduplicated data segments that are referenced by multiple data objects within a deduplicated data system, (2) maintaining multiple reference databases including (i) a first reference database corresponding to a first subset of the data containers and (ii) a second reference database corresponding to a second subset of the data containers, the second subset differing from the first subset, (3) determining that a data object references at least one segment within a first data container within the first subset but does not reference any data segment within a second data container within the second subset and (4) updating the first reference database with information specifying that the data object references at least one data segment within at least one data container within the first subset of data containers.


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