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:
Apr. 11, 2017

Filed:

Dec. 28, 2015
Applicant:

Ca, Inc., New York, NY (US);

Inventors:

Austin Fang, Beijing, CN;

Zhe He, Beijing, CN;

Lei Li, Beijing, CN;

Taiwen Zhang, Beijing, CN;

Assignee:

CA, Inc., New York, NY (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01); G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1451 (2013.01); G06F 11/1453 (2013.01); G06F 11/1458 (2013.01); G06F 17/3007 (2013.01); G06F 17/30091 (2013.01); G06F 2201/84 (2013.01);
Abstract

A system divides a source computer storage device into a plurality of logical volumes, and creates a first recovery point data file and a first recovery point index file. In response to an incremental backup of a first logical volume, the system creates a second recovery point index file comprising a plurality of indices. In response to no data changing in a particular block in the first logical volume, the system points an index in the second recovery point index file to the particular block in the first logical volume. In response to data changing in the particular block in the first logical volume, the system creates a corresponding new block in a second recovery point data file. The system points the index in the second recovery point index file to the corresponding new block in the first logical volume.


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