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:
Jun. 24, 2014
Filed:
Dec. 22, 2011
Sameer Mahajan, Pune, IN;
Dulipsinh Hanamant Deshmukh, Pune, IN;
Pradip Kulkarni, Pune, IN;
Nitin Anand, Pune, IN;
Sameer Mahajan, Pune, IN;
Dulipsinh Hanamant Deshmukh, Pune, IN;
Pradip Kulkarni, Pune, IN;
Nitin Anand, Pune, IN;
Symantec Corporation, Mountain View, CA (US);
Abstract
A system and method for determining the data that should be backed up by a plurality of backup policies are described. A global file change log that lists which files have been changed may be maintained. The global file change log may be processed to distribute the file change information into policy-specific file change logs. A global block change bitmap may also be maintained. The global block change bitmap may indicate which data blocks of the files have been changed. Performing a respective backup operation for a respective backup policy may include backing up only the data blocks that have changed in the files listed in the respective policy-specific file change log since a previous backup operation for the respective backup policy was performed. The data blocks that have changed may be specified in a respective policy-specific block change bitmap for the respective backup policy.