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. 22, 2016
Filed:
Jun. 30, 2014
Emc Corporation, Hopkinton, MA (US);
Hsing Yuan, Palo Alto, CA (US);
Suchit Kaura, San Ramon, CA (US);
Hymanand Nellore, Foster City, CA (US);
Joseph Jobi, Winnemucca, NV (US);
Sandeep Joshi, Campbell, CA (US);
Moiz Haidry, Campbell, CA (US);
Ravi Venkata Batchu, Cupertino, CA (US);
Narain Coimbatore Ramadass, Bangalore, IN;
EMC Corporation, Hopkinton, MA (US);
Abstract
Implementations are provided herein for incremental backup using a change tree. A change tree is a database file for tracking file system changes of a specific dataset, such as a directory of a file system. A backup process can create and/or initiate a change tree when creating a backup snapshot of a dataset. After the change tree is created, all file system changes inside the dataset can be tracked. The next incremental backup can then take advantage of the change tree to backup changes without traversing the entire dataset. Thus, incremental backups can be more efficient and are better able to keep up with tape streaming speed.