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:
Sep. 08, 2020
Filed:
Oct. 06, 2017
Emc Ip Holding Company Llc, Hopkinton, MA (US);
Kedar Patwardhan, Irvine, CA (US);
Rajesh Nair, San Jose, CA (US);
EMC IP Holding Company LLC, Hopkinton, MA (US);
Abstract
A first list is received including locations of blocks of a file system that changed between current and previous backups. A superblock of the file system is read to generate a second list including locations of metadata records representing file objects. The first and second lists are intersected to return a third list including locations listed in the first and second lists. The locations in the third list are changed metadata records. A metadata record as of the current backup and identified in the third list is read. A previous version of the metadata record as of the previous backup is read. The current and previous metadata record versions are compared to detect potential conditions occurring between the backups. Upon detection of a first type of condition, information about the condition is recorded. Upon detection of a second type of condition, information about the condition is not recorded.