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. 10, 2014
Filed:
Mar. 30, 2012
Jian Xing, Pleasanton, CA (US);
Anand Raj, Bangalore, IN;
EMC Corporation, Hopkinton, MA (US);
Abstract
A source virtual machine (VM) disk file associated with a VM is parsed to generate metadata representing files stored in a virtual storage device of the VM, where the VM is one of VMs hosted by a VM monitor (VMM). In response to a request for an incremental backup of files stored in the source VM disk file, a file attribute of each of the files is examined based on the metadata to identify one or more files that have been modified within a predetermined past period of time. File records associated with the identified files are determined based on the metadata that have been modified within the predetermined past period of time. The identified file records are then backed up from the source VM disk file to a target VM disk file, without having to back up unmodified files in the source VM disk file.