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. 26, 2017
Filed:
Sep. 13, 2013
Applicant:
Vmware, Inc., Palo Alto, CA (US);
Inventors:
Kevin Scott Christopher, Sunnyvale, CA (US);
Trevor John Thompson, Los Altos Hills, CA (US);
Assignee:
VMware, Inc., Palo Alto, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 11/14 (2006.01);
U.S. Cl.
CPC ...
G06F 11/1458 (2013.01); G06F 11/1451 (2013.01); G06F 2201/815 (2013.01); G06F 2201/84 (2013.01);
Abstract
Systems and methods for performing backups to a storage device are provided. For virtual disks of a virtual machine, snapshots are used to backup data periodically to a storage device. A disk virtualization layer 'retires' data blocks associated with a snapshot, while retaining a list of block addresses, for comparison in future backup operations. The retired snapshot can be compared against future snapshots to generate incremental backups without occupying storage space with data blocks that have already been copied to another storage device.