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:
Jul. 28, 2020
Filed:
Jun. 30, 2014
Veritas Technologies Llc, Mountain View, CA (US);
Dulipsinh Deshmukh, Assam, IN;
Mandar Khanolkar, Maharashtra, IN;
Veritas Technologies LLC, Santa Clara, CA (US);
Abstract
Disclosed herein are various systems and methods for performing block level incremental backup operations for QCOW2 virtual disks. A first snapshot of a virtual disk is taken and used by a virtual machine at a first point in time. The virtual disk is implemented as a QCOW2 image, and taking the first snapshot causes the first snapshot to be stored in the QCOW2 image. A second snapshot of the virtual disk is taken at a second point in time. Taking the second snapshot causes the second snapshot to be stored in the QCOW2 image. One or more blocks of the virtual disk that have been modified between the first point in time and the second point in time are identified using metadata stored in the QCOW2 image. An incremental backup operation is then performed on the virtual disk by copying one or more blocks from the second snapshot to backup storage.