Patent · US Active

Virtual machine disk image backup using block allocation area

US9471366B2 · kind B2 · utility

2Cited by

6References

16Claims

0Family size

Assignee

International Business Machines Corporation · US

Inventors

Dirk Bolte · Birkenfeld, DE
Marco Kraemer · Sindelfingen, DE
Jakob C. Lang · Altdorf, DE
Angel Nunez Mencias · Stuttgart, DE
Thomas Pohl · Holzgerlingen, DE
Martin Troester · Eppelheim, DE

Key dates

Filing date	Nov 1, 2015
Grant date	Oct 18, 2016
Priority date	—
Expiry date	Nov 1, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG06F2009/45579
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for managing virtual machine image disk usage comprising a disk image emulator for a virtual machine provided by a hypervisor, comprising the steps of providing at least a first disk image comprising a sequence of data blocks for accumulating write operations to the first disk image, providing at least a second disk image comprising a sequence of data blocks for permanently storing disk image data, and providing a disk cleaning process for transferring disk image data from the first disk image to the second disk image and deleting unused data blocks in the first and/or the second disk image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.