Creating virtual machines
US9442753B2 · kind B2 · utility
3Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 26, 2013 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Sep 26, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2201/815
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method to create virtual machines is provided. An initially empty primary copy-on-write (COW) image of a base disk image is created, and an initially empty secondary COW image of the primary COW image is created. A virtual machine is booted from the secondary COW image. Writes by the virtual machine are stored in the secondary COW image. When the secondary COW image reaches a capacity threshold, data of the secondary COW image is committed into the primary COW image and then the secondary COW is cleared of data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.