System and method for fast restart of a guest operating system in a virtual machine environment
US8006079B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | Aug 23, 2011 |
| Priority date | — |
| Expiry date | Mar 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/45575
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a system and method for fast restart of a guest operating system executing on a virtual machine operating system in a virtual machine environment. During initialization, the guest operating system saves a set of checkpoint information to persistent storage. Upon detection of an error condition during operation, the guest operating system begins a re-initialization procedure in accordance with an illustrative embodiment of the present invention. During the re-initialization procedure, the guest operating system retrieves the checkpoint information and configures itself using the retrieved information. By utilizing the retrieved information, the guest operating system avoids the need to perform lengthy configuration discovery routines, thereby shortening the re-initialization time substantially.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.