Systems and methods for voluntary migration of a virtual machine between hosts with common storage connectivity
US7383405B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2004 |
| Grant date | Jun 3, 2008 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F9/4856
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a system and method that performs disk migration in a virtual machine environment. The present invention quickly and easily migrates a virtual machine from one host to another thus improving flexibility and efficiency in a virtual machine environment for “load balancing” systems, performing hardware or software upgrades, handling disaster recovery, and so on. Certain of the embodiments are specifically directed to providing a mechanism for migrating the disk state along with the device and memory states, where the disk data resides in a remotely located storage device that is common to multiple host computer systems in a virtual machine environment. The virtual machine migration process, which includes disk data migration, occurs without the user's awareness and, therefore, without the user's experiencing any noticeable interruption.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.