Systems and methods for facilitating long-distance live migrations of virtual machines
US8407182B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 21, 2011 |
| Grant date | Mar 26, 2013 |
| Priority date | — |
| Expiry date | Mar 21, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2009/4557
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A computer-implemented method for facilitating long-distance live migrations of virtual machines may include: 1) identifying a request for a live migration of a virtual machine from a primary site to a secondary site, the primary site including a primary storage device used for storage by the virtual machine being configured for active-passive replication to a secondary storage device at the secondary site, 2) initiating a failover of the active-passive replication from the primary storage device to the secondary storage device in response to the request, 3) intercepting each write attempt made by the virtual machine at the secondary site to the secondary storage device before completion of the failover, 4) buffering each intercepted write attempt, 5) determining that the failover is complete, and 6) applying each buffered write attempt to the secondary storage after determining that the failover is complete. Various other methods, systems, and computer-readable media are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.