Friday, February 25, 2005

Xen White Paper Xen also offers a capability for live migration of a running OS instance (also referred to as Virtual Machine Migration). This allows a running guest OS to be moved to a second machine in a very short time. While other products on the market today claim live migration as a feature, they typically cause the migrated application to be unresponsive for tens of seconds while it is moved. Under Xen, with a feature that enables copy on write for guest OS pages, the downtime is as low as 30-60ms, orders of magnitude faster than previously available. 10:58:56 AM      comment []  trackback []