As users become more comfortable with virtualization, they start to look towards driving virtualization technology more directly into IT infrastructure, extending the scope of its functionality from single servers to multiple systems throughout a data center or organization. The deployment of virtual infrastructure allows multiple virtual machine hosts to be treated as a single, flexible pool of resources that can be allocated dynamically in response to changing workload conditions or downtime events.

Virtual infrastructure is enabled in part by the ability to perform online migration of virtualized workloads, in which they are migrated from one host to another with minimal disruption. Also, the implementation of High Availability (HA) and Disaster Recovovery (DRV) can be greatly simplified by combining virtualization functions with clustering mechanisms.

Click on one of the links below to see how the studied server virtualization platforms compare in supporting these functions:

	Resource Migration (9 ratings)
	Resource Pooling (3 ratings)
	High Availability & Disaster Recovery (6 ratings)