What are the requirements for using live migration?
All the servers in a failover cluster must either run the x64-based version or the Itanium architecture-based version of Windows Server 2008 R2 (nodes within a single failover cluster cannot run different versions).
All the servers should have the same software updates (patches) and service packs.
Windows Server® 2008 R2 Enterprise or Windows Server® 2008 R2 Datacenter must be used for the physical computers. These servers must run the same version of Windows Server 2008 R2, including the same type of installation. That is, both servers must be either a full installation or a Server Core installation.
Configure all physical hosts that will use live migration with failover clustering, which supports up to 16 nodes per cluster.
Configure the cluster with a dedicated network for live migration traffic.
Configure physical hosts on the same TCP/IP subnet.
Provide shared storage access to all physical hosts.
Live Migration这些高级功能是基于微软Cluster，如果使用Cluster服务，还是要购买额外的服务器许可的，不是一单台服务器能做到的