Live Migration requires failover clustering in Windows Server 2008 R2. Specifically, Live Migration can make use of the new Cluster Shared Volumes (CSV) feature contained in Windows Server 2008 R2.
The following are the requirements for performing Live Migration with a failover cluster:
Live Migration can only be performed between cluster nodes within the same failover cluster. (Virtual machines can only be moved between cluster nodes.)
Hyper-V™ must be running on the cluster nodes in the failover cluster and have access to the same shared storage.
The .vhd files for the virtual machines to be moved by Live Migration must be stored on the same shared storage.
The following figure illustrates a typical Hyper-V™ and failover cluster configuration for supporting Live Migration.
Figure 92: Typical configuration to support Live Migration
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