Selecting a migration policy
A migration policy specifies whether you want to enable vMotion migration for Flash Accel-enabled VMs, and the migration scope: the potential target hosts for cached VMs. You might target all the hosts in a cluster, for example, or all the hosts in a datacenter. Select the migration policy before allocating cache to VMs. You can override the policy for a given VM after allocating cache to it.
Steps 
1.
From the Navigation area of the FAMC, click Console Settings > Migration.
2.
Click Enable VM Migration to enable vMotion migration for Flash Accel-enabled VMs.
3.
Cluster for migration to target hosts in the same cluster.
Datacenter for migration to target hosts in the same datacenter.
Host for migration to the target hosts you specify.
4.
If you select Host, you must specify the target hosts for each VM you plan to migrate. Click the wrench icon for the VM in the VM Inventory page and select Advanced > Migration. In the migration dialog box, click Enable Migration, then select each migration target host. Click Save Configurations.
Parent Topic: Preparing for vMotion migration