Virtual Machine Configuration Requirements for vMotion

You cannot use migration with vMotion to migrate virtual machines that use raw disks for clustering.

If virtual CPU performance counters are enabled, you can migrate virtual machines only to hosts that have compatible CPU performance counters.

You cannot use migration with vMotion to migrate a virtual machine that uses a virtual device backed by a device that is not accessible on the destination host. (For example, you cannot migrate a virtual machine with a CD drive backed by the physical CD drive on the source host.) Disconnect these devices before migrating the virtual machine.

Virtual machines with USB passthrough devices can be migrated with vMotion as long as the devices are enabled for vMotion.

You cannot use migration with vMotion to migrate a virtual machine that uses a virtual device backed by a device on the client computer. Disconnect these devices before migrating the virtual machine.