■ Verify that you have at least two ESXi hosts that are licensed for vMotion or are in evaluation mode.
■Verify that you have running instances of vCenter Server and the vSphere Web Client.
■Verify that hosts have access to shared storage of a supported type, such as Fibre Channel, iSCSI, or NAS.
■Verify that the source and destination hosts have compatible CPUs.
■Verify that hosts have access to the same physical networks.
■Verify that you have at least one active Gigabit Ethernet adapter on each host.
■Virtual machine files must be on shared storage visible by the hosts.
■Virtual machines must run a supported operating system.
■Virtual machines must not have a connection to a virtual media device with a mounted local image.
■Virtual machines must not have a connection to an internal vSwitch that is not connected to a physical network.
■Virtual machines must have access to the same subnets.
■Virtual machines must not have CPU affinity configured.
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