6.0.1

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Errors might disable migration if no error-free destination hosts are available among the selected
destination hosts. In this case, if you click Next, the wizard displays the compatibility errors again, and
you cannot proceed to the next step.
Compatibility Checks During Migration Setup
When you aempt to move only the compute resource, the Migrate Virtual Machine wizard examines the
source and destination hosts, the target resource pool, the datastore, and the network. When you aempt to
move only the storage, the wizard checks the compatibility of the same objects except for the network.
When you move compute resources and storage together, the Migrate Virtual Machine wizard runs fewer
compatibility checks. For example, if you move the compute resource, you select the target host or cluster
under a vCenter Server instance. The wizard performs all necessary validation only against the selected
host, and does not check the datastores available on the destination host. When you aempt to move the
virtual machine to a cluster, the Migrate Virtual Machine wizard examines the compatibility against the host
recommendation from vSphere DRS. The wizard directly validates the compatibility of the target datastore
when you select it later.
Another compatibility check is whether vMotion is enabled on the source and target hosts.
Compatibility Checks for Virtual Hardware
Eects of a specic host CPU feature on compatibility are dependent on whether ESXi exposes or hides
them from virtual machines.
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Features that are exposed to virtual machines are not compatible when they are do not match on the
source and target hosts.
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Features that are not exposed to virtual machines are considered as compatible regardless of whether
they match on the hosts.
Specic items of virtual machine hardware can also cause compatibility problems. For example, a virtual
machine using an Enhanced VMXNET virtual NIC cannot be migrated to a host running a version of ESXi
that does not support Enhanced VMXNET.
vCenter Server and Host Management
146 VMware, Inc.