Add an Unmanaged Host to a Cluster
You can add an unmanaged host to a cluster. Such a host is not currently managed by the same vCenter Server
system as the cluster and it is not visible in the vSphere Client.
Procedure
1 Select the cluster to which to add the host and select Add Host from the right-click menu.
2 Enter the host name, user name, and password, and click Next.
3 View the summary information and click Next.
4 Select what to do with the host’s virtual machines and resource pools.
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Put this host’s virtual machines in the cluster’s root resource pool
vCenter Server removes all existing resource pools of the host and the virtual machines in the host’s
hierarchy are all attached to the root. Because share allocations are relative to a resource pool, you
might have to manually change a virtual machine’s shares after selecting this option, which destroys
the resource pool hierarchy.
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Create a resource pool for this host’s virtual machines and resource pools
vCenter Server creates a top-level resource pool that becomes a direct child of the cluster and adds
all children of the host to that new resource pool. You can supply a name for that new top-level
resource pool. The default is Grafted from <host_name>.
The host is added to the cluster.
Adding Virtual Machines to a Cluster
You can add a virtual machine to a cluster in three ways.
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When you add a host to a cluster, all virtual machines on that host are added to the cluster.
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When a virtual machine is created, the New Virtual Machine wizard prompts you for the location to place
the virtual machine. You can select a standalone host or a cluster and you can select any resource pool
inside the host or cluster.
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You can migrate a virtual machine from a standalone host to a cluster or from a cluster to another cluster
using the Migrate Virtual Machine wizard. To start this wizard either drag the virtual machine object on
top of the cluster object or right-click the virtual machine name and select Migrate.
NOTE You can drag a virtual machine directly to a resource pool within a cluster. In this case, the Migrate
Virtual Machine wizard is started but the resource pool selection page does not appear. Migrating directly
to a host within a cluster is not allowed because the resource pool controls the resources.
vSphere Resource Management Guide
54 VMware, Inc.
