When you add a standalone host already being managed by vCenter Server to a DRS cluster, the host’s resources become associated with the cluster.
Before you begin
Launch the vSphere Client and log in to a vCenter Server system.
About this task
You can decide whether you want to associate existing virtual machines and resource pools with the cluster’s root resource pool or graft the resource pool hierarchy.
If a host has no child resource pools or virtual machines, the host’s resources are added to the cluster but no resource pool hierarchy with a top-level resource pool is created.
- Select the host from either the inventory or list view.
- Drag the host to the target cluster object.
- Select what to do with the host’s virtual machines and resource pools.
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.
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.