You can add a host under a DRS cluster object. If a host contains virtual machines, the virtual machines are added to the inventory together with the host. For details about DRS clusters, see vSphere Resource Management.

Obtain the user name and password of the root account on the host.

Verify that hosts behind a firewall are able to communicate with the vCenter Server system and all other hosts through port 902 or other custom-configured port.

Verify that all NFS mounts on the host are active.

Required privileges:

Host.Inventory.Add host to cluster

Resource.Assign virtual machine to resource pool

System.View on the virtual machines folder where you want to place the virtual machines of the host.


In the vSphere Web Client, navigate to the DRS cluster where you want to add the host.


Type the IP address or the name of the host and click Next.


Type administrator credentials and click Next.


Review the host summary and click Next.


Assign a license key to the host.

Assign an existing license key

Choose from the license keys that are available in the inventory of the vCenter Server system where you add the host. If the host is already licensed, you can choose its currently assigned license key. If the host resides in the inventory of another vCenter Server system, its license will be copied to the inventory of this vCenter Server system. After you add the host to this vCenter Server system, make sure to remove its license key from the inventory of the host's previous vCenter Server system.

Assign a new license key

Add a new license key and assign it to the host.


(Optional) Select Enable Lockdown Mode to disable remote access for the administrator account after vCenter Server takes control of this host.

Selecting this check box ensures that the host is managed only through vCenter Server. You can perform certain management tasks while in lockdown mode by logging into the local console on the host.


Select a resource pool for the virtual machines of the host.

Put all of this host's virtual machines in the cluster's root resource pool

vCenter Server removes all existing resource pools of the host, and attaches all the virtual machines in the host's hierarchy to the root. Because share allocations are relative to a resource pool, you might have to change a virtual machine's shares manually after selecting this option, which destroys the resource pool hierarchy.

Create a new 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.


Review the summary and click Finish.

A new task for adding the host appears in the Recent Tasks pane. The task might take a few minutes to complete.