NFS Clients are usually Unix clients using the Network File System (NFS) protocol. 

When you highlight the NFS Clients object, the right pane displays a list of clients.

In order for an NFS Client to be able to access NAS resources, you must:

Add NFS Clients.

Create at least one NAS Resource.

Add/share one or more folders and assign the NFS Client to the shares.

Mount the share from the NFS Client's computer.