Did you know that with vSphere 6 you could share an already mounted NFS datastore to other host without repeat the nfs mount operations? In previous version the only way was scripting via PowerCLI or doing like a monkey (do the same n times).
Now simply press Dx mouse key over the datastore and choose the option << Mount Datastore to Additional Host>>; then choose the hosts in the cluster you should share this datastore.
Obviously NFS Storage must be reachable by the other hosts…
Just my 2 cents