vSphere 6: NFS 4.1 Finally Has a Use? February 3, 2015 By Stephen 2 Comments Way back in the 1990’s, UNIX admins delighted in upgrading from NFSv2 to NFSv3. Then NFSv4 came around and … crickets. Now VMware has become the first major/useful/mainstream application for NFSv4.1, so the floodgates are open! But are they?