In oue Dev Environment which has 3 ESXi 6 servers that use older NetApp running ontop version 8.x. I created a new volume, granted each host read / write and root access and ensured Unix permission are selected. No matter what I do I get the same error message in VMware "Cannot open file....." I have checked the IP in the export a number of times any they are correct. The vmkernel logs says it was denied by the NFS server but I do not know how. Also the hosts have other Lun mounted from this NetApp alraedy that are working.