Credit:
http://buildvirtual.net/troubleshoot-nfs-mounting-and-permission-issues/#comment-6242
tail -F /var/log/vmkernel.log
Usage: esxcli storage nfs add [cmd options] Description: add Add a new NAS volume to the ESX Host and mount it with the given volume name. Cmd options: -H|--host= The hostname or IP address of the NAS volume to add and mount on the system. (required) -r|--readonly If set this flag will set the mount point to be read-only. -s|--share= The share name on the remote system to use for this NAS mount point. (required) -v|--volume-name= The volume name to use for the NAS mount. This must be a unique volume name and cannot conflict with existing NAS, VMFS or other volume names. (required)
Add
esxcli storage add nfs -H [HOSTNAME] -s [/export] -v [DESCRIPTION_NAME] -r [READ_ONLY]
Remove
esxcli storage nfs remove -v [DESCRIPTION_NAME]