We are planning to have VMFS Datastore on an NFS Share. Could someone please tell me what permissions are needed on the NFS Share? I guess root on the ESX host is used to access the NFS Share so i guess the NFS Share needs read/write access by root?
Here is a descent doc on the subject: http://www.anbecom.com/wordpress/?p=129
The steps would be a little different for other NFS servers/platforms but it should give you a good idea of what is required to make it work.