Both your vol4 and vol5 are unix-style volumes (means permissions are governed by the UNIX file permissions) with the same world-rw exports and share permissions. However, vol5 has 700 permissions so only the owner account root can access it and, unless being accessed from 10.22.85.8, that root is not the same as the client's local root account. If you plan to access this volume from multiple clients and/or as any account other than root on 10.22.85.8, then you need to adjust at least the top-level directory's ownership and permissions (or extend your root export option I suppose).
