Karl,
Mark explained how this works better than I ever could. I'd just like to point out that the SecureShare tool allows you to view and change the underlying UNIX-style file permissions. It doesn't add any functionality to the filer. Dunno if you've had your hands on SecureShare but here's a what it looks like just in case: http://www.netapp.com/tech_library/images/3014_8.gif
Regards,
Paul Benn Network Appliance
How can a CIFS-client (without SecureShare) see the UNIX-permissions on files on a filer?