[QUESTION] How to keep existing permissions on old HDD

[kiss.dani]

Hi guys

I got a dead Windows 7 PC but HDD is ok. How can FreeNAS mount my "old" HDD with the "old" permissions?
I got ADS well configured, but my mount is root:wheel
wbinfo -g -u -p -t is ok, but cant select ADS users from GUI.
tried chown after ssh without luck:
chown DOMAIN\user:\DOMAIN\group /mnt/oldhdd got error
chown user:group /mnt/oldhdd run without error but nothing happens, still root:wheels ;(

The only solution is to put a new hdd to FreeNAS and copy my datas somehow?

thnx in advance:
Daniel