the ufs implementation may be totaly different, Solaris uses open64() systemcalls, wich indicate, that the adressroom is 64bit large, I don't know the unixware systemcalls to doublecheck wether you enter wrong params or ufs on Unixware supports filesystems till 2GB
I guess it's a ufs-Unixware limit
Regards
-- Franz
Sorry I'm not a native spaeker, I'm from Munich, Germany - "Home of the Whopper", oh no, "Home of the Oktoberfest" ;-)