A note on VPS's to help others...
I didn't know this until now, but while doing "the perfect server" i always kept getting stuck on the quota part so usually i skipped it but as i need it so greedy clients dont end up using all my disk space. My vps is on a open vz platform and in order to use the quota feature i had to open a support ticket with my vps provider and have them enable it. and the remount command will not work as open vz does not allow those permissions for the client so you must reboot the machine. Hope this helps someone!