See:
http://download-west.oracle.com/otnd...dbylogappx.htm


Log_archive_dest_n (n=1...9), but I think I had some problems in 9i with this, I'm not very clear why... The known problem of "option not installed: managed standby" - known, but not by me - , I had problems when I set it on installation point. I think is better if you make a db with the wizard to set it norchivelog at first, then change the state. But I'm not sure why, maybe I'm wrong, or it is a bug, or even Oracle changed something without telling...