activate raid with data on system with 2 hdd 1 tb each

view full story

http://www.ubuntux.org – i have a trouble just like at the subject, i have ubuntu server 64 bit rel. 9.1 my rayd controller is a promise fasttrack 2400, with two port sata 2 and working on raid 1 with 2 hdd wd 1tb 7200 rpm. Linux os is mounted on other hdd sata2 with wd 250 gb capacity. how can i use the raid ? and also i'd like don't detroy data on that array hw if is possible,someone can halp me? thank a lot Marco Canali (Distributions)