Let's say if the company only had 2 RAID array (RAID 1 for controlfile, redo and temp, system and RAID 5 for all datafile). How ASM will be applicable to this scenarios????

Do I still be able to set up DISK group 1 with all the Physical DISK (1 to 5)vaiable on the server???? and disk group 2 would be (6 to 10) and let RAID array controller do its owns things ????

I am a bit confused here.