Matrix Raid 1 and 0 question

[Megalomaniac]

Anyone have this?
something like this at least

say you have 2 320GB drives

so Raid 0 - > 100GB of each drive for 200 GB total
Raid 1 - ? remainder 200 GB of each drive for acronis partition or some other form of mirroring copy of the raid 0


Leave the remainder 20 GB off as a form of really small short stroking

ICH8 or 9