Intel Matrix Storage on ICH9R, creating raid volumes

[QQuxa]

Hello,

from what I understand, using Intel Matrix Storage, you can create mixed raid arrays on a set of physical disks. For example, on two 1TB disks, you could create a 400Gb RAID0 array, 200GB RAID1 array, and 1200Gb JBOD disk.

But the problem is, what if one of those disks already has a live system on which matrix storage manager is run. How to create those volumes then?

thanks for any suggestions.