Now as an example, you have created 2 partitions, on both disks which are 10gig in size. Then comes the "tricky" part. Converting to Dynamic disks. This is done in the following manner.Go to your systems config screen
And then go to System management
Now if you right click on any of the 2 disks, you can choose to create a dynamic-disk.
Press it and follow the wizard.
Then click right click again on Disk 1, and create a new volume in stripped mode.
Follow the simple wizard, when asked which disk to strippe with, choose disk 2 ( should be on the left side of the wizard, in of course also 10gig ) then when all is complete you have a Raid0 array running.