Take a 40GB logical volume for example.  For RAID1, this would be two 40GB hypers on two disks and two DA targets.  If this was 3+1 there would be 4 13.3GB hypers spread over 4 disks and 4 DA targets.  If this was 7+1 there would be 8 5.71GB hypers spread over 8 disks and 8 DA targets  You can see that the raid type chosen can increase the splits on the drives and the DA targets.  You want to keep the splits and DA targets down, but you probably want a minimum of 8 hypers per physical drive.
In the 5874 code the max size of the 240GB but what would be normal practice?Curious to know...any ideas or thoughts.
Size of data devices for Virtual provisioning