With my Dell Precision Workstation T7400 came a SAS controller that supports both striping and mirroring. Total nr of physical connections is 4. What I'd like to do is plugin four 2TB disks, select two of them for striping and the other two for the mirror of the first two.
I know, RAID-5 would be more suitable here, but that's not supported as far as I can tell. Is this a common scenario and should this be possible with my hardware and/or with a new controller card?