Have you flashed the 9211 IT firmware to your IBM 1015?
If not, you should do
I'm going to give that a shot. The boot screen said IT firmware, but it could still be running the old IBM firmware. I'm getting the boot files together to do a mass flash of all 3 cards and I'll see how that works out.
Reflashing the cards worked just fine. The IT firmware I was seeing must have been the M1015 firmware and flashing to the 9211IT firmware had everything running inside of the IO VM without any problems. The only issue I did have is that I had to initialize every disk manually because they were not showing in the vdev creation screen. I'm now running some dd benchmarks to see what I can get out of this with an SSD ZIL and L2ARC.