The reconstruct time on the IX4-200D was over 24 hours. When it finally finished the array detected a fault again and restarted the reconstruction. I have a spare ordered. I hope I don’t incur a second drive failure. I will take a backup in the event that happens.
On a lighter note, VMware ESXi 5.5 and 6.0 beta appear to work perfectly on the Dell and the old whitebox motherboards.