9.5 hour process went to 8.5.
Used RAID 0 disks for temp space.
My bonnie++ write rate went from 80MB a second to 300MB per second. But my read read went down a bit, proving alternative reads on mirrored disks work.
I won't keep it like this, too scary.
It is pure temp, but I still don't want to have to recover from a failure.