Change Details

Following up to https://rt.wikimedia.org/Ticket/Display.html?id=8529: I was just starting to test on these hosts, and noticed that the RAID-0 has a mix of the SSDs and spinning disks. The root FS also seems to be on the RAID-0, instead of a more conventional RAID-1 on spinning disks. It would be great to change this so that only the SSDs are in the RAID-0, so that we can test with SSD storage.