So far, the rebuild process is going along well. Later on the 14th, I went through the hardware on the system, thinking perhaps a controller had died, or a power splitter had failed. Neither was the case, as I had forgotten that I don’t have any controllers with only two disks plugged in, and the box isn’t actually using any splitters at all. I went through the whole thing and cleaned it out and checked all of the connections, and swapped a few SATA cables that seemed to be iffy just to be safe.