It is now back in the server closet. I am not sure what was wrong, but at the very least, the swap drive mirror was not configured right (prob my fault), and the system drive mirror was degraded (and fixed).
No data loss apparently occured.
In addition, the kernel was upgraded to Linux 18.104.22.168, and the packages were upgraded to Slackware 10.1 series.
We should be all good to go now.