The work I set out to do last night is completed except the final configuration was not what I had initially intended, however, I was not able to boot from flash owing to the BIOS of the machine only recognizing SATA flash drives and not PCIe drives which is unfortunate since all the SATA slots are full and the PCIe provides superior performance. But I was able to use it as a data drive so the database is moved off of IO/fusion drive to it, and the entire web server is on it. The defective disk has been replaced and there have been no more disk errors.
Starting around 11PM tonight, I plan on taking the web server down for about an hour to backup the new configuration. This will impact all eskimo.com web services including nextcloud and our social media sites friendica and hubzilla.
I plan to take Ubuntu down for about an hour to move it to another physical host for load balancing purposes.