I worked with support and this thread here, but what ultimately resolved it was Burn In.
Burn In worked fine until I added in the OS drive, which is an SSD that passed all the manufacturer's tests with their utility.
However when I added it to the Burn In test, the server locked up.
Considering how much time i was taking, I finally decided a $50 SSD from Fry's would be a great way to determine if it was the drive or not and save me a lot of time.
So, I got a new SSD, installed it, the OS and Scanner.
Everything ran without locking up.
I added drivepool and continued to scan with no issues.