It's the mSATA drive which is an Intel 120GB SSD installed by PfSense when unit was purchased. Replaced it with an old 120GB laptop hard drive, reinstalled the OS, then restored the backup. So far everything seems to be working great so far.
What's lousy is that the unit was still in warranty when this all started. By the time i was able to troubleshoot and figure things out, the warranty has since expired. What's interesting is that the Intel SSD has a five year warranty.
One thing that, from my perspective, which is not fair, to get the image file, one has to pay for support or pay $19.00 for a thumb drive to be sent. Yes, $19.00 is not the end of the world, but waiting even a day to receive the thumb drive is not an option. This has to be up and running now. Since the updates are free, then why can't the image file be free if one can prove ownership of a PfSense device?