Mac Pro internal RAID1 won't mount after Boot Camp issue
I recently had a struggle with my internal drives after installing Boot Camp where all drives wouldn't mount, therefore I couldn't boot back into Mac OS. To resolve, I booted from a USB with Mojave Installer, ran First Aid, and mounted the drives in question (other than the RAID) from there. Now, my internal RAID1 remains unmounted, and I cannot access anything on it.
From Disk Utility booted off the Mojave USB, the RAID is correctly named, but greyed out. Running First Aid produces the error message, "First Aid found corruption that needs to be repaired. To repair the startup volume, run First Aid from Recovery." For what it's worth, the RAID is not a startup volume.
From Disk Utility on the startup drive (OS 10.11.6), it looks a little different. The RAID itself is shown as "Untitled", and the two drives are listed separately as their manufacturer part number.
I can't seem to upload photos directly, so here's an Imgur link of the Disk Utility application within the Mojave USB.
Imgur: The magic of the Internet
Any ideas?
Mac Pro, OS X El Capitan (10.11.6)