In reply to: An idea to try posted by OrangeJubilee
Sorry didn't know you already did that step, thought you only booted into linux not rewired.
I haven't done this in a while, but I think this distribution will have the tools you need to mount the disk.
Basically you'd start your computer from the USB drive and run gparted to see if you can see the disk. I can't quite remember if RAID 1 has any special sauce other than writing twice, but I believe each drive should be visible.
Feel free to email me - I love a tech mystery or two.