As long as they were added to
/etc/fstab correctly, they should work fine.
You should really use the
disk-wizard App or follow the
adding a second hard drive to your HDA guidance when mounting additional drives.
There may be something there you missed.
I am out of ideas, so not sure I can provide much more assistance.
Just for what it's worth, best to check for guidance in the
Amahi wiki when customizing your server beyond the basic install guidance. Otherwise you might find yourself in a bad place.
This is a non-standard setup and our support is limited. Sorry to say, but RAID just made setting up an HDA more complicated than necessary. That is one of the reasons why RAID is not the best choice for home servers. You would have been up and running hours ago with Greyhole and probably happier with your server. Better off as well in my opinion.