For the past few years I've been running my Plex server from my main desktop with 2xWD Red 2TB drives in a RAID1 as the main datastore.
I recently upgraded my desktop and moved the old board into the guest room and installed OMV5. I have a 320GB HDD as boot, and I'm going to once again use Plex (docker/portainer) and the 2x2TB drives as the datastore.
I'm just now setting it all up and I'm reading that a two-disk RAID mirror under OMV may not be worth it. I don't have another good backup solution. I do have a spare 1TB drive that's not doing anything. (WD Blue).
I won't really have anything on the datastore that's irreplaceable, just downloaded movies that I can re-download if the worst happened. I would probably keep a backup of my favorites on another drive somewhere.
Before I get into the setup (I literally just installed OMV5 and did updates and that's it), what do we think? I think i've answered my own question...