The primary media drive on my server was approaching capacity. I was not looking forward to having to buy a 6TB disk (and another 6 to mirror it.)
But lo and behold - I found a spare drive in the closet! It was enough to permit me to run a dedicated video drive for the RetroBox Project and a separate disk for my audio library (and both are mirrored remotely.)
I'll take free additional storage any day!
