My Odroid HC2 has just arrived, along with the two identical 32GB SD cards, that I intend to use for the OMV.
What is the best way to keep them cloned so that if one suddenly fails, I can quickly slip in the replacement?
Should I physically remove the card (say, once a week), clone it with the second via a laptop and then replace it or is there a way to automatically update the card to my backup server?