&gt;<i>If you&#x27;ve gone to the effort of getting a massive raid like that for home use, you need a backup.
If you don&#x27;t have a backup, stop reading, you&#x27;re an arse.</i><p>Or maybe I need to have large NAS in volume BUT for transient data sets which I could not care less to lose (and thus backup), which makes you an ass for ass-summing.