On 29/04/18 03:42, o1bigtenor wrote: > Greetings > > Had some system issues and decided in the process of trying to repair > things that I would rather use my SSD (/dev/sdd) for my operating > system disk with the goal of improving performance. Up to this time > the raid-10 array had been working as expected so there are/were no > complaints nor issues. I can't see a "cat /proc/mdstat" in that list. It looks to me that the array might be assembled but not running - though why that should happen I haven't a clue. Try mdadm --stop /dev/md0 mdadm --assemble --scan In other words, stop the array, and then let mdadm reassemble whatever it can find. Hopefully you'll either get a working array, or some useful error messages. Cheers, Wol -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html