On 04/11/17 20:36, Reindl Harald wrote: >> >> While the system is RUNNING, yes. But if the array is STOPPED, mdadm >> will refuse to start it. At least, that's certainly how I understand >> it works ... >> >> Do you REALLY want the system to be running, and give you no clue that >> it's not working properly? > > mdmon typically writes a mail about a degraded array - so far away from > "no clue" mdmon? What's that? Yes, I know, it's the monitor. But how do you know whether or not it's running? It certainly isn't on my system. Anyways, as I said, as far as I am aware, "mdadm --run" does NOT work on a degraded array unless either the previous --run was on a degraded array, or you use --force. Which means if you remove a disk from an array, and then try to restart the array, the restart will fail. Which is exactly the OP's scenario. 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
