On 03/22/2017 09:53 AM, Gandalf Corvotempesta wrote: > Last years i've lose a server due to 4 (of 6) disks failures in less > than an hours during a rebuild. > > The first failure was detected in the middle of the night. It was a > disconnection/reconnaction of a single disks. > The riconnection triggered a resync. During the resync another disk > failed. RAID6 recovered even from this double failure > but at about 60% of rebuild, the third disk failed bringing the whole raid down. > > I was waked up by our monitoring system and looking at the server, > there was also a fourth disk down :) > > 4 disks down in less than a hour. All disk was enterprise: SAS 15K, > not desktop drives. You should win a prize, Gandalf. In the several years I've participated on this mailing list, you are the first to describe such a catastrophe where the drives really were at fault, instead of timeout mismatch, power supplies, cables, or controllers. All four disks had permanent "FAILED" smartctl status after this, yes? Phil -- 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
