Il giorno mar 14 gen 2020 alle ore 08:24 Wols Lists <antlists@xxxxxxxxxxxxxxx> ha scritto: > The fact that the three event counts we have are near-identical is a > good sign. The worry is that sde2 disappeared a long time ago - have you > been monitoring the system? If you ddrescue it will it give an event > count almost the same as the others? If it does, that makes me suspect a > controller issue has knocked two drives out, one of which has recovered > and the other hasn't ... But as I can see, two drives are out on a RAID1+0 array, so the array is gone. I think we can only hope that these two disks were on different mirrors (but this isn't easily readable on mdadm output, I think i've sent an email asking for a better output some days ago) That's why I really really really hate anything with redundancy < 2, like a standard RAID1+0 Only 3way mirrors or RAID6 here.