Hi Eyal, On 1/26/19 12:34 PM, Eyal Lebedinsky wrote: > > # grep 'mismatch sector in range' /var/log/messages-2017 > Sep 23 09:47:47 e7 kernel: md127: mismatch sector in range 770366344-770366352 > I haven't got these messages about the 128 (still) units that appear to be out of sync. (128 is a suspiciously even number, anyway. I have found this also mentioned in https://bugs.debian.org/405919.) Regards Harri