Recovering failed raid6 with 3 failing devices.

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Hi,

I am trying to recover a 10 disk raid6-set, but to no succes.

After reading https://raid.wiki.kernel.org/index.php/RAID_Recovery, I tried the following but the —force option does not seem to work: 

root@kvm:/var/log# mdadm --assemble --verbose --force /dev/md127 /dev/sd[q-z]
mdadm: looking for devices for /dev/md127
mdadm: /dev/sdq is identified as a member of /dev/md127, slot 2.
mdadm: /dev/sdr is identified as a member of /dev/md127, slot 3.
mdadm: /dev/sds is identified as a member of /dev/md127, slot 4.
mdadm: /dev/sdt is identified as a member of /dev/md127, slot 5.
mdadm: /dev/sdu is identified as a member of /dev/md127, slot 6.
mdadm: /dev/sdv is identified as a member of /dev/md127, slot 7.
mdadm: /dev/sdw is identified as a member of /dev/md127, slot 1.
mdadm: /dev/sdx is identified as a member of /dev/md127, slot 0.
mdadm: /dev/sdy is identified as a member of /dev/md127, slot 8.
mdadm: /dev/sdz is identified as a member of /dev/md127, slot 9.
mdadm: added /dev/sdw to /dev/md127 as 1
mdadm: added /dev/sdq to /dev/md127 as 2
mdadm: added /dev/sdr to /dev/md127 as 3
mdadm: added /dev/sds to /dev/md127 as 4
mdadm: added /dev/sdt to /dev/md127 as 5
mdadm: added /dev/sdu to /dev/md127 as 6
mdadm: added /dev/sdv to /dev/md127 as 7 (possibly out of date)
mdadm: added /dev/sdy to /dev/md127 as 8 (possibly out of date)
mdadm: added /dev/sdz to /dev/md127 as 9 (possibly out of date)
mdadm: added /dev/sdx to /dev/md127 as 0
mdadm: /dev/md127 assembled from 7 drives - not enough to start the array.

The Event differences between the devices is not that much:

root@kvm:/var/log# mdadm -E /dev/sd[q-z] |grep Event
         Events : 9979
         Events : 9979
         Events : 9979
         Events : 9979
         Events : 9979
         Events : 9974
         Events : 9979
         Events : 9979
         Events : 9971
         Events : 9976

I’m running 
Linux kvm.wiebel.nl 4.2.0-30-generic #35-Ubuntu SMP Fri Feb 19 13:52:26 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux

and using mdadm - v3.3 - 3rd September 2013

Any help here would be very much appreciated, I’m guessing i’m overlooking something :)

Best regards,
Joris 


<<attachment: smime.p7s>>


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