Good afternoon, Clement, Marc, On 10/29/2015 11:59 AM, Clement Parisot wrote: > we've got a problem with our old RAID 6. > After an electrical maintenance, 2 of our HDD came in fail state. An alert was sent that said everything was reconstructing. > md1 reconstruction works but md2 failed as a 3rd HDD seems to be broked. A new disk has been successfully added to replace a failed one. > All of the disks of md2 changed to Spare state. We rebooted the server but it was worse. > As you can see, RAID is in "active, FAILED, Not Started" State. We tried to add the new disk, re-add the previously removed disks as they appears to have no errors. > 2/3 of the disks should still contains the datas. We want to recover it. Your subject is inaccurate. You've described a situation that is extraordinarily common when using green drives. Or any modern desktop drive -- they aren't rated for use in raid arrays. Please read the references in the post-script. > I tried procedure on RAID_Recovery wiki > mdadm --assemble --force /dev/md2 /dev/sda /dev/sdc /dev/sdd /dev/sde /dev/sdf /dev/sdg /dev/sdh /dev/sdi /dev/sdj /dev/sdk /dev/sdl /dev/sdm /dev/sdn /dev/sdo /dev/sdp > but it failed. > mdadm: failed to add /dev/sdg to /dev/md2: Device or resource busy > mdadm: failed to RUN_ARRAY /dev/md2: Input/output error > mdadm: Not enough devices to start the array. Did you run "mdadm --stop /dev/md2" first? That would explain the "busy" reports. Before proceeding, please supply more information: for x in /dev/sd[a-p] ; mdadm -E $x ; smartctl -i -A -l scterc $x ; done Paste the output inline in your response. Phil [1] http://marc.info/?l=linux-raid&m=139050322510249&w=2 [2] http://marc.info/?l=linux-raid&m=135863964624202&w=2 [3] http://marc.info/?l=linux-raid&m=135811522817345&w=1 [4] http://marc.info/?l=linux-raid&m=133761065622164&w=2 [5] http://marc.info/?l=linux-raid&m=132477199207506 [6] http://marc.info/?l=linux-raid&m=133665797115876&w=2 [7] http://marc.info/?l=linux-raid&m=142487508806844&w=3 [8] http://marc.info/?l=linux-raid&m=144535576302583&w=2 -- 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
