On Sat Aug 8 2015 08:11:09 AM Mikael Abrahamsson wrote: > On Sat, 8 Aug 2015, Thomas Fjellstrom wrote: > > On August 7, 2015 02:38:22 PM Mikael Abrahamsson wrote: > >> On Thu, 6 Aug 2015, Thomas Fjellstrom wrote: > >>> Also, sdc has a much lower event count than the other drives, is that > >>> normal? > >>> > >>> /dev/sdc is the first drive that failed > >>> /dev/sdb is the one that was kicked after > >> > >> Can you please post dmesg output from when you unplugged the drive and > >> what happened to the array then? I guess you do not have "cat > >> /proc/mdstat" from then? It's weird that sdb was busy. Please post mdadm > >> version and kernel version. > > > > I posted both after the logs in the previous message, but I'll repeat > > here: > > > > Distro: OpenMediaVault / Debian wheezy > > Kernel: 3.16.7-ckt4-3~bpo70+1 > > Mdadm: v3.2.5 (from debian) and v3.3.4-22-gccc93b3 - 05th August 2015 > > Ah, my bad. > > First, I would recommend you to get the latest mdadm from Neils git > repository, compile it and try to use --assemble--force using that mdadm > instead, using the drives with the closest event count. > > Hopefully it will work and not treat the drive as a spare. I did try that :( It fails to assemble because it only sees sdc as a spare. Maybe because I did things with the old mdadm first, and did a --remove? That seems to have wiped out the "slot" information (it's -1) so the assemble force magic can't figure things out? Just a guess on my part. root@mrbig:~/build/mdadm# ./mdadm -v --assemble --force /dev/md0 /dev/sd[bdefgh] mdadm: looking for devices for /dev/md0 mdadm: /dev/sdb is identified as a member of /dev/md0, slot -1. mdadm: /dev/sdd is identified as a member of /dev/md0, slot 2. mdadm: /dev/sde is identified as a member of /dev/md0, slot 3. mdadm: /dev/sdf is identified as a member of /dev/md0, slot 4. mdadm: /dev/sdg is identified as a member of /dev/md0, slot 5. mdadm: /dev/sdh is identified as a member of /dev/md0, slot 6. mdadm: no uptodate device for slot 0 of /dev/md0 mdadm: no uptodate device for slot 1 of /dev/md0 mdadm: added /dev/sde to /dev/md0 as 3 mdadm: added /dev/sdf to /dev/md0 as 4 mdadm: added /dev/sdg to /dev/md0 as 5 mdadm: added /dev/sdh to /dev/md0 as 6 mdadm: added /dev/sdb to /dev/md0 as -1 mdadm: added /dev/sdd to /dev/md0 as 2 mdadm: /dev/md0 assembled from 5 drives and 1 spare - not enough to start the array. -- Thomas Fjellstrom thomas@xxxxxxxxxxxxx -- 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
