Hi all, I have a raid6 setup (called /dev/md4) with 10 harddrives, ranged from sda to sdj. One of my drives fell out recently, /dev/sde3/ (not entirely sure how this happened), but I readded it as /dev/sdk3, and the array started rebuilding. This went on for several hours, and it hit 60% completed around 8 hours ago. However, a few hours after that, I lost both /dev/sdg3 and /dev/sdh3 - and the array stopped completely. My OS was also running on that array, so my entire system freezed forcing me to reboot. I've now booted into busybox and md tells me that it cannot reassemble the array as it can only find 7 out of 10 good drives.. I then read the instructions on https://raid.wiki.kernel.org/index.php/RAID_Recovery, I started using mdadm --examine and found that 8 out of 10 drives has identical event counters. The two that deviates from this is /dev/sdg3 and /dev/sdh3. I'm not entirely sure if the disk symbolic names are still the same, so I further assume that the 8/10 drives that are still good are the ones that were running OK before any of this started happening. As such, I try forcing a reassemble using mdadm -A /dev/md4 --force. When I now run mdadm -D /md4, it lists one device as spare (even though my array does not use any spares) - and I guess this is the main reason the array doesn't start. Can anyone confirm this, or am i missing something? Also, if I try setting the spare as failed by running mdadm -f /dev/md4 /dev/sde3, I get "no such device" (as recalled from human memory). Removing it works (mdadm -r /dev/md4 /dev/sde3), but every time I reassemble, it gets the "spare" tag. I also tried reassemble with force, but the same happened.. The initrd on this computer does not have networking unfortunately, so I cannot attach any output from any logs. If you agree with my summary so far, what should be my next action? Is there anything left to try before running mdadm create (with level 6 and 2 missing drives)? Best regards, Vegard Haugland -- Vegard Haugland <vegard@xxxxxxxxxxx> Mob. +47 976 68 262 Web: www.v3gard.com | foto.haugland.at If you want to send me encrypted email, my public GPG key is located at http://v3gard.com/files/gpg.pub -- 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
