what kernel version and mdadm version? Jesús Bermúdez said: (by the date of Fri, 22 Oct 2010 16:51:20 +0200 (CEST)) > Hello all, > > if you could help us, for we are completely desperated... > > We have a raid5 with 3 disks that got out of sync due to a power failure. After tried to assemble (with mdadm --assemble --force /dev/md0) it says: > > md: md0 stopped mdbind sdb2 bind sda2 bind sdc2 > > md: md0: array is not clean starting background reconstruction > > raid 5 device sdc2 operational as raid disk 0 > device sda2 operational as raid disk 2 > device sdb2 operational as raid disk 1 > > allocated 32kb for md0 > > raid level 5 set md0 active with 3 out 3 devices algorithm 0 > > raid 5 conf printout > > rd:3 wd:3 > > disk 0,0:1 /dev/sdc2 > disk 1,0:1 /dev/sdb2 > disk 2,0:1 /dev/sda2 > > md0: bitmap file is out of date 892893 > forcing full recovery > > md0: bitmap file is out of date doing full recovery > > md0: bitmap initialisation failed: -5 > > md0: failed to create bitmap (-5) > > md: pers->run() failed > > mdadm: failed to run _array /dev/md0: input / output error > > Tried to stop the array and reassemble it with: > > mdadm --assemble --force --scan > mdadm --assemble --force --scan /dev/md0 /dev/sda2 /dev/sdb2 /dev/sdc2 > mdadm --assemble --force --run /dev/md0 /dev/sda2 /dev/sdb2 > mdadm --assemble --force --run /dev/md0 /dev/sda2 /dev/sdc2 > mdadm --assemble --force --run /dev/md0 /dev/sdb2 /dev/sdc2 > > Tried to solve the bitmap problem with: > > mdadm --grow /dev/md0 --bitmap=none > mdadm --grow /dev/md0 --bitmap=internal > mdadm --grow /dev/md0 --bitmap=none --force > mdadm --grow /dev/md0 --bitmap=internal --force > > Tried to fake the 'clean' status of the array with: > > echo "clean" > /sys/block/md0/md/array_state > > Tried to boot the array from grub with: > > md-mod.start_dirty_degraded=1 > > None of these commands have worked. Here are the details of the array and everyone of the disks: > > ----------------------------------------------------------------------------------------------------------------------------------- > mdadm -D /dev/md0 > > dev/md0 > version: 01.00.03 > creation time: august 28 18:58:39 2009 > raid level: raid5 > used dev size 83891328 (80:01 hid 85:90 gdb) > raid devices: 3 > total drives: 3 > preferred minor: 0 > persistent: superblock is persistent > update time: tue oct 19 15:09 2010 > Status: active, not started > Active devices: 3 > Working devices: 3 > Failed devices: 0 > Spare device: 0 > layout: left assimetric > chunk size: 128k > name: 0 > > UUID: ae9bd4fe:994ce882:4fa035e6:8094fc1a > events: 893 > > Number Major Minor RaidDevice State > 0 8 34 0 active sync /dev/sdc2 > 1 8 18 1 active sync /dev/sdb2 > 3 8 2 2 active sync /dev/sda2 > > ----------------------------------------------------------------------------------------------------------------------------------- > mdadm --examine /dev/sd[abc]2 > > > /dev/sda2: > > Magic:a92b4efc > Version:1,0 > Featura Map:0x1 > Array UUID:ae9bd4fe:994ce882:4fa035e6:8094fc1a > Name:0 > Creation Time:Fri Aug 28 18:58:39 2009 > Raid Level:Raid5 > Raid Devices:3:Avail Dev Size:167782712 (80,01GIB 85,90 GB) > Array Size:335565312 (160,01 GIB 171,81 GB) > Used Dev Size:167782656 (80,01 GIB 85,90GB) > Super Offset:167782840 Sectors > State:Active > Device UUID:bbc156a7:6f3af82d:94714923:e212967a > Internal Bitmap:-81 sectors from superblock > Update Time:re Oct 19 15:49:08 2010 > Checksum:54a35562 - correct > Events:893 > Layout:left-asymmetric > Chunk Size:128K > Array Slot:3 (0. 1, failed, 2) > Array State:uuU 1 failed > > > > /dev/sdb2: > > > Magic:a92b4efc > Version:1,0 > Feature Map:0x1 > Array UUID:ae9bd4fe:994ce882:4fa035e6:8094fc1a > Name:0 > Creation Time:Fri Aug 28 18:58:39 2009 > Raid Level:raid5 > Raid Devices:3 > Avail Dev Size:167782712 (80,01 GIB 85,90 GB) > Array Size:335565312 (160,01 GIB 171,81 GB) > Used Dev Size:167782656 (80,01 GIB 85,90 GB) > Super Offset:167782840 sectors > State:Active > Device UUID:d067101e:19056fdd:6b6e58fc:92128788 > Internal Bimap:-81 sectors from superblock > Update Time:Tue Oct 19 15:49:08 2010 > Checksum:61d3c2bf > Events:893 > Layout:left-asymmetric > Chunk Size:128k > Array Slot:1 (0, 1, failed, 2) > Array State:uUu 1 failed > > /dev/sdc2: > > Magic:a92b4efc > Version:1,0 > Featura Map:0x1 > Array UUID:ae9bd4fe:994ce882:4fa035e6:8094fc1a > Name:0 > Creation Time:Fri Aug 28 18:58:39 2009 > Raid Level:raid5 > Raid Devices:3 > Avail Dev Size:167782712 (80,01 GIB 85,90 GB) > Array Size:335565312 (160,01 GIB 171,81 GB) > Used Dev Size:167782656 (80,01 GIB 85,90 GB) > Super Offset:167782840 sectors > State:active > Device UUID:0a1c2c74:04b9187f:6ab6b5cb:894d8b38 > Internal Bimap:-81 sectos from superblock > Update Time:Tue Oct 19 15:49:08 2010 > Checksum:d8faadc0 - correct > Events:893 > Layout:left-asymmetric > Chunk Size:128K > Array Slot:0 (0, 1, failed, 2) > Array State:Uuu 1 failed > > ----------------------------------------------------------------------------------------------------------------------------------- > > mdadm --examine-bitmap /dev/sd[abc]2 > > Filename /dev/sda2 > > Magic 6d746962 > Version 4 > UUID ae9bd4fe:994ce882:4fa035e6:8094fc1a > Events 892 > Events Cleared 892 > State Out of date > Chunksize 256KB > Daemon 5s flush period > Write Mode Normal > Sync Size 83891328 (80,01 GIB 85,90 GB) > Bitmap 327701 BITS (CHUNKS), 325633 DIRTY (99,4%) > > Filename /dev/sdb2 > > Magic 6d746962 > Version 4 > UUID ae9bd4fe:994ce882:4fa035e6:8094fc1a > Events 892 > Events Cleared 892 > State Out of date > Chunksize 256KB > Daemon 5s flush period > Write Mode Normal > Sync Size 83891328 (80,01 GIB 85,90 GB) > Bitmap 327701 BITS (CHUNKS), 325633 DIRTY (99,4%) > > Filename /dev/sdc2 > Magic 6d746962 > Version 4 > UUID ae9bd4fe:994ce882:4fa035e6:8094fc1a > events 892 > Events Cleared 892 > > State Out of date > Chunksize 256 KB > Daemon 5s flush period > Write Mode Normal > Sync Size 83891328 (80,01 GIB 85,90 GB) > Bitmap 327701 BITS (CHUNKS), 325633 DIRTY (99,4%) > > ----------------------------------------------------------------------------------------------------------------------------------- > > cat /sys/bplock/md0/md/array_state > > inactive > > > cat /sys/block/md0/md/degraded > > cat /sys/block/md0/md/degraded: No such file or directory > > > cat /sys/block/md0/md/dev-sda2/errors > > 0 > > cat /sys/block/md0/md/dev-sda2/state > > in_sync > > > cat /sys/block/md0/md/dev-sdb2/errors > > 24 > > > cat /sys/block/md0/md/dev-sdb2/state > > in_sync > > > cat /sys/block/md0/md/dev-sdc2/errors > > 0 > > > cat /sys/block/md0/md/dev-sdc2/state > > in_sync > ----------------------------------------------------------------------------------------------------------------------------------- > > Thanks in advance. > > -- > Jesus Bermudez Riquelme > > > Iten, S.L. > -- > 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 > -- Janek Kozicki http://janek.kozicki.pl/ | -- 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
