From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andread Mayrhoff Subject: Re: Help needed: array inactive after grow attempt Date: Thu, 28 Apr 2016 22:02:39 +0200 Message-ID: References: <1d5a8c36a6802a9e7e32eb056165f200@spoilbase.eu> <7cfbdd22b8c20acdb95fababfa1a04a6@spoilbase.eu> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <7cfbdd22b8c20acdb95fababfa1a04a6@spoilbase.eu> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids Some more info: /dev/sdb1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : 1f97ccdb:5d734f5a:69ec1e62:4b767bd1 Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : 9cee067c - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 0 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdc1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : c0d6ef32:c96f2287:c28a747e:3dd7ac5e Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : ca6b41e2 - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 1 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdd1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : 935f90f7:4b0dc9d7:f66aa9d6:20d11f62 Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : 3b5a4242 - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 2 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sde1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : 8a681fff:9c9fea74:5fa541e0:d3903bfe Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : 85bed7a3 - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 3 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdf1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : 7ab63bf4:aaf2b5fb:7e4ced0f:5942004e Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : 8116d149 - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 4 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) /dev/sdg1: Magic : a92b4efc Version : 1.0 Feature Map : 0x5 Array UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e Name : n54l:raid5.11111111.eu Creation Time : Sat Aug 31 10:09:28 2013 Raid Level : raid5 Raid Devices : 6 Avail Dev Size : 5859448552 (2794.00 GiB 3000.04 GB) Array Size : 14648584960 (13969.98 GiB 15000.15 GB) Used Dev Size : 5859433984 (2794.00 GiB 3000.03 GB) Super Offset : 5859448816 sectors Unused Space : before=0 sectors, after=14816 sectors State : clean Device UUID : 49b2e0e8:dff3e0c7:15184780:0ff9f26d Internal Bitmap : -16 sectors from superblock Reshape pos'n : 0 Delta Devices : 1 (5->6) Update Time : Thu Apr 28 19:51:47 2016 Bad Block Log : 512 entries available at offset -8 sectors Checksum : d233509b - correct Events : 60868 Layout : left-symmetric Chunk Size : 128K Device Role : Active device 5 Array State : AAAAAA ('A' == active, '.' == missing, 'R' == replacing) > I might add > > ~/tmp # mdadm --stop /dev/md127 > mdadm: stopped /dev/md127 > ~/tmp # mdadm --assemble --scan > mdadm: Failed to restore critical section for reshape, sorry. > Possibly you needed to specify the --backup-file > > Thanks for helping me out of this... > >> Hello, >> >> I believe I need some help from an mdadm expert. >> >> I tried to add a disk to an existing RAID5-array (/dev/md127) that >> consisted of 5 disks: /dev/sd[bcdef]1 >> The system is a 4.5.2-2-kernel, x86_64-architecture, mdadm 3.3.1. >> I attempted to add partition /dev/sdg1 to that array, in an attempt to >> create a 6-disk-RAID5-array. >> To achieve that goal, I typed "mdadm --add /dev/md127 /dev/sdg1". >> As I found that working, I attempted to grow the array by typing >> "mdadm --grow /dev/md127 --raid-devices=6". >> >> I left my machine, and when I returned, I found it had been switched >> off by my... ahem, anyway, it had been switched off. >> >> I powered it on again, "cat /proc/mdstat" returned >> >>>> >> Personalities : [raid6] [raid5] [raid4] >> md127 : inactive sdg1[9](S) sdf1[8](S) sdc1[5](S) sdb1[6](S) >> sde1[4](S) sdd1[7](S) >> 17578345656 blocks super 1.0 >> >> unused devices: >> << >> >> mdadm --detail /dev/md127 returns >> >>>> >> /dev/md127: >> Version : 1.0 >> Raid Level : raid0 >> Total Devices : 6 >> Persistence : Superblock is persistent >> >> State : inactive >> >> Delta Devices : 1, (-1->0) >> New Level : raid5 >> New Layout : left-symmetric >> New Chunksize : 128K >> >> Name : n54l:raid5.11111111.eu >> UUID : b120f4d9:d1ba5648:e1359c5d:7a36372e >> Events : 60868 >> >> Number Major Minor RaidDevice >> >> - 8 17 - /dev/sdb1 >> - 8 33 - /dev/sdc1 >> - 8 49 - /dev/sdd1 >> - 8 65 - /dev/sde1 >> - 8 81 - /dev/sdf1 >> - 8 97 - /dev/sdg1 >> << >> >> Now, before I do anything extreme like unplugging that disk again or >> forcing a recreate, could an expert suggest the next logical step I >> should do. I know this sounds pretty defensive, but rather than >> playing "Raid-hero with an erased set of disks" I'd go along with >> "Raid-idiot that needed experts' advice which is why he still's got >> all his data". >> >> Thanks for your advice! >> >> >> >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-raid" >> in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html > > -- > To unsubscribe from this list: send the line "unsubscribe linux-raid" > in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html