Re: Help needed: array inactive after grow attempt
From: Andread Mayrhoff <hidden>
Date: 2016-04-28 20:02:39
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...quoted
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" returnedquoted
quoted
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: <none> << mdadm --detail /dev/md127 returnsquoted
quoted
/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