Having a simular issue to the one in this thread, however, slightly different, I believe.
We experienced a power outage this morning. Luckily the OMV server is on battery backup, so I was able to shut the server down. Once power was restored, I restarted the server and the RAID drive is Missing.
From what I can tell, during the reboot, a BIOS autorecovery setting applied GPT to 3 of my RAID drives, as seen in the blkid output below.
Looking for options to recover this system.
Thanks in advance for any assistance.
lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTS
sda 8:0 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdb 8:16 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdc 8:32 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdd 8:48 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sde 8:64 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdf 8:80 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdg 8:96 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdh 8:112 0 10.9T 0 disk
sdi 8:128 0 10.9T 0 disk
└─md0 9:0 0 0B 0 raid6
sdj 8:144 0 10.9T 0 disk
sdk 8:160 0 10.9T 0 disk
nvme0n1 259:0 0 476.9G 0 disk
├─nvme0n1p1 259:1 0 512M 0 part /boot/efi
├─nvme0n1p2 259:2 0 475.5G 0 part /var/folder2ram/var/cache/samba
│ /var/folder2ram/var/lib/monit
│ /var/folder2ram/var/lib/rrdcached
│ /var/folder2ram/var/spool
│ /var/lib/containers/storage/overlay
│ /var/folder2ram/var/lib/openmediavault/rrd
│ /var/folder2ram/var/tmp
│ /var/folder2ram/var/log
│ /
└─nvme0n1p3 259:3 0 976M 0 part [SWAP]
blkid
/dev/sdf: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="bde193d0-b68d-c1d5-11ed-5f8275a4a220" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/nvme0n1p3: UUID="2bb7348b-aa0a-42a1-af4b-f4ee684c78ba" TYPE="swap" PARTUUID="d804df87-8bf9-45bd-9cb5-da32f39fee2a"
/dev/nvme0n1p1: UUID="4647-262F" BLOCK_SIZE="512" TYPE="vfat" PARTUUID="8aa9ef68-1a9f-4d0e-a27b-afc72cc70946"
/dev/nvme0n1p2: UUID="82bb97eb-6acc-4de0-8361-09b220ad4041" BLOCK_SIZE="4096" TYPE="ext4" PARTUUID="537d3034-7576-44ea-a8e8-ccce3d33c1b8"
/dev/sdd: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="3017eba0-37a3-83ff-202c-dd24668b7223" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sdb: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="792c5ef1-7fb7-335c-6f63-b5a835548740" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sdi: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="ee6cdfb3-c66c-013a-0918-1573a1f32bfd" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sdg: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="711a8d42-424e-f6f6-9ff4-60cc2bee0cb9" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sde: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="8955e286-76c7-a860-7421-928527ed2f2e" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sdc: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="04f481c7-5f9f-d02b-a759-61d0b880c975" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sda: UUID="cbcc5712-da6b-1419-139a-de9757c7348b" UUID_SUB="8440a728-ed6c-82a2-bbcf-2b533cc73f22" LABEL="omvnas:0" TYPE="linux_raid_member"
/dev/sdk: PTUUID="5066a101-8bc4-412b-8c31-9989f6114efe" PTTYPE="gpt"
/dev/sdj: PTUUID="0543fe2c-2926-4428-a9bb-4d8478340340" PTTYPE="gpt"
/dev/sdh: PTUUID="bed11372-978a-482f-8eff-9d94f18c9b61" PTTYPE="gpt"
mdadm --detail /dev/md0
/dev/md0:
Version : 1.2
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Used Dev Size : 18446744073709551615
Raid Devices : 11
Total Devices : 8
Persistence : Superblock is persistent
Update Time : Thu Feb 6 05:21:31 2025
State : active, FAILED, Not Started
Active Devices : 8
Working Devices : 8
Failed Devices : 0
Spare Devices : 0
Layout : left-symmetric
Chunk Size : 512K
Consistency Policy : unknown
Name : omvnas:0 (local to host omvnas)
UUID : cbcc5712:da6b1419:139ade97:57c7348b
Events : 260594
Number Major Minor RaidDevice State
- 0 0 0 removed
- 0 0 1 removed
- 0 0 2 removed
- 0 0 3 removed
- 0 0 4 removed
- 0 0 5 removed
- 0 0 6 removed
- 0 0 7 removed
- 0 0 8 removed
- 0 0 9 removed
- 0 0 10 removed
- 8 64 2 sync /dev/sde
- 8 32 0 sync /dev/sdc
- 8 0 1 sync /dev/sda
- 8 80 9 sync /dev/sdf
- 8 48 4 sync /dev/sdd
- 8 16 3 sync /dev/sdb
- 8 128 5 sync /dev/sdi
- 8 96 7 sync /dev/sdg
cat /etc/mdadm/mdadm.conf
# This file is auto-generated by openmediavault (https://www.openmediavault.org)
# WARNING: Do not edit this file, your changes will get lost.
# mdadm.conf
#
# Please refer to mdadm.conf(5) for information about this file.
#
# by default, scan all partitions (/proc/partitions) for MD superblocks.
# alternatively, specify devices to scan, using wildcards if desired.
# Note, if no DEVICE line is present, then "DEVICE partitions" is assumed.
# To avoid the auto-assembly of RAID devices a pattern that CAN'T match is
# used if no RAID devices are configured.
DEVICE partitions
# auto-create devices with Debian standard permissions
CREATE owner=root group=disk mode=0660 auto=yes
# automatically tag new arrays as belonging to the local system
HOMEHOST <system>
# definitions of existing MD arrays
ARRAY /dev/md0 metadata=1.2 name=omvnas:0 UUID=cbcc5712:da6b1419:139ade97:57c7348b
cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md0 : inactive sdi[5](S) sde[2](S) sdg[6](S) sdf[7](S) sdd[4](S) sda[1](S) sdc[0](S) sdb[3](S)
93750140928 blocks super 1.2
unused devices: <none>
mdadm --examine /dev/sd[a-k]
/dev/sda:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 8440a728:ed6c82a2:bbcf2b53:3cc73f22
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : aa6cf6bd - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 1
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdb:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 792c5ef1:7fb7335c:6f63b5a8:35548740
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : a0a64df4 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 3
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdc:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 04f481c7:5f9fd02b:a75961d0:b880c975
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : a3552017 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 0
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdd:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 3017eba0:37a383ff:202cdd24:668b7223
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : 52962446 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 4
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sde:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 8955e286:76c7a860:74219285:27ed2f2e
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : 524ddf1 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 2
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdf:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : bde193d0:b68dc1d5:11ed5f82:75a4a220
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : b32fb355 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 9
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdg:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : 711a8d42:424ef6f6:9ff460cc:2bee0cb9
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : 28c8fdd9 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 7
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdh:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
/dev/sdi:
Magic : a92b4efc
Version : 1.2
Feature Map : 0x1
Array UUID : cbcc5712:da6b1419:139ade97:57c7348b
Name : omvnas:0 (local to host omvnas)
Creation Time : Sun Sep 3 15:35:48 2023
Raid Level : raid6
Raid Devices : 11
Avail Dev Size : 23437535232 sectors (10.91 TiB 12.00 TB)
Array Size : 105468811776 KiB (98.23 TiB 108.00 TB)
Used Dev Size : 23437513728 sectors (10.91 TiB 12.00 TB)
Data Offset : 235520 sectors
Super Offset : 8 sectors
Unused Space : before=235440 sectors, after=21504 sectors
State : clean
Device UUID : ee6cdfb3:c66c013a:09181573:a1f32bfd
Internal Bitmap : 8 sectors from superblock
Update Time : Thu Feb 6 05:21:31 2025
Bad Block Log : 512 entries available at offset 56 sectors
Checksum : c7f997b8 - correct
Events : 260594
Layout : left-symmetric
Chunk Size : 512K
Device Role : Active device 5
Array State : AAAAAAAAAAA ('A' == active, '.' == missing, 'R' == replacing)
/dev/sdj:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
/dev/sdk:
MBR Magic : aa55
Partition[0] : 4294967295 sectors at 1 (type ee)
