Hello,
I recently found out that my RAID 5 as some issue as only 2 of the 3 disks are apparently being used.
All 3 are apparently recognized but i can't "repair" the RAID by addind the missing disk on the grape
I don't exactly know when this happened. I actually saw it while trying to get some Nextcloud plugin working on Docker i think.
At the same time I tried to apply updates but i had some error message about the disk my Docker container were on which would block the updates. This was about two months ago, i didn't have time to work on it.
Yesterday i took the time and decided to work on a fresh OMV. I installed it and started configuration. Updates worked fine, but the problem with the RAID remain.
It's working if i mount it, I would prefer to repair it before going further in my configurations...
So here are what I get from the commands :
cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md127 : active (auto-read-only) raid5 sdc[1] sdb[0]
5860270080 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/2] [UU_]
bitmap: 22/22 pages [88KB], 65536KB chunk
Alles anzeigen
blkid
/dev/sda1: UUID="2ef1dc7b-1703-475a-9482-bfe488560b4a" TYPE="ext4" PARTUUID="3c52c98d-01"
/dev/sda3: LABEL="Docker Disk" UUID="47c8493a-c1f6-4b84-b8b9-425bf0fb3154" TYPE="ext4" PARTUUID="3c52c98d-03"
/dev/sda5: UUID="88b6a16f-807f-447e-a416-c0b41c632cdc" TYPE="swap" PARTUUID="3c52c98d-05"
/dev/sdd: UUID="a635e782-9138-367c-1d14-9efe18c55a0c" UUID_SUB="c5fd7e5d-d361-5222-a0bc-4ac5077a14f9" LABEL="AlienNAS:AlienR5" TYPE="linux_raid_member"
/dev/sdc: UUID="a635e782-9138-367c-1d14-9efe18c55a0c" UUID_SUB="3151ac6a-03d3-ceb7-9e09-39e9a31175a1" LABEL="AlienNAS:AlienR5" TYPE="linux_raid_member"
/dev/md127: UUID="8cbb2c06-a2c0-4a8f-bf04-381cf8e9bc48" TYPE="ext4"
/dev/sdb: UUID="a635e782-9138-367c-1d14-9efe18c55a0c" UUID_SUB="36d89265-535a-3877-9fcf-75212503a3b9" LABEL="AlienNAS:AlienR5" TYPE="linux_raid_member"
fdisk -l | grep "Disk "
Disk /dev/sda: 223.6 GiB, 240057409536 bytes, 468862128 sectors
Disk identifier: 0x3c52c98d
Disk /dev/sdd: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Disk /dev/sdc: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Disk /dev/sdb: 2.7 TiB, 3000592982016 bytes, 5860533168 sectors
Disk /dev/md127: 5.5 TiB, 6000916561920 bytes, 11720540160 sectors
cat /etc/mdadm/mdadm.conf
# 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/md127 metadata=1.2 name=AlienNAS:AlienR5 UUID=a635e782:9138367c:1d149efe:18c55a0c
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mdadm --detail --scan --verbose
ARRAY /dev/md127 level=raid5 num-devices=3 metadata=1.2 name=AlienNAS:AlienR5 UUID=a635e782:9138367c:1d149efe:18c55a0c
devices=/dev/sdb,/dev/sdc
Any Idea of what is the problem and what i should do?
Thanks to anyone who can help me.