clean, degraded RAID 1

hugosbnarciso · 16. April 2020

Hi,

Appreciate the help:

- 2x 4TB drives

- nothing happened that i noticed

Code

root@openmediavault:~# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] 
md127 : active raid1 sdd[0]
      3906853888 blocks super 1.2 [2/1] [U_]
      bitmap: 30/30 pages [120KB], 65536KB chunk

unused devices: <none>

Code

root@openmediavault:~# blkid
/dev/sda1: UUID="38EC-4DD5" TYPE="vfat" PARTUUID="a4ffb382-ab07-416b-8b88-9a81a3a9db3e"
/dev/sda2: UUID="55403dd9-1a71-4592-bbcc-e8d7774a3d06" TYPE="ext4" PARTUUID="bfd6acb8-ca99-4a5a-bb2c-6f3c57c0f42e"
/dev/sda3: UUID="9b9c704d-2c99-499f-af58-8b20f816a001" TYPE="swap" PARTUUID="33789a09-8a18-46cc-908f-b0cfd7c80734"
/dev/sdb1: LABEL="PLEX" UUID="71415c3d-5a68-44be-9542-6565e6606ee7" TYPE="ext4" PARTUUID="f4a30c97-8472-4acc-aa20-9a30fddcd178"
/dev/sdc: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="8dd942bd-1465-781c-28d7-48a9eea125f2" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"
/dev/md127: LABEL="RAID1" UUID="42cf8915-99d2-4173-82ca-0a4daafdf833" TYPE="ext4"
/dev/sdd: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="f0fa487a-ac9f-a9df-5e8e-7aa4c1fe6c04" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"

Code

root@openmediavault:~# blkid
/dev/sda1: UUID="38EC-4DD5" TYPE="vfat" PARTUUID="a4ffb382-ab07-416b-8b88-9a81a3a9db3e"
/dev/sda2: UUID="55403dd9-1a71-4592-bbcc-e8d7774a3d06" TYPE="ext4" PARTUUID="bfd6acb8-ca99-4a5a-bb2c-6f3c57c0f42e"
/dev/sda3: UUID="9b9c704d-2c99-499f-af58-8b20f816a001" TYPE="swap" PARTUUID="33789a09-8a18-46cc-908f-b0cfd7c80734"
/dev/sdb1: LABEL="PLEX" UUID="71415c3d-5a68-44be-9542-6565e6606ee7" TYPE="ext4" PARTUUID="f4a30c97-8472-4acc-aa20-9a30fddcd178"
/dev/sdc: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="8dd942bd-1465-781c-28d7-48a9eea125f2" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"
/dev/md127: LABEL="RAID1" UUID="42cf8915-99d2-4173-82ca-0a4daafdf833" TYPE="ext4"
/dev/sdd: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="f0fa487a-ac9f-a9df-5e8e-7aa4c1fe6c04" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"
root@openmediavault:~# 
root@openmediavault:~# fdisk -l | grep "Disk "
Disk /dev/sda: 465.8 GiB, 500107862016 bytes, 976773168 sectors
Disk identifier: 4FB2D58E-D1C4-4DEE-B6F3-E88615B99BCE
Disk /dev/sdb: 931.5 GiB, 1000204886016 bytes, 1953525168 sectors
Disk identifier: 1E86B919-A59A-4D00-A4FC-3F7DCAE960AC
Disk /dev/sdc: 3.7 TiB, 4000752599040 bytes, 7813969920 sectors
Disk /dev/sdd: 3.7 TiB, 4000752599040 bytes, 7813969920 sectors
Disk /dev/md127: 3.7 TiB, 4000618381312 bytes, 7813707776 sectors

Alles anzeigen

Code

root@openmediavault:~# 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

Alles anzeigen

Code

root@openmediavault:~# mdadm --detail --scan --verbose
ARRAY /dev/md/Raid1 level=raid1 num-devices=2 metadata=1.2 name=openmediavault:Raid1 UUID=a57ef73c:759d036a:ee62ecdb:7aa0ac7d
   devices=/dev/sdd

Windowseat · 16. April 2020

These are the 2 drives in your raid;

Code

/dev/sdc: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="8dd942bd-1465-781c-28d7-48a9eea125f2" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"

/dev/md127: LABEL="RAID1" UUID="42cf8915-99d2-4173-82ca-0a4daafdf833" TYPE="ext4"

/dev/sdd: UUID="a57ef73c-759d-036a-ee62-ecdb7aa0ac7d" UUID_SUB="f0fa487a-ac9f-a9df-5e8e-7aa4c1fe6c04" LABEL="openmediavault:Raid1" TYPE="linux_raid_member"

But it only sees one:

Code

ARRAY /dev/md/Raid1 level=raid1 num-devices=2 metadata=1.2 name=openmediavault:Raid1 UUID=a57ef73c:759d036a:ee62ecdb:7aa0ac7d
   devices=/dev/sdd

sdc is probably disconnected or has no power... that is what I would check first. Reconnect all the wires and check again.

hugosbnarciso · 17. April 2020

Hi,

Thank you for your reply. It seems the HDD is connected.

Code

root@openmediavault:~# lsusb
Bus 002 Device 005: ID 1058:25e2 Western Digital Technologies, Inc. My Passport (WD40NMZW)
Bus 002 Device 004: ID 1058:25e2 Western Digital Technologies, Inc. My Passport (WD40NMZW)
Bus 002 Device 003: ID 2537:1068  
Bus 002 Device 002: ID 2109:0813 VIA Labs, Inc. 
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 06cb:00a2 Synaptics, Inc. 
Bus 001 Device 004: ID 04f2:b604 Chicony Electronics Co., Ltd Integrated Camera (1280x720@30)
Bus 001 Device 002: ID 2109:2813 VIA Labs, Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

geaves · 17. April 2020

Zitat von hugosbnarciso

It seems the HDD is connected.

This is a USB raid then, what version of OMV

hugosbnarciso · 17. April 2020

geaves · 17. April 2020

That tells me it's OMV4, you could have just typed that

But the raid is set up using USB drives?

hugosbnarciso · 17. April 2020

yes, that's correct.

geaves · 17. April 2020

Zitat von hugosbnarciso

yes, that's correct.

Then I suggest you look at this thread

hugosbnarciso · 17. April 2020

thank you i'll check and i'll update this thread if it worked.

clean, degraded RAID 1

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