I installed OMV 4 then installed the two hard drives from my OMV 2 setup. The array is showing as "Clean, degraded" and as not referenced in file systems
As per Ryecoaaron's pinned post these are the results
Code
root@openmediavault4:~# cat /proc/mdstat
Personalities : [raid1] [linear] [multipath] [raid0] [raid6] [raid5] [raid4] [raid10]
md0 : active raid1 sdb[3]
3906887512 blocks super 1.2 [2/1] [U_]
unused devices: <none>
Code
root@openmediavault4:~# blkid
/dev/sda1: UUID="9c027e68-f918-49e3-9ac2-37aeaee29b65" TYPE="ext4" PARTUUID="5bee4900-01"
/dev/sda5: UUID="d98defca-152d-4e92-95c2-c2547c3d9690" TYPE="swap" PARTUUID="5bee4900-05"
/dev/sdb: UUID="fd471f90-e163-c3bf-d249-93bf31acde0d" UUID_SUB="f3dc6c25-8d99-ac1f-e0bd-603ed9f059b2" LABEL="openmediavault:0" TYPE="linux_raid_member"
/dev/md0: LABEL="RAID1" UUID="34e16d51-a142-4c14-a13a-befbf6e378a1" TYPE="ext4"
/dev/sdc: UUID="fd471f90-e163-c3bf-d249-93bf31acde0d" UUID_SUB="5c30ba87-57bb-5a55-4ca4-e146a1be83e5" LABEL="openmediavault:0" TYPE="linux_raid_member"
Code
root@openmediavault4:~# fdisk -l | grep "Disk "
Disk /dev/sda: 186.3 GiB, 200049647616 bytes, 390721968 sectors
Disk identifier: 0x5bee4900
Disk /dev/sdb: 3.7 TiB, 4000787030016 bytes, 7814037168 sectors
Disk /dev/sdc: 7.3 TiB, 8001563222016 bytes, 15628053168 sectors
Disk /dev/md0: 3.7 TiB, 4000652812288 bytes, 7813775024 sectors
Code
root@openmediavault4:~# 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@openmediavault4:~# mdadm --detail --scan --verbose
ARRAY /dev/md/0 level=raid1 num-devices=2 metadata=1.2 name=openmediavault:0 UUID=fd471f90:e163c3bf:d24993bf:31acde0d
devices=/dev/sdb
The Drives are both WD Red