Hello,
I think I have a similar problem like in this Thread. I have converted from an original NAS Firmware (Zyxel NAS540) to OMV and very much love it. But there seems to be a problem with my backup storage (2 disk mounted in RAID1). Like in that other thread, the mount goes missing after every reboot. Possibly this could be corrected with the command, recommended in the other thread (mdadm --assemble --force --verbose /dev/md127 /dev/sd[bc]) however, I am not sure how to identfy the right parameters for my disk setup. Hopefully, you can help me identify the correct one?
General setup: 2 disks in JBOD (~3 TB) and 2 disks in RAID1 (~1 TB)
cat /proc/mdstat
Code
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md124 : active (auto-read-only) raid1 sdd3[2] sde3[1]
972631040 blocks super 1.2 [2/2] [UU]
md125 : active (auto-read-only) raid1 sdd1[4] sde1[5] sdb1[6] sdc1[7]
1997760 blocks super 1.2 [4/4] [UUUU]
md126 : active linear sdb3[0] sdc3[1]
3410653056 blocks super 1.2 64k rounding
md127 : active (auto-read-only) raid1 sdd2[4] sde2[5] sdc2[7] sdb2[6]
1998784 blocks super 1.2 [4/4] [UUUU]
unused devices: <none>
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fidsk -l
Code
Disk /dev/mtdblock0: 256 KiB, 262144 bytes, 512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock1: 512 KiB, 524288 bytes, 1024 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock2: 256 KiB, 262144 bytes, 512 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock3: 10 MiB, 10485760 bytes, 20480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock4: 10 MiB, 10485760 bytes, 20480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock5: 110 MiB, 115343360 bytes, 225280 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock6: 10 MiB, 10485760 bytes, 20480 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock7: 110 MiB, 115343360 bytes, 225280 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/mtdblock8: 6 MiB, 6291456 bytes, 12288 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk /dev/sdb: 2,7 TiB, 3000592982016 bytes, 5860533168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 27F344E2-5D59-4E28-9FA7-A417328C4FD3
Device Start End Sectors Size Type
/dev/sdb1 2048 3999743 3997696 1,9G Linux RAID
/dev/sdb2 3999744 7999487 3999744 1,9G Linux RAID
/dev/sdb3 7999488 5860532223 5852532736 2,7T Linux RAID
Disk /dev/sdc: 465,8 GiB, 500107862016 bytes, 976773168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: BC148F93-76F4-4266-8722-541A51661DD5
Device Start End Sectors Size Type
/dev/sdc1 2048 3999743 3997696 1,9G Linux RAID
/dev/sdc2 3999744 7999487 3999744 1,9G Linux RAID
/dev/sdc3 7999488 976773119 968773632 462G Linux RAID
Disk /dev/sdd: 931,5 GiB, 1000204886016 bytes, 1953525168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disklabel type: gpt
Disk identifier: 3D0D5519-9240-4186-9281-0D11AD5316C9
Device Start End Sectors Size Type
/dev/sdd1 2048 3999743 3997696 1,9G Linux RAID
/dev/sdd2 3999744 7999487 3999744 1,9G Linux RAID
/dev/sdd3 7999488 1953523711 1945524224 927,7G Microsoft basic data
Disk /dev/sda: 3,8 GiB, 4011851776 bytes, 7835648 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 62B79830-7F65-4C1C-A913-21F48B7A6919
Device Start End Sectors Size Type
/dev/sda1 2048 133119 131072 64M Microsoft basic data
/dev/sda2 133120 7833599 7700480 3,7G Linux filesystem
Disk /dev/sde: 1,4 TiB, 1500301910016 bytes, 2930277168 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 7FF734BD-8009-428A-8A40-840E386B9450
Device Start End Sectors Size Type
/dev/sde1 2048 3999743 3997696 1,9G Linux RAID
/dev/sde2 3999744 7999487 3999744 1,9G Linux RAID
/dev/sde3 7999488 2930276351 2922276864 1,4T Linux RAID
Disk /dev/md127: 1,9 GiB, 2046754816 bytes, 3997568 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md126: 3,2 TiB, 3492508729344 bytes, 6821306112 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md125: 1,9 GiB, 2045706240 bytes, 3995520 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/md124: 927,6 GiB, 995974184960 bytes, 1945262080 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/vg_91397867-vg_info_area: 100 MiB, 104857600 bytes, 204800 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
Disk /dev/mapper/vg_91397867-lv_e2115f28: 3,2 TiB, 3492399808512 bytes, 6821093376 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 4096 bytes / 4096 bytes
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/etc/mdadm/mdadm.conf
Code
# 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
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mdadm --detail --scan --verbose
Code
ARRAY /dev/md/NAS540:1 level=raid1 num-devices=4 metadata=1.2 name=NAS540:1 UUID=be845b0b:16569846:4e126787:3b8428a5
devices=/dev/sdb2,/dev/sdc2,/dev/sdd2,/dev/sde2
ARRAY /dev/md/myNAS:3 level=linear num-devices=2 metadata=1.2 name=myNAS:3 UUID=91397867:0f565677:98b16564:83e02aa4
devices=/dev/sdb3,/dev/sdc3
ARRAY /dev/md/NAS540:0 level=raid1 num-devices=4 metadata=1.2 name=NAS540:0 UUID=26a04d7d:2e5b784c:beabea5f:1aaca0e6
devices=/dev/sdb1,/dev/sdc1,/dev/sdd1,/dev/sde1
ARRAY /dev/md/myNAS:3_0 level=raid1 num-devices=2 metadata=1.2 name=myNAS:3 UUID=6e1f3bbb:6ba523e3:b34ea2f2:037e49db
devices=/dev/sdd3,/dev/sde3