Everything was working fine on my NAS and suddenly the volume and storage pool disappeared, can't see my folders and files at all on the NAS.
But the folders and files are still there because I can mount and access them on my windows PC via SMB
Ran df and md_checker this is what I get
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[~] # df
Filesystem Size Used Available Use% Mounted on
none 400.0M 400.0M 0 100% /
devtmpfs 3.8G 8.0K 3.8G 0% /dev
tmpfs 64.0M 3.5M 60.5M 6% /tmp
tmpfs 3.9G 156.0K 3.9G 0% /dev/shm
tmpfs 16.0M 0 16.0M 0% /share
/dev/sdc5 7.8M 36.0K 7.8M 0% /mnt/boot_config
tmpfs 16.0M 0 16.0M 0% /mnt/snapshot/export
/dev/md9 499.5M 182.9M 316.6M 37% /mnt/HDA_ROOT
cgroup_root 3.9G 0 3.9G 0% /sys/fs/cgroup
/dev/mapper/cachedev1
7.0T 5.4T 1.6T 77% /share/CACHEDEV1_DATA
/dev/md13 417.0M 391.1M 25.9M 94% /mnt/ext
tmpfs 1.0M 4.0K 1020.0K 0% /share/external/.nd
tmpfs 1.0M 0 1.0M 0% /share/external/.cm
tmpfs 1.0M 0 1.0M 0% /mnt/hm/temp_mount
cmfs 3.5T 0 3.5T 0% /share/external/.cm/0/2115a656ef5a873085bffafb169530f91644e8e0
tmpfs 48.0M 64.0K 47.9M 0% /share/CACHEDEV1_DATA/.samba/lock/msg.lock
tmpfs 16.0M 0 16.0M 0% /mnt/ext/opt/samba/private/msg.sock
/dev/mapper/vg1-lv1312
740.9M 800.0K 740.2M 0% /mnt/pool1
/dev/mapper/vg1-snap10001
7.0T 5.4T 1.6T 77% /mnt/snapshot/1/10001
cmfs 3.5T 0 3.5T 0% /share/external/.cm/0/201aa596aef1a4e6f5f554f31c8725b10af16b5f
cmfs 3.5T 0 3.5T 0% /share/external/.cm/0/2216194bdbd84c041f8edcef0c4f3d76e950fc90
cmfs 3.5T 0 3.5T 0% /share/external/.cm/0/221870c5f62abe967edbb02adad1c70d9d548c0f
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Welcome to MD superblock checker (v2.0) - have a nice day~
Scanning system...
RAID metadata found!
UUID: cb57ff4e:bc8e9a01:3e4755b9:fc183de1
Level: raid1
Devices: 2
Name: md1
Chunk Size: -
md Version: 1.0
Creation Time: Jun 25 15:22:36 2018
Status: ONLINE (md1) [UU]
===============================================================================================
Enclosure | Port | Block Dev Name | # | Status | Last Update Time | Events | Array State
===============================================================================================
NAS_HOST 5 /dev/sda3 0 Active May 14 00:51:55 2021 441 AA
NAS_HOST 6 /dev/sdb3 1 Active May 14 00:51:55 2021 441 AA
===============================================================================================
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[~] # /etc/init.d/init_lvm.sh
Changing old config name...
mv: can't rename '/etc/config/qdrbd.conf': No such file or directory
mv: can't rename '/etc/config/raid.conf': No such file or directory
Reinitialing...
Detect disk(8, 16)...
dev_count ++ = 0Detect disk(253, 0)...
ignore non-root enclosure disk(253, 0).
Detect disk(8, 32)...
ignore non-root enclosure disk(8, 32).
Detect disk(8, 0)...
dev_count ++ = 1Detect disk(8, 16)...
Detect disk(253, 0)...
ignore non-root enclosure disk(253, 0).
Detect disk(8, 32)...
ignore non-root enclosure disk(8, 32).
Detect disk(8, 0)...
/bin/cat: /sys/bus/pci/devices/0000:00:01.0/0000:01:00.0/subsystem_vendor: No such file or directory
/bin/cat: /sys/bus/pci/devices/0000:00:01.0/0000:01:00.0/subsystem_vendor: No such file or directory
/bin/cat: /sys/bus/pci/devices/0000:00:1d.0/0000:09:00.0/subsystem_vendor: No such file or directory
/bin/cat: /sys/bus/pci/devices/0000:00:1d.0/0000:09:00.0/subsystem_vendor: No such file or directory
sys_startup_p2:got called count = -1
WARNING: duplicate PV 9wuAh3298yYs5BLmefcAsym0Wdfk0dRo is being used from both devices /dev/drbd1 and /dev/md1
Found duplicate PV 9wuAh3298yYs5BLmefcAsym0Wdfk0dRo: using /dev/drbd1 not /dev/md1
Using duplicate PV /dev/drbd1 from subsystem DRBD, ignoring /dev/md1
/etc/lvm/cache/.cache.tmp: write error failed: No space left on device
Done