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Bare-metal single disk Xpenology machine 6.2.3 randomly crashed (even after reboot)


loris_tecnology

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hi everyone

@flyride

 

i hope some kind souls can help me.
I have a xpenology machine with a single ironwolf nas drive with btrfs filesystem. Yesterday it crashed, only thing i've done before has been restarting a docker container.
Saw some situation where the data could be accessed read-only, no luck here, even file station doesn't see any files.
I desperately need to copy a personal encrypted folder off of it and i don't have backups. I saw some threads but they leads to nothing cause I can't loose any data. My hope is to force remounting the volume since the hd seems fine or learn a way to copy files off from a live usb or windows pc.

I am running DSM 6.2.3-25426 Update 2

 

if someone knows how to retrieve the data i would really appreciate

I've already tried synologyCloudSyncDecryptionTool but on Windows it can't detect the drive, probably because Windows can't read BTRFS

 

 

Some screenshots that could help

all logs i could find were older than the date of the accident.

 

image.png.06a305a2b8b19993a20c0519393f7bb2.png

image.png.832f2a5cf72afdca9d9bc488c80a91b4.png

image.png.4b289ddb8c4928d68c95e3b10edf030a.png

 

 

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Not much posted here to be useful, plus you have no redundancy to work with.

 

You need to know the mount device for your filesystem.

 

# cat /etc/fstab

 

The line with /volume1 should tell you the mount device.  I expect it to be /dev/md2 but you need to verify this on your own system.

 

If it is /dev/vgXXX then you need to investigate the status of your LVM volume group:

https://xpenology.com/forum/topic/14337-volume-crash-after-4-months-of-stability/?do=findComment&comment=107934

 

If it is /dev/mdX then you can attempt some data recovery commands by following the thread starting here (ignore vgchange commands as they won't apply to you):

https://xpenology.com/forum/topic/14337-volume-crash-after-4-months-of-stability/?do=findComment&comment=107979

 

You should be prepared to add another drive or USB mounted device equal to or larger than your volume as a target for the recovered data.

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some logs

what the best way to do a disk backup?

is there any other thing i could try in order to fix DSM?

 

Spoiler

Could not chdir to home directory /var/services/homes/user: No such file or directory
user@NASxpenology:/$ cat /etc/fstab
none /proc proc defaults 0 0
/dev/root / ext4 defaults 1 1
/dev/md2 /volume1 btrfs auto_reclaim_space,synoacl,relatime 0 0
user@NASxpenology:/$ sudo mount /dev/md2 /volume1
Password:
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o clear_cache /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o recovery /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.

Could not chdir to home directory /var/services/homes/user: No such file or directory
user@NASxpenology:/$ cat /etc/fstab
none /proc proc defaults 0 0
/dev/root / ext4 defaults 1 1
/dev/md2 /volume1 btrfs auto_reclaim_space,synoacl,relatime 0 0
user@NASxpenology:/$ sudo mount /dev/md2 /volume1
Password:
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o clear_cache /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o recovery /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$

user@NASxpenology:/var/log$ sudo btrfs-find-root /dev/md2
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
Ignoring transid failure
leaf parent key incorrect 50020352
Superblock thinks the generation is 424016
Superblock thinks the level is 1
Found tree root at 211992576 gen 424016 level 1
Well block 210386944(gen: 424014 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 203833344(gen: 424013 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 203374592(gen: 424012 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202801152(gen: 424011 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202604544(gen: 424010 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202457088(gen: 424009 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 201719808(gen: 424008 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 201129984(gen: 424006 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 200785920(gen: 424005 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 194199552(gen: 423994 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 188334080(gen: 423989 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 188022784(gen: 423988 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 187105280(gen: 423985 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 185319424(gen: 423984 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 184844288(gen: 423983 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 183320576(gen: 423982 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 182534144(gen: 423980 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 181452800(gen: 423979 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 160661504(gen: 423978 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 160956416(gen: 423976 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 148357120(gen: 423975 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 144064512(gen: 423974 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143851520(gen: 423973 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143310848(gen: 423972 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143228928(gen: 423972 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 134725632(gen: 423971 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 125190144(gen: 423968 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 120340480(gen: 423967 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118538240(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118505472(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118456320(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 109051904(gen: 423963 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 103432192(gen: 423962 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 103366656(gen: 423961 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 101744640(gen: 423960 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 99729408(gen: 423959 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 99483648(gen: 423958 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 98140160(gen: 423957 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 97763328(gen: 423956 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95469568(gen: 423955 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95223808(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95207424(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95027200(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 92864512(gen: 423953 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 91242496(gen: 423952 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 90865664(gen: 423951 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 90849280(gen: 423951 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 88195072(gen: 423950 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 86540288(gen: 423948 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 86392832(gen: 423946 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 83312640(gen: 423945 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 82280448(gen: 423943 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 82247680(gen: 423943 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 79167488(gen: 423942 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 74907648(gen: 423941 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 72630272(gen: 423937 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 69042176(gen: 423933 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 68091904(gen: 423932 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 66240512(gen: 423931 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 64012288(gen: 423930 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 96681984(gen: 423928 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 79708160(gen: 423920 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 61341696(gen: 423912 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 59621376(gen: 423911 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 58785792(gen: 423910 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 57327616(gen: 423909 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 56213504(gen: 423908 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 55328768(gen: 423907 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 46137344(gen: 423905 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 42663936(gen: 423904 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 40697856(gen: 423903 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 34258944(gen: 423902 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 33996800(gen: 423901 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 32964608(gen: 423900 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 60112896(gen: 421457 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 33521664(gen: 339094 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 32718848(gen: 339093 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1

Could not chdir to home directory /var/services/homes/user: No such file or directory
user@NASxpenology:/$ cat /etc/fstab
none /proc proc defaults 0 0
/dev/root / ext4 defaults 1 1
/dev/md2 /volume1 btrfs auto_reclaim_space,synoacl,relatime 0 0
user@NASxpenology:/$ sudo mount /dev/md2 /volume1
Password:
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o clear_cache /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$ sudo mount -o recovery /dev/md2 /volume1
mount: wrong fs type, bad option, bad superblock on /dev/md2,
       missing codepage or helper program, or other error

       In some cases useful info is found in syslog - try
       dmesg | tail or so.
user@NASxpenology:/$

user@NASxpenology:/var/log$ sudo btrfs-find-root /dev/md2
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
parent transid verify failed on 50020352 wanted 423906 found 421454
Ignoring transid failure
leaf parent key incorrect 50020352
Superblock thinks the generation is 424016
Superblock thinks the level is 1
Found tree root at 211992576 gen 424016 level 1
Well block 210386944(gen: 424014 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 203833344(gen: 424013 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 203374592(gen: 424012 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202801152(gen: 424011 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202604544(gen: 424010 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 202457088(gen: 424009 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 201719808(gen: 424008 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 201129984(gen: 424006 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 200785920(gen: 424005 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 194199552(gen: 423994 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 188334080(gen: 423989 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 188022784(gen: 423988 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 187105280(gen: 423985 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 185319424(gen: 423984 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 184844288(gen: 423983 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 183320576(gen: 423982 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 182534144(gen: 423980 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 181452800(gen: 423979 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 160661504(gen: 423978 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 160956416(gen: 423976 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 148357120(gen: 423975 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 144064512(gen: 423974 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143851520(gen: 423973 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143310848(gen: 423972 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 143228928(gen: 423972 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 134725632(gen: 423971 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 125190144(gen: 423968 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 120340480(gen: 423967 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118538240(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118505472(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 118456320(gen: 423964 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 109051904(gen: 423963 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 103432192(gen: 423962 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 103366656(gen: 423961 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 101744640(gen: 423960 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 99729408(gen: 423959 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 99483648(gen: 423958 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 98140160(gen: 423957 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 97763328(gen: 423956 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95469568(gen: 423955 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95223808(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95207424(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 95027200(gen: 423954 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 92864512(gen: 423953 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 91242496(gen: 423952 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 90865664(gen: 423951 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 90849280(gen: 423951 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 88195072(gen: 423950 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 86540288(gen: 423948 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 86392832(gen: 423946 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 83312640(gen: 423945 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 82280448(gen: 423943 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 82247680(gen: 423943 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 79167488(gen: 423942 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 74907648(gen: 423941 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 72630272(gen: 423937 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 69042176(gen: 423933 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 68091904(gen: 423932 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 66240512(gen: 423931 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 64012288(gen: 423930 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 96681984(gen: 423928 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 79708160(gen: 423920 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 61341696(gen: 423912 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 59621376(gen: 423911 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 58785792(gen: 423910 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 57327616(gen: 423909 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 56213504(gen: 423908 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 55328768(gen: 423907 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 46137344(gen: 423905 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 42663936(gen: 423904 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 40697856(gen: 423903 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 34258944(gen: 423902 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 33996800(gen: 423901 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 32964608(gen: 423900 level: 1) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 60112896(gen: 421457 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 33521664(gen: 339094 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
Well block 32718848(gen: 339093 level: 0) seems good, but generation/level doesn't match, want gen: 424016 level: 1
user@NASxpenology:/var/log$ sudo btrfs insp dump-s -f /dev/md2
superblock: bytenr=65536, device=/dev/md2
---------------------------------------------------------
csum                    0xd418ed39 [match]
bytenr                  65536
flags                   0x1
                        ( WRITTEN )
magic                   _BHRfS_M [match]
fsid                    b9fab812-b7e3-4ab2-a8b7-622aad110628
label                   2020.06.24-14:01:23 v15047
generation              424016
root                    211992576
sys_array_size          129
chunk_root_generation   340564
root_level              1
chunk_root              20971520
chunk_root_level        1
log_root                0
log_root_transid        0
log_root_level          0
total_bytes             3995849261056
bytes_used              3435586379776
sectorsize              4096
nodesize                16384
leafsize                16384
stripesize              4096
root_dir                6
num_devices             1
compat_flags            0x8000000000000000
compat_ro_flags         0x0
incompat_flags          0x16b
                        ( MIXED_BACKREF |
                          DEFAULT_SUBVOL |
                          COMPRESS_LZO |
                          BIG_METADATA |
                          EXTENDED_IREF |
                          SKINNY_METADATA )
csum_type               0
csum_size               4
cache_generation        9
uuid_tree_generation    424016
dev_item.uuid           6bf9953d-728f-4526-8bad-91f465681747
dev_item.fsid           b9fab812-b7e3-4ab2-a8b7-622aad110628 [match]
dev_item.type           0
dev_item.total_bytes    3995849261056
dev_item.bytes_used     3798259793920
dev_item.io_align       4096
dev_item.io_width       4096
dev_item.sector_size    4096
dev_item.devid          1
dev_item.dev_group      0
dev_item.seek_speed     0
dev_item.bandwidth      0
dev_item.generation     0
sys_chunk_array[2048]:
        item 0 key (FIRST_CHUNK_TREE CHUNK_ITEM 20971520)
                chunk length 8388608 owner 2 stripe_len 65536
                type SYSTEM|DUP num_stripes 2
                        stripe 0 devid 1 offset 20971520
                        dev uuid: 6bf9953d-728f-4526-8bad-91f465681747
                        stripe 1 devid 1 offset 29360128
                        dev uuid: 6bf9953d-728f-4526-8bad-91f465681747
backup_roots[4]:
        backup 0:
                backup_tree_root:       210386944       gen: 424014     level: 1
                backup_chunk_root:      20971520        gen: 340564     level: 1
                backup_extent_root:     207945728       gen: 424014     level: 2
                backup_fs_root:         29573120        gen: 7  level: 0
                backup_dev_root:        33341440        gen: 423900     level: 1
                backup_csum_root:       212123648       gen: 424015     level: 2
                backup_total_bytes:     3995849261056
                backup_bytes_used:      3435586355200
                backup_num_devices:     1

        backup 1:
                backup_tree_root:       216170496       gen: 424015     level: 1
                backup_chunk_root:      20971520        gen: 340564     level: 1
                backup_extent_root:     215023616       gen: 424015     level: 2
                backup_fs_root:         29573120        gen: 7  level: 0
                backup_dev_root:        33341440        gen: 423900     level: 1
                backup_csum_root:       214564864       gen: 424015     level: 2
                backup_total_bytes:     3995849261056
                backup_bytes_used:      3435586379776
                backup_num_devices:     1

        backup 2:
                backup_tree_root:       211992576       gen: 424016     level: 1
                backup_chunk_root:      20971520        gen: 340564     level: 1
                backup_extent_root:     212025344       gen: 424016     level: 2
                backup_fs_root:         29573120        gen: 7  level: 0
                backup_dev_root:        33341440        gen: 423900     level: 1
                backup_csum_root:       214564864       gen: 424015     level: 2
                backup_total_bytes:     3995849261056
                backup_bytes_used:      3435586379776
                backup_num_devices:     1

        backup 3:
                backup_tree_root:       203833344       gen: 424013     level: 1
                backup_chunk_root:      20971520        gen: 340564     level: 1
                backup_extent_root:     203718656       gen: 424013     level: 2
                backup_fs_root:         29573120        gen: 7  level: 0
                backup_dev_root:        33341440        gen: 423900     level: 1
                backup_csum_root:       204963840       gen: 424014     level: 2
                backup_total_bytes:     3995849261056
                backup_bytes_used:      3435612708864
                backup_num_devices:     1


 

 

Edited by loris_tecnology
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Update and recap

 

 

Hi
I have a custom Synology Nas with DSM and xpenology

So far so good
Until 1 week ago when all the issues started
I've restarted a docker container 
No big deal until this
When the Nas restarted I've seen that the disk was unavailable and the "volume 1" has crashed
If you check on smart everything seems fine

I've tried basically anything I could fine online and didn't fix the issue

Now I bought a new external drive cause it's cheap and before trying anything else I want to back my "kinda working" Nas drive

How can I do that?
A cloning? 

Also another issue
A folder on this disk is encrypted and I have the key to decrypt with a program provided by Synology

 

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