Like topic says, I updated from 6.12.8 to 6.12.9 and now I get this message on my dockers:
 

Docker Service failed to start.

 

Attached is my diognostics

I would appreciate all help

tower-diagnostics-20240329-2118.zip

The syslog in the diagnostics is full of errors relating to the cache drive which is probably why the docker service is not starting.    I would suggest starting by running check filesystem on that pool.

I can only do it on Cache, not Cache 2 (they are mirror)

I get this:
 

[1/7] checking root items

[2/7] checking extents

[3/7] checking free space tree

[4/7] checking fs roots

[5/7] checking only csums items (without verifying data)

[6/7] checking root refs

[7/7] checking quota groups skipped (not enabled on this FS) Opening filesystem to check... Checking filesystem on /dev/nvme0n1p1 UUID: 7928d4a8-c447-4027-8952-2e27c43e51a9 found 511549218816 bytes used, no error found total csum bytes: 401640012 total tree bytes: 1649328128 total fs tree bytes: 993787904 total extent tree bytes: 166559744 btree space waste bytes: 372308360 file data blocks allocated: 1470746066944 referenced 495950946304

I do have the appdata backup plugin and backed up last time 25th of Mars
Should I restore that?

Just now, flokason said:

I do have the appdata backup plugin and backed up last time 25th of Mars
Should I restore that?

Not sure.    Might be worth waiting to see if @JorgeB had an ideas.

I think I have to format and start from scratch on my cahce drives

 

root@Tower:~# btrfs dev stats /mnt/cache
[/dev/nvme0n1p1].write_io_errs    296591154
[/dev/nvme0n1p1].read_io_errs     454910
[/dev/nvme0n1p1].flush_io_errs    1525783
[/dev/nvme0n1p1].corruption_errs  16434475
[/dev/nvme0n1p1].generation_errs  13247
[/dev/nvme1n1p1].write_io_errs    0
[/dev/nvme1n1p1].read_io_errs     0
[/dev/nvme1n1p1].flush_io_errs    0
[/dev/nvme1n1p1].corruption_errs  0
[/dev/nvme1n1p1].generation_errs  0

I got kind of depressed, google something
Though I should delete everything from both of my cache drives and then restore it with appdata backup

Did those commands shown on screenshot

Dockers started to work

And hevy read/write on my cahce drive

I have literally know idea what it happening

11 hours ago, flokason said:

root@Tower:~# btrfs dev stats /mnt/cache
[/dev/nvme0n1p1].write_io_errs    296591154
[/dev/nvme0n1p1].read_io_errs     454910
[/dev/nvme0n1p1].flush_io_errs    1525783
[/dev/nvme0n1p1].corruption_errs  16434475
[/dev/nvme0n1p1].generation_errs  13247

 

This means one of the devices dropped offline in the past.

 

Post new diagnostics.

Thank you JorgeB

 

I would appreciate any advice so I can prevent this happening again, and perhaps knowing how to fix it if it happens again

 

Best regards

tower-diagnostics-20240330-1052.zip

Pool looks OK now, it was doing a balance, that would explain all the activity, I assume no more now?

 

See here for better pool monitoring, so you'd get notified if a device drops again:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&comment=700582

 

10 minutes ago, JorgeB said:

Pool looks OK now, it was doing a balance, that would explain all the activity, I assume no more now?

 

See here for better pool monitoring, so you'd get notified if a device drops again:

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/?do=findComment&comment=700582

 

Thank you for the help

 

Yes that activity is no more, it looks normal now

 

I will look up that pool monitoring, thank you