The title says it all. 

Came back from (short ?) holidays and everything seemed fine but i tried accessing plex and it failed (any dockers in fact)

a few minutes later i discovered my "vm" disk (nvme0n1p1, which is also the appdata disk ...) is unmountable. On the main ui it appears as FS : Auto but looking around i ran : 

• 
  so it seems it was btrfs. 
• I also tried a check : 
   

I have no idea where i messed up or if it is recoverable. 

Please help me, i am not willing to redo all my configs ...

Of course, here is the diagnostic : kamuy-huci-diagnostics-20250307-2138.zip

Cache device failed:

 

=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: FAILED!
- media has been placed in read only mode

 

Thanks, the data must still be there !

 

You're right. The disk was not physically found. I stopped the server, removed and added it back again and it was picked up by unraid.

What should be the procedure ?

1. Putting it back on read / write mode ?

2. Using a fresh one, and copying everything on it ? (That'd be copy everything from failed onto array for temp storing purpose, by "mover", putting new one in and move back into new one) ?

 

For the records the failed disk is fairly new, I don't think it's life is over yet (I'd prefer not have to spend another 100€ right after holidays ... )

1 hour ago, Azarog said:

Putting it back on read / write mode ?

You cannot put it back in write mode, it failed, you can try to mount it read only to recover the data if there are no backups:

 

https://forums.unraid.net/topic/46802-faq-for-unraid-v6/page/2/#findComment-543490

 

 

Thank you for your fast reply ! 
will do, thanks

Hi @JorgeB,

Im in the process of recovering but i hit a wall.

out of 3 main shares that were on the faulty drive :

1. appdata has been copied to the array
2. domains has been a failure (i guess it's my mistake, all the disks are 0 B)
3. system has been copied to the array

Now i want to resume operation (slower while waiting for the new drive to come in) it'll live on the array.

I recreated the previous shares and rsync everything to it's place (from the backup share i created for that purpose) and that's where i may have messed up the domains.

However when trying to start docker i have an issue related to loop2 i guess 

What did i do wrong and what are my next steps ? 

 

Here is the up-to-date diag : 

kamuy-huci-diagnostics-20250309-1045.zip

You can just recreate the docker image:

https://docs.unraid.net/unraid-os/manual/docker-management/#re-create-the-docker-image-file
Then:
https://docs.unraid.net/unraid-os/manual/docker-management/#re-installing-docker-applications
Also see below if you have any custom docker networks:
https://docs.unraid.net/unraid-os/manual/docker-management/#docker-custom-networks

my impatient ass ended up doing exactly that (i was worried because the previous app was greyed out, due to docker not started)

 

ill have to do the same for libvrt, which is reset to scratch anyways

 

thanks for the fast reply