Error on cache drive pool, Unmountable: No file system. BTRFS: error, IO failure, Failed to recover log tree

[CorserMoon]

My Unraid server was non-responsive so I had to force reboot via IPMI. Upon reboot, I am getting the following error and the docker tab is showing no docker containers installed:

 

BTRFS: error (device nvme1n1p1) in btrfs_replay_log:2500: errno=-5 IO failure (Failed to recover log tree)

 

 

I came across THIS post which seems relevant but their error was slightly different. Thoughts on how to proceed? (diags attached)

 

EDIT: Here is another clue. The cache pool on which docker.img lives is showing unmountable:

 

corsermoon-diagnostics-20230615-1340.zip

Edited June 15, 2023 by CorserMoon

[JorgeB]

If the log tree is the only issue this may help:

 

btrfs rescue zero-log /dev/nvme1n1p1

 

Then re-start array.

[CorserMoon]

21 minutes ago, JorgeB said:

If the log tree is the only issue this may help:

 

btrfs rescue zero-log /dev/nvme1n1p1

 

Then re-start array.

Should I stop the array first before running this command?

[JorgeB]

You can run with the array running since the pool in not mounted.

[CorserMoon]

That did it. Thank you @JorgeB. 

[CorserMoon]

1 hour ago, JorgeB said:

You can run with the array running since the pool in not mounted.

Do you recommend running a scrub on the cache pool? 

[JorgeB]

You can run a scrub, also take the opportunity to make sure backups are up to date.

[zcranium]

This also worked for me.  Currently running the SCRUB and told it to fix errors if found.  

 

Thank you for the information!!