Wondering if someone could take a look at my diagnostic output and give me an idea of what is going on and how I could fix this? It just started happening last night, both times mid Plex stream. I was forced to restart earlier today and everything seemed ok but it just happened again.

 

Thanks!

tower-diagnostics-20181125-2151.zip

There are problems with your cache device, SMART looks clean so start by replacing cables, docker image might need to be recreated.

Ya I caved in late last night and recreated the docker image. That corrected the error, but yes I agree something is up with the cache drive (it's a fairly old drive). I might swap it out for a new drive and replace the cable while I'm at it. 

 

For reference and future people that may stumble on this thread, the error line started with "BTRFS error (device loop2)". You can see the full log in the zip. It repeated over time and was definitely related to my docker image (Plex in this case). I was able to fix it by recreating the image, but I did so on a different drive. As I said above, I will be replacing the drive in question along with the cable just to be safe. It's time to retire that drive anyway.

 

Thanks for looking into it!