My cache drive appears unmountable. Noticed it after a transient drop to UPS power and back. (no more than a few seconds.) Noticed a bunch of docker containers were down, and decided to reboot, which may have aggravated the issue.
I tried looking up similar cases, but in most it seems either disabling docker, deleting and restarting fixes it. OR the drive is just completely missing. In my case the drive still shows in the Main list as active. Actually spins down since it isn't mountable. Doesn't display any SMART errors. Raw UDMA CRC count of 123. I mean it's a Green spinner with 12+ years power on time. If it's on it's last leg I got my money's worth out of it. If only all drives were as reliable... And yes I know a spinner as a cache drive, especially a green one, is a recipe for slower performance, but for what I use my array it works out perfectly fine.
The I did find this: brtfs check shows errors:
I suspect I could possibly try a btrfs repair, but I don't know enough about it to be sure, considering all the warnings that pop-up about using it. My other alternative is likely just reformat. If memory serves I think I'll just lose whatever was on my cache in terms of docker configs among a few other things. I do have a backup of my "Appdata" but for some reason it's over 6 months old.
Recommendations on best course of action?
scylla-unraid-diagnostics-20240115-1944.zip