Server was powered off, and now one of my drives is coming up "Unmountable".

[markc99]

Sometime last night, when attempting to play some TV from my Plex server, I noticed my libraries were missing. I checked the server, and somehow it was powered off... It wasn't power related as I have a UPS, and we never lost power. I'm thinking some other "failure" or a cat walked on the power button of my server. 🤷‍♂️

 

Regardless, I brought the server up, started up the array and one of my disks is unmountable. I saw some other forum posts about this issue, but I wanted to make sure to start a thread about my issue, and not hijack someone elses...

 

I have been seeing odd things with Plex recently, where it will play some media fine for awhile, and then the screen will either freeze, or glitch out, the sound will continue playing, but sometimes I see the video come back, but it's from a totally different media file (show or movie). I was thinking about doing a error check on my drives, but I'm not sure how to do that...

 

Mark

tower-diagnostics-20240916-1040.zip

[JorgeB]

Check filesystem on disk4, run it without -n

 

Also, btrfs is detecting data corruption on the pool, run memtest first, then run a scrub.

 

 

[markc99]

17 minutes ago, JorgeB said:

Check filesystem on disk4, run it without -n

 

Also, btrfs is detecting data corruption on the pool, run memtest first, then run a scrub.

 

 

The filesystem type is set to xfs though, so I'm not sure what's going on with btrfs...

[markc99]

22 minutes ago, JorgeB said:

Check filesystem on disk4, run it without -n

 

Also, btrfs is detecting data corruption on the pool, run memtest first, then run a scrub.

 

 

I got this:

 

[itimpi]

Rerun without -n and add -L.

[markc99]

4 minutes ago, itimpi said:

Rerun without -n and add -L.

Looks like it's finished... Restarted array in normal mode, and the disk is back! Thank you everyone.

[JorgeB]

1 hour ago, markc99 said:

The filesystem type is set to xfs though, so I'm not sure what's going on with btrfs...

btrfs is the pool, not the array disk, and like mentioned, there's a lot of data corruption detected, so you should run memtest and then scrub the pool.