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Unraid 6.9.2 Cache drive full today

Featured Replies

Hi, 

 

So I checked my server today and I noticed the cache drive was full. Last night it was in the green but this morning its full. I'm not sure what is taking up the majority of the space or why it ballooned over night. I tried manually running mover and nothing has changed. I also don't have anything major being copied to the cache drive. I did check in the domain folder and I saw some old VM's which I removed but still 97% of the space is being taken up.tower-diagnostics-20210831-1049.zip - I have included diags -

 

What I want to know is what is taking up all of the space on the cache drive.

  • Community Expert

Why do you have 100G docker.img? Have you had problems filling it? 20G is usually more than enough, and making it larger won't fix filling it, it will only make it take longer to fill.

 

And I see it is already using 40G of that 100G. You almost certainly have one or more of your applications writing into docker.img.

 

Each path specified in an application must match a container path in the docker mappings, case-sensitive.

 

Probably your appdata is huge also. I have 16 dockers including plex, which is known to take a lot of space in appdata, but my total appdata is less than 16GB.

 

What do you get from the command line with this?

du -h -d 1 /mnt/user/appdata

 

  • Author

@trurl Thanks for getting back to me/

 

To answer the first question, I don't remember what happened but I had an issue where I had to expand the docker size. I really wish I could remember what it was but I expanded the docker image to what it is now. I think I may have gone a bit overboard. 

 

Its still reading to  send that info but here is what has posted so far:

 

root@Tower:~# du -h -d 1 /mnt/user/appdata
1.8M    /mnt/user/appdata/DiskSpeed
132K    /mnt/user/appdata/Dolphin
3.9M    /mnt/user/appdata/FileBot
1.1M    /mnt/user/appdata/FileZilla
4.5M    /mnt/user/appdata/HandBrake
233M    /mnt/user/appdata/JDownloader2
332K    /mnt/user/appdata/MediaInfo
296K    /mnt/user/appdata/RDP-Calibre
724K    /mnt/user/appdata/beets
77M     /mnt/user/appdata/binhex-delugevpn
666G    /mnt/user/appdata/binhex-emby
34G     /mnt/user/appdata/binhex-krusader
602M    /mnt/user/appdata/binhex-lidarr
76K     /mnt/user/appdata/binhex-nzbget

 

I will post the complete list when its done.

 

  • Community Expert

With 666 GB for Emby and 100GB for docker.img file there is not much free space for anything else :(    The 34GB for Krusader also looks rather large.

  • Author
Just now, itimpi said:

With 666 GB for Emby and 100GB for docker.img file there is not much free space for anything else :(    The 34GB for Krusader also looks rather large.

 

I'm not sure why Krusader has such a large size? I use that to sometimes move stuff over internally, is there a way to shrink it down? I also can decrease the docker size. 

 

Please note: the command that I ran has not returned - Plex would probably be the biggest resource on here and the terminal has just pause after nzb-get

Any idea why this would happen?

 

Also, there are a number of dockers that I tried but removed, (nzbget for example) I thought they had been removed from the system, what would be the best way to remove these ?

 

20 minutes ago, mwoods98 said:

 

I'm not sure why Krusader has such a large size?

Check Krusader's internal recycle bin.

  • Author
7 minutes ago, JonathanM said:

Check Krusader's internal recycle bin.

Ok I will right now that docker won't start... grrr

  • Author

Update:

 

Ok this is the final result of the command listed above:

 

root@Tower:~# du -h -d 1 /mnt/user/appdata
1.8M    /mnt/user/appdata/DiskSpeed
132K    /mnt/user/appdata/Dolphin
3.9M    /mnt/user/appdata/FileBot
1.1M    /mnt/user/appdata/FileZilla
4.5M    /mnt/user/appdata/HandBrake
233M    /mnt/user/appdata/JDownloader2
332K    /mnt/user/appdata/MediaInfo
296K    /mnt/user/appdata/RDP-Calibre
724K    /mnt/user/appdata/beets
77M     /mnt/user/appdata/binhex-delugevpn
666G    /mnt/user/appdata/binhex-emby
34G     /mnt/user/appdata/binhex-krusader
602M    /mnt/user/appdata/binhex-lidarr
76K     /mnt/user/appdata/binhex-nzbget

74G     /mnt/user/appdata/binhex-plexpass
541M    /mnt/user/appdata/binhex-radarr
120M    /mnt/user/appdata/binhex-sabnzbd
1.7G    /mnt/user/appdata/binhex-sonarr
540K    /mnt/user/appdata/cops
0       /mnt/user/appdata/data
149M    /mnt/user/appdata/lazylibrarian
652K    /mnt/user/appdata/lazylibrarian-calibre
235M    /mnt/user/appdata/mylar
308M    /mnt/user/appdata/syncthing
4.6G    /mnt/user/appdata/tautulli
0       /mnt/user/appdata/tdarr
0       /mnt/user/appdata/ubuntudata
0       /mnt/user/appdata/unmanic
1.2M    /mnt/user/appdata/xteve
36K     /mnt/user/appdata/xteve_zap
5.0M    /mnt/user/appdata/binhex-plex
0       /mnt/user/appdata/macinabox
13M     /mnt/user/appdata/calibre
40K     /mnt/user/appdata/filestash
0       /mnt/user/appdata/airsonic-advanced
813M    /mnt/user/appdata/binhex-airsonic
143M    /mnt/user/appdata/ApacheGuacamole
3.0M    /mnt/user/appdata/swag
14G     /mnt/user/appdata/influxdb
592K    /mnt/user/appdata/telegraf
12M     /mnt/user/appdata/grafana
94M     /mnt/user/appdata/Varken
11M     /mnt/user/appdata/overseerr
13M     /mnt/user/appdata/gaps
796G    /mnt/user/appdata

  • Community Expert
54 minutes ago, mwoods98 said:

666G    /mnt/user/appdata/binhex-emby

I don't use that, but its size seems ridiculous. I thought emby was a media server. That would normally mean your media is located in some other user shares not living on cache. Have you put your media into its appdata? Does it have DVR capability and you are saving recordings into its appdata?

 

Plex appdata seems to large too. Why are you running both emby and plex?

 

59 minutes ago, mwoods98 said:

I had to expand the docker size

1 hour ago, trurl said:

making it larger won't fix filling it, it will only make it take longer to fill.

I run 16 dockers and they use about half of the 20G I have given docker.img

 

53 minutes ago, mwoods98 said:

there are a number of dockers that I tried but removed, (nzbget for example) I thought they had been removed from the system, what would be the best way to remove these ?

You can delete the appdata folders for any docker you don't need anymore. Of course, nzbget for example, will only give you back 76K.

 

Do you understand docker volume mapping?

  • Author
21 minutes ago, trurl said:
1 hour ago, mwoods98 said:

666G    /mnt/user/appdata/binhex-emby

I don't use that, but its size seems ridiculous. I thought emby was a media server. That would normally mean your media is located in some other user shares not living on cache. Have you put your media into its appdata? Does it have DVR capability and you are saving recordings into its appdata?

 

Plex appdata seems to large too. Why are you running both emby and plex?

When I first setup this server, I was trying to decide between Plex and Emby. I did install both. Plex is preferred so I can kill emby and save a bunch of space

The media is on a different share, its not in appdata

24 minutes ago, trurl said:
1 hour ago, mwoods98 said:

I had to expand the docker size

1 hour ago, trurl said:

making it larger won't fix filling it, it will only make it take longer to fill.

I run 16 dockers and they use about half of the 20G I have given docker.img

Using the suggestion, I dropped the size of the docker image to 50G. However, the docker service will not start. Do I need to remove the image that is in the cache? that's still 100G and still there.

 

25 minutes ago, trurl said:
1 hour ago, mwoods98 said:

there are a number of dockers that I tried but removed, (nzbget for example) I thought they had been removed from the system, what would be the best way to remove these ?

You can delete the appdata folders for any docker you don't need anymore. Of course, nzbget for example, will only give you back 76K.

 

Do you understand docker volume mapping?

 

I think I do but  I could always have a hole in my knowledge. I'm more than happy to apply suggestions to get this fixed.

 

Thanks

 

  • Community Expert

Post new diagnostics after.

  • Author
29 minutes ago, trurl said:
1 hour ago, mwoods98 said:

Do I need to remove the image that is in the cache?

You have to delete and recreate it.

https://wiki.unraid.net/Manual/Troubleshooting#How_do_I_recreate_docker.img.3F

https://wiki.unraid.net/Manual/Troubleshooting#Restoring_your_Docker_Applications

 

Ok, I have deleted it, and restated the docker services. None show up. Docker says there are no installed containers.

I have rebooted the server and still don't see any dockers.

Updated diags posted.

 

 

 

tower-diagnostics-20210831-1410.zip

  • Community Expert
5 minutes ago, mwoods98 said:

Docker says there are no installed containers.

Read the 2nd link I already gave above about restoring your containers.

 

  • Author

Thanks for that. Restoring now. 

 

Would you like another diag log drop when done?

  • Community Expert
1 minute ago, mwoods98 said:

Would you like another diag log drop when done?

yes

  • Community Expert

Did you reinstall all your containers, or did you decide you didn't need some of them?

  • Author

So I removed emby and only installed the ones I was used. I didn't re-install those that were installed at one point but were not being used.

 

The cache drive is still listed as 96% full 

  • Community Expert
1 minute ago, mwoods98 said:

The cache drive is still listed as 96% full 

Have you deleted any of those appdata folders that you no longer need?

  • Author
2 minutes ago, trurl said:
4 minutes ago, mwoods98 said:

The cache drive is still listed as 96% full 

Have you deleted any of those appdata folders that you no longer need?

 

Full honesty, I thought that once rebuilding things the cache drive would have been emptied but doing this bit of work now

 

  • Community Expert
2 minutes ago, mwoods98 said:

Full honesty, I thought that once rebuilding things the cache drive would have been emptied but doing this bit of work now

Why would your server automatically empty your cache of files you might want for later?

  • Author
1 hour ago, trurl said:
1 hour ago, mwoods98 said:

Full honesty, I thought that once rebuilding things the cache drive would have been emptied but doing this bit of work now

Why would your server automatically empty your cache of files you might want for later?

Excellent point, I just thought things were loaded into cache at boot up time. 

Currently the cache drive is at 21% utilization. 

 

@trurl - I really want to thank you for your help today. I know this is not your job and I just wanted to say thanks for helping me today. 

  • Community Expert
5 minutes ago, mwoods98 said:

thought things were loaded into cache at boot up time

Would have taken a long time to boot to get nearly a TB of data loaded onto cache😁 And where would it come from?

5 minutes ago, mwoods98 said:

Currently the cache drive is at 21% utilization. 

Post new diagnostics

  • Author
12 minutes ago, trurl said:
16 minutes ago, mwoods98 said:

Currently the cache drive is at 21% utilization. 

Post new diagnostics

 

New Diags as requested - 

 

tower-diagnostics-20210831-1728.zip

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