Docker disk usage causing server crashes

Channels DVR Server Troubleshooting
#1

This week, Channels DVR server has been crashing every day and, every time it happened, I was not home. Finally, I got a chance to check the log and saw that it complained about low disk space.

I just restarted the PC to try and clear things up but it's not great:

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Before I restarted, it was down to 500 MB left.

I used the Tree Size application to check the drive space and it's Docker that is eating most of the disk space:

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Is there anything that can be done to reduce the amount of disk space used by Docker?

FYI, I don't have any music or videos saved on the C: drive so there is not much else I can do.

#2

Check for unused container images in Portainer.

1 Like
#3

Thank you. That helped clean up a little bit but that didn't make a big dent, unfortunately.

I think I'm gonna have to uninstall it and reinstall it. Available disk space down to 300 MB now. It's a matter of time before Channels complains and dies.

#4

That's a pretty tiny hard drive. You may want to leave the OS on C:\ and get something larger for a dedicated docker drive

1 Like
#5

Fair statement. Thank you for the suggestion. I will look into it.

#6

There is an issue with Docker Desktop in Windows where it will often take over space, but never give it back. Every once in a while, you need to compress the virtual drive. Just follow the directions in the top response here and you'll get back almost all your space:

https://stackoverflow.com/questions/70946140/docker-desktop-wsl-ext4-vhdx-too-large?answertab=scoredesc

Let us know how big it is afterwards! I can usually get mine down to about 25 GB.

1 Like
#7

That did it!

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Thank you!