Proxmox drive full causing issues with virtual machines

[evanonym0us]

I had 20 GB free and then my drive filled up completely, I don't know what caused it but now my OS is glitching causing the virtual machines to stop working. Does anybody know a possible fix?

 

[Dunuin]

What storage got full? What type of storage is it?

Output like df -h, lsblk, lvs, vgs, zpool list, zfs list, pvesm status would be helpful (and don't forget to post in in CODE tags so tables are readable).

 

[LnxBil]

Does anybody know a possible fix?

You mean besides deleted stuff?

As @Dunuin already stated, do that and also try to dissect the problem by running a manual recursive search for a lot of used space with

du -xhs * 2>/dev/null

Starting from the top.