I'm looking into one Proxmox server that is running out of space. It has some over provisioned storage. Everything looks to be fine except one VM disk. It is 10 GB disk according to configuration but the file itself on Proxmox is 15 GB big. I'm mostly using vmware and never seen such thing before.
Can someone tell why it is like that?
Is it the way Proxmox stores snapshots (this VM had one that was removed)? Or maybe it was resized?
I'm a bit worried for other VM disks.
Thanks a lot!