Disk usage inconsistency in container

Patrik Stenfeldt

New Member
Jan 6, 2019
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I have setup a container with ubuntu 18.04 and samba.
When moving a bunch of data from my other ubuntu setup to the container with rsync, the reported used space (using df) differs, about 1% LESS space is used in the container compared to the original server.
Using the same rsync to a backup nas (freenas) is the same.

But if i connect to samba and compare contents in the original server and the ubuntu container, they match to the byte.

Why is this?
Im running the container on a proxmox system running raidz2 and the original server from a hardware mirrored system.

Im suspecting a smaller blocksize on my proxmox system, i just want to make sure that this is normal.