Disk usage inconsistency in container

Patrik Stenfeldt

New Member
Jan 6, 2019
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.


The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!