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Just found this on the Proxmox Wiki https://pve.proxmox.com/wiki/Performance_Tweaks#VZdump stating that the default value for vzdump is limited to 10000 Kbps (10 Mbps). This might explain even my misunderstanding why backups to my NAS are pretty “slow” sudo  vi /etc/vzdump.conf showed that the original line in Proxmox 3.2 is #bwlimit: KBPS which I changed for now without notable issues to bwlimit: 40000  However James Coyle mentioned running into another issue with a too high value on undersized servers. http://www.jamescoyle.net/how-to/290-limit-backup-io-bandwidth You should keep that in mind if you are about to bring your server down while running vzdump backups. Related posts: Proxmox: Getting some performance data from a Proxmox server Proxmox: OpenVZ (OVZ) and Turnkey Appliances root password Linux: Install Proxmox Virtual Environment on Debian 6.0 Squeeze Distro (Kanopix) Debian 7.0 Wheezy / Proxmox 3.x: Install ZFS Native Proxmox: Rename a standalone node (hostname) Debian / Proxmox – Install Docker with Rancher and DockerUI webgui on […]

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