External Metrics Server for Proxmox
If you are familiar with the Proxmox WebUI1, you'll know, that it provides several metrics that are not available using telegraf plugins. Espacially LXC Guests are hard to monitor. Since Proxmox Release 4.0, it's possible to use an external metrics server. Currently Graphite3 and InfluxDB4 are supported. The following example will demonstrate, how to send data from Proxmox into your InfluxDB and visualize it in Grafana5. Although the information you get from telegraf plugins is nice, they are not reliable for e.
Increase performance of Proxmox Backups to NFS Targets
I'm using a Proxmox Server at home to virtualize different services. The daily backups are created on an NFS share of my NAS. While the NFS share usually performs with ~70MB/s, the proxmox backup speed was only around 2MB/s. Backups to the local SSD were finished with ~100MB/s without compression and ~15MB/s with gzip, so it should not be a CPU issue. There are some threads in the Proxmox Forum about the influence of NFS mount-options and other stuff but in the end the following change workes for me: