Focus on waste heat utilisation: What ERF and the German Energy Efficiency Act mean for data centres and cloud infrastructures

27.11.2025

We explain the concept of the Energy Reuse Factor and outline the requirements set out in the German Energy Efficiency Act.

Use of Open Container Initiative (OCI) container images as Linux Containers (LXC) in Proxmox VE

24.10.2025

This blog post shows how OCI-compliant container images can be used directly as LXC containers in Proxmox Virtual Environment. In particular, the porting of the containers and operation via Systemd are discussed.

Understanding Cloud Costs: The Lifecycle of an Instance in OpenStack

27.09.2025

Understanding cloud costs: Why stopped instances in OpenStack continue to incur costs - and how shelving saves resources.

Step-by-Step Guide to Setting Up a Proxmox Test Cluster with High Availability via the WebGUI

06.05.2025

Proxmox VE as a lean alternative for small on-premises environments: In our blog, we show you how to set up a mobile test cluster with three nodes - including the first steps towards high availability with Corosync and Ceph.

The true cost of the cloud: why on-premises is making a strategic comeback

27.03.2025

Cloud solutions are not always the favourable choice! Rising costs and the desire for more control are leading companies back to on-premise. Discover why the hybrid approach and open source tools are the future of digital infrastructure.

Proxmox VE vs. OpenStack: Comparison of open source virtualization solutions for cloud infrastructures

09.01.2025

This article compares the open source virtualization solutions Proxmox VE and OpenStack. It examines their functions and possible applications in different scenarios.

So this was vendor lock-in! Some reflections on cloud market dynamics and reducing technology dependencies.

04.07.2024

On the dynamics of the cloud market and reducing technology dependency with Kubernetes

What have the open source cloud providers ever done for us?

15.04.2024

In this blog post, we explain the advantages of open source cloud providers.

Server test routine (automation)

21.02.2024

In this article, we address the utilisation of the servers and the benchmarks used. We show how we continuously optimise the performance of our liquid cooling solutions (part 2)

Server test routine (load and benchmarking)

18.09.2023

In this article, we address the utilisation of the servers and the benchmarks used. We show how we continuously optimise the performance of our liquid cooling solutions (part 1)

Parameters for optimising the energy efficiency of data centres

15.08.2023

It is worthwhile in many respects to optimise the energy efficiency of your data centres. Against this backdrop, we present 3 basic measures that can be used to increase the efficiency of data centres

Minimum requirements for the use of cloud offerings by the public sector - Version 2

27.06.2023

Position paper "Minimum requirements for the use of cloud offerings by the public sector" - Version 2″.

Blog.

Focus on waste heat utilisation: What ERF and the German Energy Efficiency Act mean for data centres and cloud infrastructures

Use of Open Container Initiative (OCI) container images as Linux Containers (LXC) in Proxmox VE

Understanding Cloud Costs: The Lifecycle of an Instance in OpenStack

Step-by-Step Guide to Setting Up a Proxmox Test Cluster with High Availability via the WebGUI

The true cost of the cloud: why on-premises is making a strategic comeback

Proxmox VE vs. OpenStack: Comparison of open source virtualization solutions for cloud infrastructures

So this was vendor lock-in! Some reflections on cloud market dynamics and reducing technology dependencies.

What have the open source cloud providers ever done for us?

Server test routine (automation)

Server test routine (load and benchmarking)

Parameters for optimising the energy efficiency of data centres

Minimum requirements for the use of cloud offerings by the public sector - Version 2

Green, Open, Efficient.

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