Servers form the basis for a large number of business-relevant applications and services, by means of which business processes are partially or fully automated. Depending on the requirements and company size the spectrum ranges from comparatively inexpensive network array storage servers (NAS servers) for startups and small businesses to classic server infrastructures that are usually virtualized depending on the number and requirements of medium-sized companies, to server infrastructures that are completely outsourced to the cloud or data centers.