Monitoring of the technical infrastructure and coordination of operation and maintenance with external service providers Optimization of energy efficiency Planning, procurement and installation of further systems [...] power of the IT equipment. It houses a mirror (RZ-1 and Green IT Cube) of the important basic IT services, as well as the servers, computing nodes and storage units for the experiment data. A time-lapse [...] Conventional data center with the central network node, mirror data center for the important basic services, and central location of the magnetic tape library. BG2 Location of the second (backup) magnetic