If your organisation has a data room or data centre, then you need to think about server racks, which secure all electronic components. Racks are available in different shapes and sizes, depending on space availability. The ultimate goal when buying server racks is to increase server room efficiency while optimising the available space. Here is a guide for beginners when choosing server racks. Cooling System In a server system, airflow efficiency aids in minimising energy costs while keeping all electronic components in optimal shape.