Apparatus used in data centers (and other similar premises) are exposed to overheating. This is due to the fact that high-precious devices produce a lot of heat during operation. Moreover, keep in mind the fact that usually equipment is mounted tightly which increases the level of heat exchange. Thus, it is vital to keep hardware cool and properly arrange server rack cooling.

Reasons to Keep a Server Cabinet Cool

A data center is a separate indoor room with no windows. Very often, premises that cannot be adapted to anything else are given to server rooms. Thus, in such premises, ventilation is usually not even provided. It is warm and stuffy in such rooms, while computing equipment needs a low air temperature with a certain level of humidity.

The server room usually contains extremely important and expensive equipment. Failure or temporary downtime of devices can lead to material and financial losses. Let’s take a look inside a modern server cabinet and try to find out which components are most critical to temperature changes.

  • HDD is called the hearts of the whole system. Accordingly, the failure of a hard disk can become critical for a company. Hard drive components are sensitive to spikes, dips, and overheating.
  • Although modern versions of RAM are equipped with passive cooling systems, still, keep in mind that a passive cooling system is effective only under certain conditions.
  • Modern processors are protected from overheating with special systems. Programed sensors are designed to signal to overheat, preventing the processor from functioning at high temperatures.
  • Chipsets on boards. The so-called north and south bridges of the computer are also powerful heat emitters. Usually, these controllers are equipped with passive cooling radiators, but they are also sensitive to changes in air temperature.

Main Tips to Keep Apparatus Cool

  1. Make sure that your premises meet datum and the following climatic conditions: indoor temperature ≤ 25°С with an optimal temperature value is 15-22°С; humidity level is 75% in winter and 65% in summer; airflow rate is ≤0.3-0.5 m/s; minimal air pollution; hardware noise ≤65dB.
  2. For closed premises, it is advisable to pick open-frame racks. Posts without side walls and panels will allow natural air to circulate through the system and all its components.
  3. The size of a server rack cooling unit should be proportional to the cabinet. The more devices are involved in the operation, the bigger system it requires.
  4. Although the apparatus is mounted compactly, try to leave some space between devices to ensure that they do not exchange heat.
  5. Consider the layout of the server center in advance. Consult a specialist who will explain how the heat will allocate and help pick the best server cabinet cooling system.

Possible Ways to Ensure the Required Temperature Level

To guarantee interruptible and optimal functioning, the following server cabinet cooling solutions can be used:

  1. Natural airflow. In this case, it is enough to create sufficient air circulation within a room. The option is suitable for premises, where hot air can leave the room through walls or windows.
  2. Installing fan systems. To force the air to circulate within a closed data center, you can install fans that will ensure constant air circulation.
  3. Dedicated systems are mounted in cabinets to provide server rack enclosure cooling.
  4. Precision air conditioner. This is an air conditioner for large server premises. This option is the most expensive, but not always the best way. It is usually used for large data centers.
  5. Split system. The most common solution for cooling data centers. It is versatile, affordable, and inexpensive.
  6. Supply ventilation in winter. This is one of the options of the free-cooling strategy. The essence of the system is that a type-setting supply unit is assembled, and the control dampers manage the flow of cold street air. This strategy is usually combined with a split system (for summer operation). The main pro is that a free outdoor environment replaces the air conditioner in winter, saving on electricity and the resource of the split system. Its main con is that its installation is possible not in all cases. Such systems are often used, for example, at cellular base stations.

Expensive devices are stored in data centers. Specific apparatus is critical to an increase in temperature and sudden changes in environmental conditions. It is necessary to approach the choice of the cooling system responsibly. To keep hardware safe and sound, users must plan the strategy of cooling the data center at the stage of developing its layout. The issue is vital and helps avoid system failure in operation and extra expenses.