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Monitoring Server Room Temperature

Ensuring efficient airflow inlet and exhaust.

Placing temperature sensors on the front and back of your server racks will allow you to measure the temperature of the air going in and coming out of your servers. This is important to know to make sure that the cold airflow is not being mixed with hot air circulating in the room, as well as to ensure that the hot air exhaust from your servers is within the proper ranges. Additional airflow sensors can monitor the presence of airflow within your server racks and will alert you if it stops.

Fine tuning your AC to reduce power consumption and increasing energy efficiency.

If you are actively monitoring the temperature in your server room, you will begin to notice trends and baselines. By looking into this data, you should be able to see if your ac unit is able to keep up with the load and if there is cost savings to had. Many times room temperature will be set lower than is actually needed in-order to compensate for not knowing exactly how much is needed. If your server room is around 64º and steady there is room for you to optimize as you may be cooling too much.

Using this temperature data you can begin to test and optimize your server room temperature by incrementally increasing the temperature over time to find that sweet spot for better energy efficiency. A degree or two can make a large difference in cost when considering the 24/7/365 running times for your AC units. The mark you are trying to hit will be around 75º with relative humidity between 45-50% which is still below the 80ºF recommended high from the ASHRAE.

Make sure to take a wait and see approach, as the differences will take time to manifest and you do not want to make these changes too quickly. As you optimize, your temperature monitoring software should be able to show you the slight increases in temperature as you optimize your cooling but it should also show you a new maintained baseline level.

Server Room planning and scaling.

Using the temperature data collected from your temperature monitoring sensors you should be able to understand the cooling loads and airflow distribution of your current layout. You can now use these insights to help plan for the load of adding new equipment as well as proper layout for best airflow.

By taking into account your electrical consumption for the AC unit to cool your current server room configuration, you should be able to determine what is needed if any to scale the cooling of your room to add additional server racks and devices.

You can use the forms below to calculate the costs of running your AC unit and cooling your server room to come up with the total costs to cool your server room for the year. From there you can also use them to scale upwards and determine the costs if more cooling is needed.

Extending the Life of your Equipment

Last but not least. Monitoring your server room temperature and ensuring that it is maintained within the proper temperature range will help to prevent additional wear and tear on your equipment which means replacements are done for scalability and innovation reasons rather than breakdowns and failures. Both of which tend to happen at the most inopportune times, and may larger issues such as downtime, added labour to replace, and potential lack of service to your employees or customers who rely on these tools to be productive.