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Recommended Data Center Temperature and Humidity

We wanted to recommend the temperature and humidity guidelines you should be following and monitoring in your data centers. Room Alert provides multiple ways to proactively monitor these environment conditions to make sure your most important resources and assets are always protected. Don’t allow temperature, humidity or other environment conditions cost your company hundreds of thousands of dollars in lost revenue!


Recommended Computer Room Temperature

Server rooms and data centers contain a mix of both hot and cool air – server fans push out hot air while running, while air conditioning and other cooling systems bring in cool air to counteract all the hot exhaust air. Maintaining the right balance between hot and cool air has always been foremost in maintaining data center uptime. If a data center gets too hot, equipment runs a higher risk of failure. That failure often leads to downtime, lost data, and lost revenue.



As newer standards and better equipment available with improved tolerances for higher temperature ranges. American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) recommended an acceptable operating temperature range of 18° to 27°C.

Keeping in line with those revised temperatures, server manufacturer Dell states that the temperature “sweet spot” for their servers is 26°C.    Higher allowable temperatures mean data centers and companies with dedicated server rooms don’t need to cool them as much as they used to. This helps conserve both power and money in many instances.   The higher the temperatures, the more risk of server failure and data loss, and the more important to have proactive monitoring equipment in place that can quickly notify you when an environment issue occurs.


Recommended Computer Room Humidity

Relative humidity (RH) is defined as the amount of moisture in the air at a given temperature in relation to the maximum amount of moisture the air could hold at the same temperature. In a data center or computer room, maintaining ambient relative humidity levels between 45% and 55% is recommended for optimal performance and reliability.

It’s very important to make sure the humidity stays in the recommended range. If humidity is too low, the dry air will lead to electrostatic discharge (ESD) which can damage critical server components. Too much humidity will cause condensation, leading to hardware corrosion and equipment failure. Early warning thresholds of relative humidity should trigger alerts by your monitoring system.

It is absolutely critical that data center temperature and humidity is monitored closely to provide for both maximum uptime and maximum hardware life. If your company is not proactively monitoring both temperature and humidity in your data center or server room, please contact us today.  our experience will help make sure your data center and critical facilities are protected against negative environment factors.




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