Which location for the temperature/humidity measurement should you recommend for the audit?

You need to determine the strategy for the cooling audit. All the servers are based on a front-to-rear (F-R) airflow design.

Which location for the temperature/humidity measurement should you recommend for the audit?
A . At the back/rear of the server at 50 mm/2 inch
B . At 1.5 meters/5 feet above the floor in the middle of the cold aisle
C . At the front/intake of the server at 50 mm/2 inch
D . At 1.5 meters/5 feet above the floor in the middle of the hot aisle

View Answer

Answer: C

Explanation:

For a cooling audit in a data center, it is essential to measure temperature and humidity where air enters the servers to accurately assess cooling performance. In this case, since all servers have a front-to-rear (F-R) airflow design, measuring at the front/intake of the server will provide a precise understanding of the cooling conditions that the equipment is experiencing .

Detailed Explanation

Servers with a front-to-rear airflow design draw in cool air from the cold aisle at the front, which is then exhausted into the hot aisle at the rear. By measuring temperature and humidity 50 mm/2 inches from the front intake, you gather data on the air conditions right before it enters the servers, providing an accurate representation of the cooling environment as it directly impacts the equipment.

Measuring in the cold aisle at the front intake ensures that the readings reflect the actual conditions of the incoming air that the servers depend on for effective cooling. This approach is consistent with best practices for maintaining thermal conditions in a data center, as it helps confirm that the cooling systems are delivering air within the required temperature and humidity specifications.

EPI Data Center Specialist References:

According to the EPI Data Center Specialist curriculum, the optimal placement for temperature and humidity sensors is at the intake of the equipment in the cold aisle, as it directly correlates to the environmental conditions affecting the servers. This positioning allows for a more effective audit of cooling performance, which is critical for maintaining the reliability and efficiency of the data center’s operations.