What contributes to the efficiency measurement known as Power Usage Effectiveness (PUE)?

Power Usage Effectiveness (PUE) is a widely used metric in data center efficiency that quantifies how efficiently a data center uses energy. Specifically, it measures the ratio of the total amount of energy used by a data center to the energy used by the IT equipment alone. The formula for PUE is expressed as:

PUE = Total Facility Energy / IT Equipment Energy

This indicates not only the power consumed by servers, storage, and networking devices but also includes overhead power used for cooling, lighting, and power systems. Therefore, the efficiency of both power and cooling systems is a critical aspect of PUE, as it directly affects the way energy is utilized in the facility.

In this context, attributes that involve both the IT equipment's energy needs and the efficacy of the facility's cooling systems contribute to overall PUE. This insight highlights the importance of optimizing both power delivery to IT equipment and ensuring that cooling systems are efficient to minimize waste and improve performance.

Other options like costs associated with remote managed services or rental agreements for data center space do not directly influence the measurement of PUE, making them less relevant to the specific efficiency measurement defined by PUE.