Power Usage Effectiveness Reporting and Optimization

This application note focuses on Power Usage Effectiveness (PUE) as a key metric for measuring data center energy efficiency. It defines PUE as the ratio of total power used by a data center to the power delivered to IT equipment, with a target PUE of 1.2 being common. The document outlines the traditional methods of calculating PUE, which involve manual data collection and calculations, and contrasts this with the capabilities of Data Center Infrastructure Management (DCIM) software that automates these processes in real time. The note details how DCIM software collects energy consumption data automatically, calculates PUE, and provides trend analysis over time. It also discusses features such as compliance reporting, power management, and tools for identifying energy waste, including ghost servers. The application note emphasizes the benefits of using DCIM software for improving energy efficiency and making informed operational decisions.