Understanding Data Center Efficiency Metrics

Power Usage Effectiveness (PUE)

Power Usage Effectiveness (PUE) is the most widely adopted metric for data center energy efficiency. Developed by The Green Grid, PUE measures the ratio of total facility energy consumption to IT equipment energy consumption. A perfect PUE score would be 1.0, indicating all power is used by IT equipment.

Data Center Performance per Energy (DPPE)

DPPE is a comprehensive metric that evaluates data center energy efficiency through four key components:

• IT Equipment Energy Efficiency (ITEE)
• IT Equipment Utilization (ITEU)
• Facility Energy Efficiency (FEE)
• Green Energy Coefficient (GEC)

Data Center Energy Productivity (DCEP)

DCEP measures the useful work produced by a data center divided by the total energy consumed to produce that work. This metric provides a more nuanced view of data center efficiency by focusing on productivity rather than just power consumption.

• Measuring Useful Work:
  • Task completion metrics
  • Network throughput
  • Storage utilization
  • Computing cycles completed
• Energy Assessment:
  • Total facility energy consumption
  • Time-based energy analysis
  • Workload-specific energy tracking
  • Environmental impact considerations

How CentralAxis Tracks These Metrics

• PUE Monitoring:
  • Real-time PUE calculation and tracking
  • Automated alerts for PUE threshold violations
  • Historical PUE trend analysis
  • Cooling efficiency optimization recommendations
• DPPE Management:
  • Component-level DPPE tracking
  • Green energy usage monitoring
  • IT equipment efficiency analysis
  • Facility optimization suggestions
• DCEP Analysis:
  • Workload productivity measurement
  • Energy consumption correlation
  • Performance optimization recommendations
  • Custom DCEP reporting and analytics