Computations per watt is improving, but computation demand is increasing even faster, so overall energy use is increasing. The lifetime electrical cost will soon exceed cost of IT equipment. However, IT equipment load can be controlled. Reducing the IT power requirements through energy-efficiency improvements results in a multiplier effect with the infrastructure power: every unit of IT power results in some portion of infrastructure power also being utilized; by eliminating IT power use, you also can eliminate the associated infrastructure power use.
HIGH-LEVEL BEST PRACTICES:
- Turn Off Unused Equipment
- Decommission Unused Servers
- Consolidate Lightly Used Servers
- Ensure IT Equipment Power Supplies are Properly Configured
- Virtualize the Computer Hardware Platform, Operating System (OS), Storage Device, or Computer Network Resources
- Install IT Management Systems and Applications
- Better Power Management
- Storage Optimization: Deduplication, RAID, etc.
- During Refresh, Procure More-Efficient IT Equipment (ENERGY STAR Certified servers, storage, large network equipment, and UPSs)
- IT Hardware Can be Designed to Dramatically Reduce Data Center Infrastructure Requirements: Environmentally hardened, DC powered, Integrated UPS, Liquid Cooled, Demand Responsive, Redundancy in the Network (rather than in the data center)
- Data Center Master List of Efficiency Actions provides more information on the high-level best practices outlined above as well as a more detailed list of best practices related to IT equipment.
- The Energy Efficiency Potential of Cloud-Based Software: A U.S. Case Study explores the potential of cloud-based software due to both large reductions in total servers through consolidation and large increases in facility efficiencies compared to traditional local data centers.
- ENERGY STAR Office Equipment web page includes links to purchase ENERGY STAR Certified servers, storage, UPSs, and large network equipment.
- Federal Energy Management Program (FEMP) pages for energy-efficient servers, storage, and UPSs provide federal agencies with guidance on calculating cost-effectiveness, claiming an exception to purchasing requirements, incorporating Federal Acquisition Regulation language in contracts, finding federal supply sources, and tips to user products more efficiently.