MIMO Power Control for High-Density Servers in an Enclosure

—Power control is becoming a key challenge for effectively operating a modern data center. In addition to reducing operating costs, precisely controlling power consumption is an essential way to avoid system failures caused by power capacity overload or overheating due to increasing high server density. Control-theoretic techniques have recently shown a lot of promise for power management because of their better control performance and theoretical guarantees on control accuracy and system stability. However, existing work oversimplifies the problem by controlling a single server independently from others. As a result, at the enclosure level where multiple high-density servers are correlated by common workloads and share common power supplies, power cannot be shared to improve application performance. In this paper, we propose an enclosure-level power controller that shifts power among servers based on their performance needs, while controlling the total power of the enclosure to be l...

• Type: Journal
• Year: 2010
• Where: TPDS
• Authors: Xiaorui Wang, Ming Chen, Xing Fu
• Keywords: Control Solution, Enclosure-level Power Controller, Power Capacity Overload, TPDS 2010