Abstract The issue of data center power consumption is becoming increasingly serious. One the most effective techniques for increasing resource utilization and lowering virtual machine consolidation. This paper proposes a threshold-based energy-efficient SLA-aware algorithm migration Based on statistics analysis historical status, dynamically obtains upper CPU threshold physical servers identif...

Abstract With the rapid development of information technology in China, problem energy conservation data centers has become increasingly prominent, and green center model is inevitable. The refrigeration equipment which main power consumption affected by environment, room temperature, unit output, other factors. This paper provides a scheme multi-unit collaborative optimization cooling. It main...

In this paper, we apply a Markov decision process to find the optimal asynchronous dynamic policy of an energy-efficient data center with two server groups. Servers in Group 1 always work, while servers 2 may either work or sleep, and fast setup occurs when server’s states are changed from sleep work. The faster cheaper than those so that has higher service priority. Putting each can reduce sys...