Green data center using centralized power-management of network and servers

Green data center is becoming more recognized as a likely key trend in the future of Information and Communications Technologies. It attracts growing interest among many scientists today due to many of its possessed benefits, such as increasing energy saving levels, cost reductions, as well as decreasing carbon emissions. In a data center, Server Virtualization and Live Migration technologies facilitate efficient load balancing and reduction in power consumption of servers. Although using these technologies has many benefits, they do not, however, take energy-efficiency of the network devices such as routers, switches into consideration. In this paper, we construct an energy-efficient data center by combining server consolidation and idle logic approach of the data center network. The idle logic approach allows reducing power consumption of network devices by rapidly turning off sub-components when no activities are performed, and by re-waking them up when the system receives new activities. The results show that our combination reduces the consumed energy of network devices as well as servers.