| 摘要(英) |
The cloud service will become more and more popular in the next few years, so the cloud service providers have to build many datacenters worldwide to fulfill massive service requests. For example, Microsoft gradually invests a lot of resources in building and expending cloud data centers around the world and its servers are growing ten thousands per month in worldwide cloud datacenters. The primary considerations for a cloud datacenter are cooling and power saving plans as the center has to accommodate a high density of servers and network equipments.
The most efficient and economical method for power saving is to improve the efficiency of power usage in cloud computing data centers and meet the goal of power usage reduction. We must first understand how power is used throughout the facility, and focus the efficiency-improving efforts on the sections that consume the most power. The Lawrence Berkeley National Laboratory (LBNL) pointed out that IT equipment, heating, ventilation, and air conditioning (HVAC), and HVAC fans are the top three power consuming elements of the data center, using 46%, 23%, and 8%, respectively. As the HVAC and HVAC fans are parts of the air conditioning system, if we are able to improve the power consumption efficiency and meet the reduction goals, new layouts and power reduction strategies should be implemented in the server room, air conditioning systems, servers, as well as revamped management policies for the data center facility.
In this study, we discuss how to plan computing rooms, power saving for air conditioning and servers and how to maintain cloud datacenter to achieve PUE 1.2-1.5, the goal of cloud datacenter energy efficiency. The enterprises and academic institutions can refer to this research when planning their energy-saving strategies for cloud datacenters.
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