Green Data Center Networks: Challenges and Opportunities

Abstract

Abstract-The concerns about environmental impacts, electricity cost, and energy needs of data centers are mounting. These concerns have given significant impetus to consider energy efficiency as one of the major data center design parameters for researchers and IT executives. Tremendous growth in the size and computing demands of data centers mandate scalable, fault tolerant, and energy efficient network infrastructure within data centers. In the recent years, new Data Center Network (DCN) architectures have aptly proposed a viable solution to the issues posed by the legacy DCNs. New DCN architectures are required to be energy efficient and energy proportional, besides dealing with other identified design drawbacks, such as scalability, fault tolerance, end-to-end bandwidth, and non-agility. In this article, we will deliberate on the various DCN architectures, their inherent problems, and the potentials to achieve energy efficiency. We will also shed light on myriad techniques that may be suitable to make the DCN architectures more energy efficient and energy proportional. Finally, we will outline future directions.

Resource management in cloud computing: Taxonomy, prospects, and challenges

“…According to [41], in 2010, energy consumption of communication system of all the data centers has been approximately 15.6 billion kW h. Significant research has already been carried out and various energy efficient RM techniques have been proposed that are discussed in Section 3.1. Energy efficient techniques can benefit both users and service providers in term of price and revenue.…”

“…It is because energy consumption not only increases the power expenses of service providers, but it also plays a role in increasing the CO 2 emission [41]. Moreover, machines and fossil oil used to generate power are main contributors in CO 2 emission.…”

A New Kinetics Defect Diffusion Model and the Critical Current Density of Semiconductor Laser Degradation

“…The hand-held mobile devices such as iPhone and iPad have further fueled the demand for ever-increasing internet speed and mega datacenter capacity. In order to enable social networking, web search and online purchasing, high-speed broadband transceivers have become the important building blocks in the modern communication network deployment (Basal, 2016;Bilal et al, 2013).…”

CloudNetSim++: A toolkit for data center simulations in OMNET++

“…The aforementioned implies that idle resources can transition to sleep mode unless required to handle the workload [9,10]. However, due to the increase in the usage of cloud services, efficient use of data centers and scalability has become a critical research challenge [11]. Therefore, to support research community in investigating these challenges, we developed CloudNetSim++, a realistic network based data center communication model.…”