Title :
Minimizing energy cost for Internet-scale datacenters with dynamic traffic
Author :
Xu, Dan ; Liu, Xin ; Fan, Bin
Author_Institution :
Comput. Sci. Dept., Univ. of California, Davis, CA, USA
Abstract :
In this paper, our goal is to achieve an optimal tradeoff between energy efficiency and service performance over a set of distributed IDCs with dynamic demand. In particular, we consider the outage probability as the QoS metric, where outage is defined as service demand exceeding the capacity of an IDC. Our goal is thus to minimize total energy cost over all IDCs, subject to the outage probability constraint. We achieve the goal by dynamically adjusting server capacity and performing load shifting in different time scales. We propose three different load-shifting and joint capacity allocation schemes with different complexity and performance. Our schemes leverage both stochastic multiplexing gain and electricity-price diversity.
Keywords :
Internet; computer centres; multiplexing; probability; quality of service; resource allocation; stochastic processes; telecommunication traffic; Internet-scale datacenter; QoS metric; capacity allocation; distributed IDC; dynamic demand; dynamic traffic; electricity-price diversity; energy efficiency; load shifting; outage probability; server capacity; service demand; service performance; stochastic multiplexing gain; total energy cost; Electricity; Energy consumption; Multiplexing; Power demand; Quality of service; Resource management; Servers;
Conference_Titel :
Quality of Service (IWQoS), 2011 IEEE 19th International Workshop on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4577-0104-7
Electronic_ISBN :
1548-615X
DOI :
10.1109/IWQOS.2011.5931322