Joint workload and battery scheduling for data center energy cost minimization

In practice, some workloads are delay-tolerant, which can be adopted to reduce energy cost of Internet data centers by utilizing the temporal diversity of electricity prices, i.e., executing the workloads when prices are low and delay the workloads when prices are high. To avoid the penalty for violating the service level agreements, heterogeneous service delay guarantees must be provided by Internet data center operators. Moreover, to fully utilize the temporal diversity of electricity prices, energy storage devices are incorporated. Thus, in this chapter, we focus on designing a jointworkload and energy storage schedulingwith heterogeneous service delay guarantees for data center energy cost minimization and propose an effective algorithm to save energy cost. © Springer-Verlag Berlin Heidelberg 2015.