Managing energy and server resources in hosting centers
SOSP '01 Proceedings of the eighteenth ACM symposium on Operating systems principles
A Diffusion Approximation for a Markovian Queue with Reneging
Queueing Systems: Theory and Applications
Analysis of a Multiserver Queue with Setup Times
Queueing Systems: Theory and Applications
The cost of a cloud: research problems in data center networks
ACM SIGCOMM Computer Communication Review
Energy-Efficient Cloud Computing
The Computer Journal
Performance Evaluation
Profit-Aware Server Allocation for Green Internet Services
MASCOTS '10 Proceedings of the 2010 IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems
Service center trade-offs between customer impatience and power consumption
Performance Evaluation
A queuing analysis of an energy-saving mechanism in data centers
ICOIN '12 Proceedings of the The International Conference on Information Network 2012
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We consider the problem of managing a service center where it is desirable to keep power consumption low. Customers may be patient or they may defect (i.e. leave the system) if waiting times are too long. Several blocks of servers are designated as 'reserves'. They are powered up and down when the queue size increases above or falls below certain thresholds. Objective functions to be minimized take into account the number of servers that are powered up, the number of occasions when blocks are powered up and a performance measure involving either waiting time or number of jobs lost through defections. The question of how to choose the blocks of reserves is answered by analyzing a suitable queueing model. Heuristic policies are proposed and numerical results are presented.