Modeling Service Execution on Data Centers for Energy Efficiency and Quality of Service Monitoring

This work provides a system modeling approach to describe a virtualized data center environment running a business process. This model allows the collection of simulation data at different workload rates that can be used as a dataset for reasoning about quality of service and energy efficiency issues related to the process. The model overcomes the issue of obtaining real data from data center administrators and collecting relevant information needed for studying the process behavior. The model is flexible and can be used to model data centers of different dimensions and characteristics. It can also be used for "what-if" analysis about the system configuration, predicting the outcome of a modification over energy efficiency and quality of service.