Modeling the use of spot instances for cost reduction in cloud computing adoption using a Petri net framework

An effective decision-making about using Infrastructure as a Service (IaaS) resources in cloud computing projects is still a challenge to managers. We need to optimize resources use in cloud services, to obtain financial success in cloud projects. In this work, we propose a Petri net framework to model possible cost savings using public clouds spot instances pricing scheme. The results from initial simulations indicate that spot instances can be a very interesting option for savings in autoscaling process.