Interacting Markov Chain based Hierarchical Approach for Cloud Services
Richik N. Ghosh, Vijay K. Naik, D.S. Kim, K.S. Trivedi · UC Research Repository (University of Canterbury) · 2010
In this paper, we describe an analytical modeling approach for performance and dependability analysis of cloud provided services.We use infrastructure-as-a-service as an example of a cloud based service, where service availability and provisioning delays are key SLAs to users while cost reductions are important to service providers.A novelty of our approach is in reducing the complexity of the analysis by dividing the overall model into multiple interacting sub-models and then obtaining the overall solution by iteration over sub-model solutions.This results in a high fidelity model that is scalable.We summarize our modeling approach, showcase our ongoing work through initial results and outline future avenues of research using such an approach.