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Optimal provisioning of servers for hosting services of multiple types

Lookup NU author(s): Dr Paul EzhilchelvanORCiD, Emeritus Professor Isi Mitrani



This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (CC BY-NC-ND).


© 2017 Elsevier B.V. Services of different types are provided to paying customers by instantiating Virtual Machines on servers hired from a cloud. Different VMs can share a server, subject to one or more resource constraints. Incoming jobs whose resource requirements cannot be satisfied are lost. The objective is to maximize the long-term average profit per unit time. A single-server model is analyzed exactly and the results provide approximations for the system with n servers. The latter is also solved exactly when the servers are dedicated and when the VMs can migrate instantaneously. Numerical examples and comparisons with simulations are presented.

Publication metadata

Author(s): Ezhilchelvan P, Mitrani I

Publication type: Article

Publication status: Published

Journal: Simulation Modelling Practice and Theory

Year: 2017

Volume: 75

Pages: 17-28

Print publication date: 01/06/2017

Online publication date: 31/03/2017

Acceptance date: 25/03/2017

Date deposited: 26/09/2017

ISSN (print): 1569-190X

Publisher: Elsevier BV


DOI: 10.1016/j.simpat.2017.03.011


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