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Lookup NU author(s): Charles Kubicek
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Data centres which host Web services for other organisations and users in a Grid environment must provide for Quality of Service (QoS) requirements to be specified to ensure deployed services perform as desired. As services hosted by a data centre receive unpredictable rates of demand, servers must be allocated dynamically to service pools that are over utilised to avoid breaking QoS requirements. This work describes how a cost based stochastic model for resource allocation is used in data centre middleware to balance server utilisation, and how the model was used to enable a data centre to meet QoS requirements. The stochastic QoS model is compared to two other QoS models and is shown to be the most effective in a number of experiments. © 2006 Elsevier B.V. All rights reserved.
Author(s): Kubicek C
Publication type: Article
Publication status: Published
Journal: Electronic Notes in Theoretical Computer Science
ISSN (print): 1571-0661
Publisher: Elsevier BV
Notes: Proceedings of the Second International Workshop on the Practical Application of Stochastic Modeling (PASM 2005)
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