AbstractWith the growing popularity of cloud-based data centres as the enterprise IT platform of choice, there is a need for effective management strategies capable of maintaining performance within SLA and QoS parameters when responding to dynamic conditions such as increasing demand. Since current management approaches in the cloud infrastructure, particularly for data-intensive applications, lack the ability to systematically quantify performance trends, static approaches are largely employed in the allocations of resources when dealing with volatile demand in the infrastructure. We present analytical models for characterising cache performance trends at storage cache nodes. Practical validations of cache performance for derived theoretical trends show close approximations between modelled characterisations and measurement results for user request patterns involving private datasets and publicly available datasets. The models are extended to encompass hybrid scenarios based on concurrent requests of both private and public content. Our models have potential for guiding (a) efficient resource allocations during initial deployments of the storage cloud infrastructure and (b) timely interventions during operation in order to achieve scalable and resilient service delivery.
Cache performance models for quality of service compliance in storage clouds
Ernest Sithole,Aaron McConnell,S. McClean,G. Parr,B. Scotney,A. Moore,D. Bustard
Published 2013 in Journal of Cloud Computing: Advances, Systems and Applications
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- Publication year
2013
- Venue
Journal of Cloud Computing: Advances, Systems and Applications
- Publication date
2013-01-10
- Fields of study
Computer Science, Engineering
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