Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/50080

How to Improve Cloud Services Availability? Investigating the Impact of Power and It Subsystems Failures

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Title:How to Improve Cloud Services Availability? Investigating the Impact of Power and It Subsystems Failures
Authors:Rosendo, Daniel
Leoni, Guto
Gomes, Demis
Moreira, André
Gonçalves, Glauco
show 4 moreEndo, Patricia
Kelner, Judith
Sadok, Djamel
Mahloo, Mozhgan
show less
Keywords:Service Analytics
availability, cloud computing, data center, power subsystem
Date Issued:03 Jan 2018
Abstract:The cloud data center is a complex system composed of power, cooling, and IT subsystems. The power subsystem is crucial to feed the IT equipment. Power disruptions may result in service unavailability. This paper analyzes the impact of the power subsystem failures on IT services regarding different architecture configurations based on TIA-942 standard such as non-redundant, redundant, concurrently maintainable, and fault tolerant. We model both subsystems, power and IT, through Stochastic Petri Net (SPN). The availability results show that a fault tolerant power and IT configuration reduces the downtime from 54.1 to 34.5 hours/year when compared to a non-redundant architecture. The sensibility analysis results show that the failure and repair rates of the server component in a fault tolerant system present the highest impact on overall data center availability.
Pages/Duration:10 pages
URI/DOI:http://hdl.handle.net/10125/50080
ISBN:978-0-9981331-1-9
DOI:10.24251/HICSS.2018.193
Rights:Attribution-NonCommercial-NoDerivatives 4.0 International
https://creativecommons.org/licenses/by-nc-nd/4.0/
Appears in Collections: Service Analytics


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