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A Comprehensive Availability Modeling and Analysis of a Virtualized Servers System Using Stochastic Reward Nets
Joint Authors
Nguyen, Tuan Anh
Kim, Dong Seong
Park, Jong Sou
Source
Issue
Vol. 2014, Issue 2014 (31 Dec. 2014), pp.1-18, 18 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2014-08-05
Country of Publication
Egypt
No. of Pages
18
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
It is important to assess availability of virtualized systems in IT business infrastructures.
Previous work on availability modeling and analysis of the virtualized systems used a simplified configuration and assumption in which only one virtual machine (VM) runs on a virtual machine monitor (VMM) hosted on a physical server.
In this paper, we show a comprehensive availability model using stochastic reward nets (SRN).
The model takes into account (i) the detailed failures and recovery behaviors of multiple VMs, (ii) various other failure modes and corresponding recovery behaviors (e.g., hardware faults, failure and recovery due to Mandelbugs and aging-related bugs), and (iii) dependency between different subcomponents (e.g., between physical host failure and VMM, etc.) in a virtualized servers system.
We also show numerical analysis on steady state availability, downtime in hours per year, transaction loss, and sensitivity analysis.
This model provides a new finding on how to increase system availability by combining both software rejuvenations at VM and VMM in a wise manner.
American Psychological Association (APA)
Nguyen, Tuan Anh& Kim, Dong Seong& Park, Jong Sou. 2014. A Comprehensive Availability Modeling and Analysis of a Virtualized Servers System Using Stochastic Reward Nets. The Scientific World Journal،Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-1048551
Modern Language Association (MLA)
Nguyen, Tuan Anh…[et al.]. A Comprehensive Availability Modeling and Analysis of a Virtualized Servers System Using Stochastic Reward Nets. The Scientific World Journal No. 2014 (2014), pp.1-18.
https://search.emarefa.net/detail/BIM-1048551
American Medical Association (AMA)
Nguyen, Tuan Anh& Kim, Dong Seong& Park, Jong Sou. A Comprehensive Availability Modeling and Analysis of a Virtualized Servers System Using Stochastic Reward Nets. The Scientific World Journal. 2014. Vol. 2014, no. 2014, pp.1-18.
https://search.emarefa.net/detail/BIM-1048551
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1048551