Availability modeling and analysis of a virtualized system

TitleAvailability modeling and analysis of a virtualized system
Publication TypeJournal Article
Year of Publication2009
AuthorsDS Kim, F Machida, and KS Trivedi
Journal2009 15th Ieee Pacific Rim International Symposium on Dependable Computing, Prdc 2009
Start Page365
Pagination365 - 371
Date Published12/2009
Abstract

This paper develops an availability model of a virtualized system. We construct non-virtualized and virtualized two hosts system models using a two-level hierarchical approach in which fault trees are used in the upper level and homogeneous continuous time Markov chains (CTMC) are used to represent sub-models in lower level. In the models, we incorporate not only hardware failures (e.g., CPU, memory, power, etc) but also software failures including Virtual Machine Monitor (VMM), Virtual Machine (VM), and application failures. We also incorporate high availability (HA) service and VM live migration in the virtualized system. Metrics we use are system steady state availability, downtime in minutes per year and capacity oriented availability. © 2009 IEEE.

DOI10.1109/PRDC.2009.64
Short Title2009 15th Ieee Pacific Rim International Symposium on Dependable Computing, Prdc 2009