A Petri Net Model for High Availability in Virtualized Local Disaster Recovery

Aye Myat Myat Paing; Ni Lar Thein

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A Petri Net Model for High Availability in Virtualized Local Disaster Recovery

http://hdl.handle.net/20.500.12678/0000006195

Publication type
		Conference paper
Upload type
		Publication
Title
	Title	A Petri Net Model for High Availability in Virtualized Local Disaster Recovery
	Language	en
Publication date		2011-10-03
Authors
		Aye Myat Myat Paing
		Ni Lar Thein
Description
		Effective business continuity strategies need to have both high availability (HA) and disaster recovery (DR). Traditional high availability and disaster recovery solutions require a great deal of duplicate hardware and software. Virtualization affords significant cost and performance advantages over more traditional disaster recovery options. In this paper, the virtualized local disaster recovery is proposed in order to provide a higher level of availability for business continuity. Effective way to use the resources at both primary site and disaster recovery site, active-active clustering architecture is employed in this virtualized local DR. The software failure due to software aging problem which can decrease the availability of the system is considered. The software rejuvenation methodology and virtualization technology is combined to counteract the software aging problem. To get higher level of availability in local disaster recovery, virtualization, clustering and software rejuvenation technology are integrated. A stochastic Petri net model is constructed to describe the behavior of virtualized local DR. To analyze the availability of the proposed model, numerical derivation is presented. The numerical derivation results are validated with the evaluation through SHARPE simulation tool.
Keywords
		availability, clustering, local disaster recovery, stochastic Petri nets, virtualization
Conference papers
		ICICM
		October, 2011
		2011 International Conference on Information Communication and Management
		Singapore