Virtualization

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

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Executive Summary

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.

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