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2.5. Disaster Recovery

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Disaster recovery is quicker and easier when the systems are virtualized. On a physical system, if something serious goes wrong, a complete reinstall of the operating system is usually required, resulting in hours of recovery time. However, if the systems are virtualized this is much faster due to the migration ability. If the requirements for live migration are followed, virtual machines can be restarted on another host, and the longest possible delay would be in restoring guest data. Also, because each of the virtualized systems are completely separate to each other, one system's downtime will not affect any others.
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