2.3.1 Advantages of virtualized systems
Virtualized systems are attracting attention as a technology that makes the most of excess system resources. For example, with the current one-server, one-application paradigm, most servers consistently have excess resources. Specifically, except for times of server job congestion, usually only 5% to 7% of resources are used. Virtualized systems are a way to solve this issue.
Virtualized systems also have the following advantages:
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Operating systems and devices can be shared and centrally managed.
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Several old servers can be made into a virtual server, and run as one new server.
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The number of servers can be reduced, cutting electricity and air conditioning costs.