Virtualization of servers is the strongest trend in today's data center. Boiling down racks of servers into smaller, cheaper, and more efficient virtual machine farms is a key direction. While virtualization can reduce costs in many ways, it has a variety of implications in disaster control, capacity planning, system management, and security.
This white paper focuses on six key issues-and strategies for dealing with them-that will occur when application servers are combined into large virtual machine servers, including different security zones sharing the same physical infrastructure, traffic inspection and logging problems, high availability (HA) and capacity planning difficulties, mobility of virtual machines across physical servers, and a sprawling number of networks surrounding each virtual server.
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