This simple command-line tool helps you keep ahead of your virtual infrastructure.
The simplest virtualization scenarios are very easy to manage. In the real world, though, virtualization does not always simplify system administration. In fact, many of the most powerful uses of virtualization result in additional administrative tasks and challenges. For example, large data centers use virtualization to consolidate several servers onto the same physical hardware, ,thereby minimizing space, cost, and power requirements. These virtual machines (VMs) can migrate between servers to achieve higher uptimes and flexible load balancing. However, managing such a complex virtual infrastructure is at least as challenging as administering the equivalent number of separate server systems, and it requires very different skills.
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