We argue that there is a continuum between completely manual and completely automated management of networks and distributed applications. The ability to visualize the status of the network and applications inside a data center allows human users to rapidly assess the health of the system \u2013 quickly identifying problems that span across components and solving problems that challenge fully autonomic and machine-learning based management systems. We present a case study that highlights the requirements on visualization systems designed for the management of networks and applications inside large data centers. We explain the design of the Visual-I system that meets these requirements and the experience of an operations team usnig Visual-I<\/p>\n","protected":false},"excerpt":{"rendered":"
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