Twelve Virtualization Myths Debunked - Slide 8

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Performance myth: Virtual machines performance less than advertised.

While it is possible that some overeager sales people promised more than they could deliver in the past, this myth seems to be rooted in a lack of understanding. CPUs designed for virtualization, gigabit and 10-gigabit Ethernet, higher and higher performance hard disks and their controllers, all make this clearly myth. In addition, virtualization software has improved to the extent that virtual machine performance now challenges physical machine performance.

Virtualization, one of the fastest growing trends in IT, lets any organization run multiple server functions on a single computer. Virtualization also makes it easier to start up new server emulations quickly. In case of failure, organizations can move server functions to new computers without interrupting service. Beyond saving a lot of money on large sites, virtualization is also moving to PC networks and serves as a foundation for cloud computing. Many myths surround virtualization. Some started when past limitations still existed. Other myths get started and spread by those who have separate agendas or those who have a limited understanding of virtualization. Here are some of the most common myths, identified by Global Knowledge.

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