Facade VM - to provide a single point of contact for a large scale system consisting of many virtual machines to view collection as a singleunit.
Facade VM——为包含众多虚拟机的大型可伸缩系统提供单一的契约点，以单元的形式查看集合。
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Having proved the principle in a single-unit device, Kim and Han plan to produce a 100-unit device to demonstrate the scaling-up of the process, followed by a 10,000-unit system.