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Getting Started with Nano Server by Charbel Nemnom

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Containers versus virtual machines

If you think about a virtual machine as shown in Figure 2, each VM typically includes the app itself, the required binaries, libraries, and a guest OS, which may consist of multiple GBs of data. This runs on top of a hypervisor, and consumes a slice of resources from the underlying host operating system. One advantage of the virtualization approach is that the virtual machines can have different guest operating systems from one another, and from the host operating system, which provides considerable flexibility and high utilization. In addition, virtual machines can be flexibly migrated from one host to another, preserving state, and supplying administrators with considerable flexibility, especially in scenarios ...

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