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Introductie Windows Server 2016

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6 C H A P T E R 1 | The software-defined datacenter The next section of this chapter focuses on the exciting new features of Windows Server 2016—many of which will work in conjunction with System Center and Azure—that can transform your datacenter by making it possible for you to do the following: Build a software-defined foundation Automate and secure your infrastructure Extend your infrastructure to the cloud on demand Building a software-defined foundation Figure 1-2 illustrates that there are three basic parts in the architecture of an SDDC. You can think of these different parts as "planes" because each spans the entire infrastructure while complementing one another. Figure 1-2 Abstraction layers of the software-defined datacenter From the bottom up, the three planes of the SDDC are as follows: Data plane This plane represents an abstraction of the underlying compute, networking, and storage hardware of the physical infrastructure. The data plane is where network traffic actually flows on and through hardware, such as switches, routers, server systems, storage devices, and so on. It's important to understand that in the software-defined paradigm, these hardware devices are not the data plane itself; instead, the data plane consists of various abstractions of the underlying hardware. For example, a VM is an example of a compute resource on the data plane, whereas a virtual network is an example of a network resource. Control plane This plane represents an abstraction of the portion of the infrastructure that controls how the network traffic flows on the data plane. You can think of the control plane as the software and protocols that coordinate the resources on the data plane and provide decision logic to ensure that the datacenter functions as a distributed system as intended. The control plane is therefore a higher level of abstraction than the data plane. An example of a control plane element is the Hyper-V Network Virtualization (HNV) functionality introduced in Windows Server 2012 and built in to succeeding releases of the Windows Server platform. Management plane This plane represents an abstraction of the portion of the infrastructure with which you create, deploy, manage, monitor, and maintain policy for elements of the control plane. The management plane is thus the highest level of abstraction for the software-defined datacenter. An example of a management plane element is System Center Virtual Machine Manager, which you can use to configure and manage the VM networks, virtual subnets, logical networks, and other abstractions needed to implement HNV in a datacenter.

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