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Learning VMware vSphere

Learning VMware vSphere

By : Rebecca Fitzhugh, Abhilash G B
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Learning VMware vSphere

Learning VMware vSphere

By: Rebecca Fitzhugh, Abhilash G B

Overview of this book

Computer virtualization is a method to enable the running of multiple application workloads on a machine to achieve efficient utilization and reduce the number of physical machines in a data center. This has now become the foundation of many modern day data centers. What began as a technology to virtualize x86 architecture has now grown beyond the limits of a server’s hardware and into the realm of storage and network virtualization. VMware is currently the market leader in developing data center virtualization solutions. This book goes into the details of designing and implementing VMware solutions that form the foundation of a VMware infrastructure. The book begins by introducing you to the concepts of server virtualization followed by the architecture of VMware’s hypervisor – ESXi and then by its installation and configuration. You then learn what is required to manage a vSphere environment and configure advanced management capabilities of vCenter. Next you are taken through topics on vSphere Networking, Storage, ESXi Clustering, Resource Management and Virtual Machine Management. You will then be introduced to SSL Certificate Management and its use in a vSphere environment. Finally, you will learn about the lifecycle management of a vSphere environment by effectively monitoring, patching and upgrading vSphere components using Update Manager. By the end of the book, you will know how to use VMware’s vSphere suite of components to lay the foundation of a modern day virtual infrastructure.
Table of Contents (13 chapters)
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7
7. Understanding Host Profiles, Image Profiles, and Auto Deploy

vSphere Distributed Virtual Switch (VDS)


A vSphere distributed switch (VDS) was primarily built to reduce the administrative overhead involved in maintaining the network configuration in a large environment. A very common misconception is that VDS is a single switch that spans over multiple ESXi hosts. The fact is that it is not. All it does is to offer a single management plane for all the host data planes (hidden software switches) distributed on the ESXi hosts, hence the name distributed switch:

The hidden software switch is not a standard switch per se, as it offers much greater capabilities when compared to a vSphere standard switch. The management layer resides on the vCenter server managing the ESXi hosts. Hence, the VDS can only be created/managed using the vCenter server.

The Datacenter object in the vCenter inventory is the boundary for the VDS, meaning it can span across clusters but not across the data centers (from a vCenter inventory standpoint). As with every other object...

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Learning VMware vSphere
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