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VMware vSphere Design Essentials

You're reading from   VMware vSphere Design Essentials Unleash the performance, availability, and workload efficiency of your virtual data center using this fast-paced guide

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Product type Paperback
Published in Jun 2015
Publisher
ISBN-13 9781784390044
Length 176 pages
Edition 1st Edition
Tools
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Toc

Table of Contents (8) Chapters Close

Preface 1. Essentials of VMware vSphere FREE CHAPTER 2. Designing VMware ESXi Host, Cluster, and vCenter 3. Designing VMware vSphere Networking 4. Designing VMware vSphere Storage 5. Designing VMware vRealize A. About VMware vSphere 6.0 Index

Designing ESXi

The VMware ESXi design comprises the fundamental OS and processes that run on top of ESXi, and it is called VMkernel. VMkernel runs all processes on ESXi, including ESXi agents, management software, as well as virtual machines. ESXi gains control over hardware devices on the physical servers and manages resources for the virtual machines. The main processes that route on top of the ESXi VMkernel are as follows:

  • Direct Console User Interface (DCUI)
  • Virtual Machine Monitor (VMM)
  • Several agents used to enable high-level VMware infrastructure management from remote applications
  • Common Information Model (CIM)
    Designing ESXi

VMkernel is a POSIX-like OS developed by VMware and provides functionalities similar to other OS', such as control, process creation, process threads, signals, and filesystems. ESXi is designed precisely to support multiple VMs and provide core functionalities such as resource scheduling, I/O stacks, device drivers, and so on.

VMware ESXi was restructured to permit VMware...

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