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Learning PowerCLI for VMware VSphere

You're reading from   Learning PowerCLI for VMware VSphere Automate your Vmware vSphere environment by learning how to install and use PowerCLI. This book takes a practical tutorial approach that will have you automating your daily routine tasks in no time.

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Product type Paperback
Published in Feb 2014
Publisher
ISBN-13 9781782170167
Length 374 pages
Edition Edition
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Author (1):
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Robert van den Nieuwendijk Robert van den Nieuwendijk
Author Profile Icon Robert van den Nieuwendijk
Robert van den Nieuwendijk
Robert van den Nieuwendijk is an IT veteran from the Netherlands with over thirty years of experience in Information Technology. He holds a bachelor degree in software engineering. After working a few years as a programmer of air traffic control and vessel traffic management systems, he started his own company Van den Nieuwendijk Informatica in 1988. Since then he has worked as a freelance systems administrator of OpenVMS, Windows Server, Linux, and VMware vSphere systems, for Dutch governmental organizations and cloud providers. During winter he is also a ski and snowboard instructor at an indoor ski school. With his background as a programmer, he always tries to make his job easier by writing programs or scripts to perform repeating tasks. In the past, he used the C programming language, OpenVMS DCL, Visual Basic Script and KiXtart to do this. Now, he uses Microsoft PowerShell and VMware PowerCLI for all of his scripting work. Robert is a frequent contributor and moderator at the VMware VMTN Communities. Since 2012 VMware awarded him the vExpert title for his significant contributions to the community and a willingness to share his expertise with others. He has a blog at http://rvdnieuwendijk.com where he writes mainly about VMware PowerCLI, Microsoft PowerShell, and VMware vSphere. If you want to get in touch with Robert, then you can find him on Twitter. His username is @rvdnieuwendijk. Robert is also the author of Learning PowerCLI, Packt Publishing.
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Toc

Table of Contents (17) Chapters Close

Learning PowerCLI
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
1. Introduction to PowerCLI 2. Learning Basic PowerCLI Concepts FREE CHAPTER 3. Working with Objects in PowerShell 4. Managing vSphere Hosts with PowerCLI 5. Managing Virtual Machines with PowerCLI 6. Managing Virtual Networks with PowerCLI 7. Managing Storage with PowerCLI 8. Managing High Availability and Clustering with PowerCLI 9. Managing vCenter with PowerCLI 10. Reporting with PowerCLI Index

Enabling and disabling maintenance mode

If you want to shut down, patch, upgrade, or reconfigure a host, you do not want any virtual machines running on the host. If you put a host in maintenance mode, you are sure that no virtual machines will be moved to or started on the host. If the host is running on a fully automated DRS-enabled cluster, the DRS will move the running virtual machines from the host to other hosts in the cluster using vMotion.

The next screenshot of the vSphere Web Client shows the different DRS automation levels that a cluster can have:

To put a host in maintenance mode, you have to use the Set-VMHost cmdlet.

This cmdlet has the following syntax:

Set-VMHost [-VMHost] <VMHost[]> [[-State] <VMHostState>] [-VMSwapfilePolicy <VMSwapfilePolicy>] [-VMSwapfileDatastore <Datastore>] [-Profile <VMHostProfile>] [-Evacuate] [-TimeZone <VMHostTimeZone>] [-LicenseKey <String>] [-Server <VIServer[]>] [-RunAsync] [-WhatIf] [-Confirm] ...
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Authors (1)

Profile icon Robert van den Nieuwendijk
Robert van den Nieuwendijk
Robert van den Nieuwendijk is an IT veteran from the Netherlands with over thirty years of experience in Information Technology. He holds a bachelor degree in software engineering. After working a few years as a programmer of air traffic control and vessel traffic management systems, he started his own company Van den Nieuwendijk Informatica in 1988. Since then he has worked as a freelance systems administrator of OpenVMS, Windows Server, Linux, and VMware vSphere systems, for Dutch governmental organizations and cloud providers. During winter he is also a ski and snowboard instructor at an indoor ski school. With his background as a programmer, he always tries to make his job easier by writing programs or scripts to perform repeating tasks. In the past, he used the C programming language, OpenVMS DCL, Visual Basic Script and KiXtart to do this. Now, he uses Microsoft PowerShell and VMware PowerCLI for all of his scripting work. Robert is a frequent contributor and moderator at the VMware VMTN Communities. Since 2012 VMware awarded him the vExpert title for his significant contributions to the community and a willingness to share his expertise with others. He has a blog at&nbsp;http://rvdnieuwendijk.com where he writes mainly about VMware PowerCLI, Microsoft PowerShell, and VMware vSphere. If you want to get in touch with Robert, then you can find him on Twitter. His username is @rvdnieuwendijk. Robert is also the author of Learning PowerCLI, Packt Publishing.
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