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Learning PowerCLI for VMware VSphere

Chapter 2. Learning Basic PowerCLI Concepts

While learning something new, you always have to learn the basics first. In this chapter, you will learn some basic PowerShell and PowerCLI concepts. Knowing these concepts will make it easier for you to learn the advanced topics. We will cover the following topics in this chapter:

Using the Get-Command, Get-Help, and Get-Member cmdlets
Using providers and PSDrives
Using arrays and hash tables
Creating calculated properties
Using raw API objects with ExtensionData or Get-View
Extending PowerCLI objects with the New-VIProperty cmdlet
Working with vSphere folders

What you will learn

Download and install PowerCLI

Add hosts to VMware vCenter Server

Configure vSphere Auto Deploy

Use the esxcli command from PowerCLI

Create OS Customization Specs

Monitor virtual machine performance

Configure distributed virtual switches and storage I/O Control

Enable VM and Application Monitoring

Manage licenses for multiple hosts to migrate them easily

Configure an alarm to monitor your networks virtual machines

Generate a goodlooking HTML report in no time

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M. Poore Mar 05, 2014

Unless you’re new to vSphere, you’ll probably have heard about PowerCLI. You may already be using it regularly or perhaps you’ve found the occasional use for it and used one or more of the many excellent scripts that can be found on the internet. Either way, unless you’re an advanced user (or even a guru) of PowerCLI, "Learning PowerCLI” is well worth a look in my opinion. The author has posted many times on his blog with useful scripts, one-liners and tips for using PowerCLI in the past. Several times an issue that I’ve had has lead me to his blog so I was very interested to see if his knowledge and experience had translated well into book form.Although I did read through the book from cover to cover, it’s not really that sort of book. PowerCLI and Powershell are technologies that you can easily dip into when a specific need arises and I found that trying to absorb the entire contents of the book was hard-going. That shouldn’t be taken as any sort of slight against the author’s writing style, it’s just the subject matter doesn’t lend itself to being the kind of book that you can’t put down. It is, though, the kind of book that you want to pick up and learn from. I’ve been using Powershell and PowerCLI for many years and I was surprised at the number of things that I learned!People with a very strong grasp of Powershell and PowerCLI already might find that there’s a limit to what they gain from the book but beginners and intermediates alike should find that there’s plenty to take away and use.

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David Hesse Mar 15, 2014

Ich habe mir dieses Buch in der Kindle Edition gekauft und lese es entweder in der S-Bahn auf dem Weg zur Arbeit, oder auch am Arbeitsplatz-Computer, wenn ich mal schnell einen Befehl nachschauen muss.Der Inhalt ist methodisch gut aufbereitet. Beginnend von der Installation über die erste Einrichtung bis hin zu komplexen Abfragen wird an alles gedacht und man ist auf Grund des methodisch didaktischen Aufbaus der einzelnen Kapitel und dem Bezug zur Praxis anhand von nachvollziehbaren Beispielen, niemals mit dem Inhalt überfordert und möchte das gelernte gleich ausprobieren.Ich benutze die vSphere Power CLI weniger als Deployment/Automation Tool, aber dafür mehr als Reporting-Tool, da mit mit den vielen CMD-lets eine Menge von Konfigurationsabfragen machen kann, welche sonst mühsam über den vSphere Client, oder anderen Third Party Tools extrahieren müsste um mal eben schnell einen Report an meinen Manager schicken zu können.Die vSphere Power CLI gehört neben dem vSphere CLI, welches auf Perl beruht zu den wichtigsten Werkzeugen eines jeden VMware Admins. Beide Tools ergänzen sich und haben Ihre Daseinsberechtigung. The vSphere Power CLI entwickelt sich jedoch auf Grund der wachsenden Popularität der Windows PowerShell und der immer grösser werdenden PowerShell Community dessen aktive Mitglieder auch mit neuen Snippets und eigenen Scripts zur Verbesserung und Erweiterung des Anwendungsspektrums beitragen zum Remote Management Tools Nr. 1 eines jeden VMware Administrators.Dieses Buch ist allemal die Investition Wert. Für Leute wie mich die eine zentrale Informationsquelle den verstreuten Informationen im Internet bevorzugen ist ein gut geschriebenes Buch wie dieses immer die erste Wahl.

PowerCLI.de Apr 01, 2014

VMware PowerCLI is a set of PowerShell cmdlets for the administration of VMware vSphere and vCloud products.Three Weeks ago Packt Publishing released the book Learning PowerCLI. I read the book and here is my review.The authorRobert van den Nieuwendijk is an IT professional from the Netherlands. Since 2011, he writes his own blog about Microsoft PowerShell, VMware vSphere and VMware PowerCLI. In 2012 and 2013 he was awarded with the vExpert title by VMware.The audienceThe book was written for VMware vSphere administrators with an interest in automating vSphere administration. Though you will get some basic knowledge about VMware vSphere while reading this book, vSphere administration fundamentals are recommended.In my opinion, you should also bring some experience with Microsoft PowerShell and basic scripting or programming concepts.You don’t need any experience with VMware PowerCLI. The book covers everything you need to get you started.The requirementsTo run any of the commands or scripts you find in this book, you will need the following software:• Microsoft PowerShell 2.0 or higher (comes with Microsoft Windows)• VMware PowerCLI (a free product from VMware)• VMware vCenter server• VMware ESXiThe last two products are available with a free 60-day evaluation license. Of course, a full license will also do. VMware ESXi free edition instead is limited to read-only access, which is not being able to modify any settings with PowerCLI.The structureThe first chapter covers PowerCLI basics. You will learn how to install PowerCLI, connect to and disconnect from a host or vCenter server, and how to retrieve a list of your hosts or virtual machines.The next two chapters cover PowerShell and PowerCLI basics, e. g.• finding commands and getting command help• PowerShell Providers and PSDrives• creating, examine and using PowerShell objects• working with PowerCLI objects• using the PowerShell pipelineThese chapters will not only give you a basic understanding of VMware PowerCLI, but also improve your knowledge in fundamental PowerShell concepts.The following six chapters are a detailed commandline reference for the administration of hosts, virtual machines, virtual networks, storage, clustering and VMware vCenter server. You will learn which cmdlets are available, what they do, and how to use them.The final chapter is about VMware vSphere reporting and shows you how to retrieve various data from your environment and create exports and reports.ConclusionThe book is very, very detailed. That’s a good thing especially for beginners and as a reference, but probably too much information to read one chapter after another.“Learning PowerCLI” offers a great introduction to the automation of VMware vSphere. It’s not a book about how to automate your daily administration tasks. It is a book about PowerCLI concepts and cmdlets.I suggest to study the chapters 1-3 thoroughly and to use the other chapters as a reference whenever Get-Command and Get-Help do not give you enough information.If you already work with PowerShell and PowerCLI, it can help to increase your knowledge. I’ve been using both for years and got a lot of new information and ideas from this book.

Marco C. Oct 13, 2014

An essential guide, for beginners but also with a lot of insights into inner aspects of Powercli scripting.

Hernán Mar 14, 2014

The first chapter explains how to download and install PowerCLI then move on to issues like change policy tool execution and logging in to servers and how to avoid annoying but always useful warnings about certificates. Also makes a journey on the use of credentials, filtering objects and as inventories and get listings from servers to which we connect.In chapter two usage is explained cmdlets , which are the proper instructions with which we can perform all tasks with PowerCLI. It looks like you can use arrays and hash tables, the use of properties and working with folders vSphere.The third chapter explores the use of PowerShell and working with objects, while in chapter four and five, each complete expatiate on the management of hosts and virtual machines, explaining clearly as restarting services, create, modify and remove virtual machines, manage storage controllers, network and upgrade the environment. It also explains how you can create snapshots and run guest operating system commands on the virtual machines.Chapter six is entirely dedicated to network management in VMware environments, focusing on the standard virtual switches and distributed, as well as management VLANs and NIOC. Chapter seven focuses on his side's exclusive virtual storage management, dealing with datastores, policies pathing, and storage clusters as absolutely everything, can be controlled and managed from PowerCLI. The eighth chapter deals with clusters of tasks and HA. The ninth and penultimate is about showing how to use PowerCLI to manage vCenter Server and all tasks VMware administrator requires. And finally, the tenth chapter explains how to harness the power and versatility of PowerCLI to generate useful reports and metrics that serve to conduct a detailed environmental analysis.In conclusion, is an excelent guide to inmerse into PowerCLI world.

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.

What do you get with Print?

Learning PowerCLI for VMware VSphere

Chapter 2. Learning Basic PowerCLI Concepts

Using the Get-Command, Get-Help, and Get-Member cmdlets

Using Get-Command

Using providers and PSDrives

Using providers

Using arrays and hash tables

Creating calculated properties

Using raw API objects with ExtensionData or Get-View

Using the ExtensionData property

Extending PowerCLI objects with the New-VIProperty cmdlet

Working with vSphere folders

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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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