Book Image

Learning PowerCLI - Second Edition

By : Robert van den Nieuwendijk
Book Image

Learning PowerCLI - Second Edition

By: Robert van den Nieuwendijk

Overview of this book

VMware vSphere PowerCLI, a free extension to Microsoft Windows PowerShell, enables you to automate the management of a VMware vSphere or vCloud environment. This book will show you how to automate your tasks and make your job easier. Starting with an introduction to the basics of PowerCLI, the book will teach you how to manage your vSphere and vCloud infrastructure from the command line. To help you manage a vSphere host overall, you will learn how to manage vSphere ESXi hosts, host profiles, host services, host firewall, and deploy and upgrade ESXi hosts using Image Builder and Auto Deploy. The next chapter will not only teach you how to create datastore and datastore clusters, but you’ll also work with profile-driven and policy-based storage to manage your storage. To create a disaster recovery solution and retrieve information from vRealize Operations, you will learn how to use Site Recovery Manager and vRealize Operations respectively. Towards the end, you’ll see how to use the REST APIs from PowerShell to manage NSX and vRealize Automation and create patch baselines, scan hosts against the baselines for missing patches, and re-mediate hosts. By the end of the book, you will be capable of using the best tool to automate the management and configuration of VMware vSphere.
Table of Contents (22 chapters)
Learning PowerCLI Second Edition
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Rescanning for new storage devices


After creating LUN on your Fibre Channel storage system and presenting LUN to your ESXi servers, you have to rescan HBAs on the ESXi servers before you can create a datastore on LUN. An ESXi host will not see newly attached LUN before a rescan is performed. You can use the Get-VMHostStorage cmdlet to rescan the HBAs of a host. The Get-VMHostStorage cmdlet has the following syntax; the first parameter set is the default:

Get-VMHostStorage [-VMHost] <VMHost[]> [-Refresh] [-RescanAllHba]
    [-RescanVmfs] [-Server <VIServer[]>] [<CommonParameters>]

The second parameter set is for retrieving host storage by ID:

Get-VMHostStorage -Id <String[]> [-Server <VIServer[]>]
    [<CommonParameters>]

The -VMHost and -Id parameters are required.

In the following example, we will rescan all the HBAs of the hosts of cluster Cluster01:

PowerCLI C:\> Get-Cluster -Name Cluster01 |
>> Get-VMHost | Get-VMHostStorage -RescanAllHba...