Book Image

VMware vSphere 5.1 Cookbook

By : Abhilash G B
Book Image

VMware vSphere 5.1 Cookbook

By: Abhilash G B

Overview of this book

Amidst all the recent competition from Citrix and Microsoft, VMware's vSphere product line is still the most feature rich and futuristic product in the virtualization industry. Knowing how to install and configure vSphere components is important to give yourself a head start towards virtualization using VMware. If you want to quickly grasp the installation and configuration procedures, especially by using the new vSphere 5.1 web client, this book is for you.VMware vSphere 5.1 Cookbook will take you through all the steps required to accomplish a task with minimal reading required. Most of the tasks are accompanied with relevant screenshots with an intention to provide a visual guidance as well.The book has many useful recipes that will help you progress through the installation of VMware ESXi 5.1 and vCenter Server 5.1. You will learn to use Auto Deploy and Image Profiles to deploy stateless/stateful ESXi servers, configure failover protection for virtual machines using vSphere HA, configure automated load balancing using vSphere DRS and DPM. Finally, the book guides you through upgrading or patching ESXi servers using VMware Update Manager and also deploying and configuring vSphere Management Assistant (VMA) to be able to run scripts to manage the ESXi servers.
Table of Contents (20 chapters)
VMware vSphere 5.1 Cookbook
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Attaching RDM to a virtual machine


In many environments, there will be requirements or special cases that warrant the use of raw device mappings (RDM). The use of RDMs allows the guest operating system running in a VM to create its native filesystem on a LUN device. The benefits of using RDMs have been outlined in the vSphere 5.1 Storage guide:

http://pubs.vmware.com/vsphere-51/topic/com.vmware.ICbase/PDF/vsphere-esxi-vcenter-server-511-storage-guide.pdf

RDMs can be presented to a VM in two compatibility modes:

  • Physical compatibility: In this mode all of the SCSI commands except the REPORT LUNs command is sent to the device directly. Therefore, this mode is also referred to as a Passthrough mode.

  • Virtual compatibility: In this mode only the READ and WRITE commands are sent to the device. In this mode the RDM will be compatible with most of the tasks that can be performed on a traditional VMDK.

In this recipe of the chapter, we will learn how to attach a raw device mapping to a virtual machine...