Book Image

Windows Server 2012 Hyper-V Cookbook

By : Leandro Eduardo S Carvalho, Leandro Carvalho
Book Image

Windows Server 2012 Hyper-V Cookbook

By: Leandro Eduardo S Carvalho, Leandro Carvalho

Overview of this book

Virtualization has proved that it can help organizations to reduce costs, and the Private Cloud has created a revolution in the way we manage and control our servers with centralization and elasticity. The new Windows Server 2012 Hyper-V release from Microsoft comes with a myriad of improvements in areas such as mobility, high availability and elasticity, bringing everything you need to create, manage and build the core components of a Microsoft Private Cloud for virtualized workloads."Windows Server 2012 Hyper-V Cookbook" is the perfect accompaniment for Hyper-V administrators looking to take advantage of all the exciting new features the release has to offer. Through practical recipes, you'll master Hyper-V deployment, migration and management. "Windows Server 2012 Hyper-V Cookbook" is an essential resource for any Hyper-V administrator looking to migrate, install and manage their virtual machine efficiently. With all the features of Windows Server 2012 Hyper-V covered, you will learn everything from installation to disaster recovery, security, high availability, configuration, automation, architecture and monitoring, all in a practical recipe format. The book also includes new features such as Storage and Shared Nothing Live Migration, Hyper-V Replica and Network Virtualization and much more.With "Windows Server 2012 Hyper-V Cookbook" in hand, you'll be equipped to manage your Private Cloud with ease.
Table of Contents (18 chapters)
Windows Server 2012 Hyper-V Cookbook
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Using snapshots in virtual machines


In the IT field, it is easy to have problems, errors, mistakes, and other issue that might need a deep troubleshooting process or even worse, such as a system restore. With virtual machines, the administrators have a very interesting option that is not available in physical servers. What if you could rollback a VM before the error occurred? What if you could prepare the VM for some change that can cause an issue. That's what snapshots are made for. You can take a VM snapshot on the fly, do whatever you need to do, and roll it back in case of errors.

This comes very handy and can save our lives, making the problem prevention two clicks away.

To illustrate some scenarios to use snapshots, consider the following examples:

  • System upgrades or migration

  • Software updates

  • Software installation and configuration

  • Registry changes

  • Troubleshooting problems

This list can go on and on, but the idea of snapshots is to give you the opportunity to recover the virtual machine...