Book Image

Mastering KVM Virtualization

Book Image

Mastering KVM Virtualization

Overview of this book

A robust datacenter is essential for any organization – but you don’t want to waste resources. With KVM you can virtualize your datacenter, transforming a Linux operating system into a powerful hypervisor that allows you to manage multiple OS with minimal fuss. This book doesn’t just show you how to virtualize with KVM – it shows you how to do it well. Written to make you an expert on KVM, you’ll learn to manage the three essential pillars of scalability, performance and security – as well as some useful integrations with cloud services such as OpenStack. From the fundamentals of setting up a standalone KVM virtualization platform, and the best tools to harness it effectively, including virt-manager, and kimchi-project, everything you do is built around making KVM work for you in the real-world, helping you to interact and customize it as you need it. With further guidance on performance optimization for Microsoft Windows and RHEL virtual machines, as well as proven strategies for backup and disaster recovery, you’ll can be confident that your virtualized data center is working for your organization – not hampering it. Finally, the book will empower you to unlock the full potential of cloud through KVM. Migrating your physical machines to the cloud can be challenging, but once you’ve mastered KVM, it’s a little easie.
Table of Contents (22 chapters)
Mastering KVM Virtualization
Credits
About the Authors
About the Reviewers
www.PacktPub.com
Preface
Index

Xen guest conversion


virt-v2v does not yet natively support converting virtual machines from Citrix's Xen-based virtualization. However you can use virt-v2v for converting virtual machines running on old Xen implementations in CentOS5 or similar hosts that is managed by libvirt.

The following things are to be checked before initiating conversion:

  • Make sure that the virtual machine that needs to be migrated to the KVM hypervisor has access to the YUM repository in order to download a non-Xen kernel and some other stuff.

  • Make sure that the SSH connection is enabled on Xen Dom0.

  • Once you confirm the preceding options, you can start converting your Xen virtual machines using the following commands.

The following are the different targets to which a Xen VM can be converted:

  • To convert a Xen virtual machine to a KVM standalone host, run the following command:

    # virt-v2v -ic 'xen+ssh://[email protected]' rhel5-1-xen' -o local -os /v2vconvert/ -on rhel5-1-kvm
    

    This command will convert a virtual machine...