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KVM Virtualization Cookbook

You're reading from KVM Virtualization Cookbook Learn how to use KVM effectively in production

Product type Paperback

Published in Jun 2017

Publisher Packt

ISBN-13 9781788294676

Length 340 pages

Edition 1st Edition

Languages

Python

Tools

KVM

Concepts

Cloud Computing

Author (1):

Konstantin Ivanov

View More author details

Table of Contents (9) Chapters

Preface

1. Getting Started with QEMU and KVM FREE CHAPTER

2. Using libvirt to Manage KVM

3. KVM Networking with libvirt

4. Migrating KVM Instances

5. Monitoring and Backup of KVM Virtual Machines

6. Deploying KVM Instances with OpenStack

7. Using Python to Build and Manage KVM Instances

8. Kernel Tuning for KVM Performance

Manual offline migration using an iSCSI storage pool

In this recipe, we are going to set up an iSCSI target, configure a storage pool for it, and create a new KVM instance using the attached iSCSI block device as its backend volume. Then, we are going to perform a manual offline migration of the instance to a new host.

Getting ready

For this recipe, we are going to need the following:

Two servers with libvirt and qemu installed and configured, named kvm1 and kvm2. The two hosts must be able to connect to each other using SSH keys and short hostname.
A server with an available block device that will be exported as an iSCSI target and reachable from both libvirt servers. If a block device is not available, please refer to the There's more... section in this recipe for instructions on how to create one using a regular file. The name of the iSCSI target server in this recipe is iscsi_target.
Connectivity to a Linux repository to install the guest OS.

How to do it...

To perform a manual offline migration...

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Authors (1)

Konstantin Ivanov

Konstantin Ivanov

Konstantin Ivanov is a Linux Systems Engineer, an open source developer, and a technology blogger who has been designing, configuring, deploying, and administering large-scale, highly available Linux environments for more than 15 years. His interests include large distributed systems and task automation, along with solving technical challenges involving multiple technology stacks. Konstantin received two Master of Science in Computer Science degrees from universities in Bulgaria and the United States, specializing in System and Network security and Software engineering. In his spare time, he loves writing technology blogs and spending time with his two boys.

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