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Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)
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Mastering KVM Virtualization

Mastering KVM Virtualization

4.2 (16)

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 (17 chapters)
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16
Index

VM migration


Virtualization is all about flexibility. Migration is one of the features in virtualization that showcase its flexibility. What is migration then? In simple terms, it enables you to move your virtual machine from one physical machine to another physical machine with a very minimal downtime or no downtime.

There are two types of migration: offline and online migration.

Offline migration

As the name suggests, during offline migration, the state of the VM will be either shut down or suspended. The VM will be then resumed or started at the destination host.

Live or online migration

In this type of migration, the VM is migrated to the destination host while it's running on the source host. The process is invisible to the users who are using the virtual machines. They will never know that the virtual machine they are using has been transferred to another host while they are working on it. Live migration is one of the main features that made virtualization so popular.

Migration implementation...

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