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Chapter 12. Live Migration

12.1. What is Live Migration?
12.2. Live Migration Prerequisites
12.3. Automatic Virtual Machine Migration
12.3.1. Moving a Host to Maintenance Mode
12.3.2. Cluster Policy
12.3.3. Preventing Automatic Migration of a Virtual Machine
12.4. Manually Migrating Virtual Machines
12.5. Setting Migration Priority
This chapter details the live migration functionality of Red Hat Enterprise Virtualization and the configuration required to support it. Information on triggering live migration of virtual machines is also provided.

12.1. What is Live Migration?

Live migration provides the ability to move a running virtual machine between physical hosts with no interruption to service.
Live migration is transparent to the end user: the virtual machine remains powered on and user applications continue to run while the virtual machine is relocated to a new physical host.