Changes

The first requirement for performing live migrations involves the creation of a Xen domainU guest to migrate. As mentioned previously, we will need a disk image based domainU guest environment installed in the /xen directory of a server. The steps required to create such a guest are outlined in detail in the chapter entitled [[Building a Xen Virtual Guest Filesystem on a Disk Image (Cloning Host System)]]. Throughout this tutorial we will also work on the assumption that the ''source host'' has an IP address of 192.168.2.20 and the ''target host'' has an IP address of 192.168.2.21.

Once the guest domainU guest has been created the server needs to be configured to allow the ''/xen '' sub-directory on the source host to be mounted via NFS on the system to which the guest is to be migratedtarget host. On Linux systems this typically involvesadding an entry to the ''/etc/exports'' file. As an example, the following entry enables