How to manage duplicated UUID on RHEV 3.1

Do you remember the duplicated UID issue on RHEV 3.0? With v3.0 you can register multiple hosts with the same UUID but you can’t perform a live migration.

On RHEV 3.1 you cannot register more than one host with a specific UUID.

This means that you need to change it on each host before registering it to your RHEV Manager.

How to solve this situation? You can simply generate a new UUID by executing this command:

# uuidgen > /etc/vdsm/

then restart the vdsmd service…

# service vdsmd restart

…or reboot your hypervisor.

As you can see it is no longer necessary to edit the file libvirtd.conf on each hypervisor.

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