Chapter 8. Reinstalling an Existing Host as a Self-Hosted Engine Node

You can convert an existing, standard host in a self-hosted engine environment to a self-hosted engine node capable of hosting the Manager virtual machine.

Warning

When installing or reinstalling the host’s operating system, Red Hat strongly recommends that you first detach any existing non-OS storage that is attached to the host to avoid accidental initialization of these disks, and with that, potential data loss.

Procedure

  1. Click Compute → Hosts and select the host.
  2. Click Management → Maintenance and OK.
  3. Click Installation → Reinstall.
  4. Click the Hosted Engine tab and select DEPLOY from the drop-down list.
  5. Click OK.

The host is reinstalled with self-hosted engine configuration, and is flagged with a crown icon in the Administration Portal.

After reinstalling the hosts as self-hosted engine nodes, you can check the status of the new environment by running the following command on one of the nodes: 

# hosted-engine --vm-status

If the new environment is running without issue, you can decommission the original Manager machine.