Question: 1) Can someone point me to the manual on how to re-constitute a VM and >bring it back into oVirt where all "oVirt-engines" were redeployed. It is >only three or four VMs I typically care about (HA cluster and OCP >ignition/ Ansible tower VM). Ensure that the old Engine is powered off. Next, add the storage domains in the new HostedEngine and inside the storage engine , there is a "Import VM" tab which will allow you to import your VMs.
2) How do I make sure these core VMs are able to be reconstituted. Can I >create a dedicated volume where the VMs are full provisioned, and the path >structure is "human understandable".
Usually when you power up a VM , the VM's xml is logged in the vdsm log. Also , while the VM is running , you can find the xml of the VM in the /var/run/libvirt (or whatever libvirt puts it).
3) I know that you can backup the engine. If I had been a smart person, >how does one backup and recover from this kind of situation. Does >anyone have any guides or good articles on this?
https://www.ovirt.org/images/Hosted-Engine-4.3-deep-dive.pdf -> page 52 Best Regards, Strahil Nikolov