I know this question pops up on a regular with this forum, but my best search 
engine manipulation turned up only to back up the engine configuration to a 
shared storage, then restore it on the other cluster using hosted-engine 
--deploy --restore-from-file=backup.tar.gz. While this is workable (it's by no 
means the end of the world for me), I wanted to ask if a different or better 
way has been or will be implemented. Here's why:

I am trying to move to oVirt from ESXi (the latter has outgrown its usefulness 
to me and has become increasingly more difficult to maintain for my purposes, 
as VMware is intent on pushing newer CPU technologies with each new version, 
leaving perfectly good systems with perfectly good processors and hardware out 
in the cold. On top of that, VMware won't let you easily do vGPU or GPU 
passthrough without significant risk to the system stability.). I started with 
a VM on the ESXi host as a proof-of-concept for setting up and configuring 
oVirt to run the hosted engine and a couple of VMs. This worked after some 
great work from the members here on the forum (shout out to Tomas and Arik!). 
This initial cluster is an Intel CPU based cluster, as the server its VM is 
running on is an R720. This is the server I need to migrate off of (I have a 
plan). So I set up in VMware Workstation on my PC a second host in its own 
cluster (as that machine is an AMD CPU machine). Now, I know I can't live migr
 ate between clusters to begin with, but I was hoping there was an easier way 
to move the hosted-engine to the shared NAS storage, put the hosted-engine in 
maintenance mode, shut it down, change a variable or three with the 
--set-shared-config option (if that applies), run some script on the other host 
that starts the hosted-engine on that host in that cluster, bringing it out of 
maintenance mode automatically once up and verified stable.

I understand that process COULD be slower and more fraught with danger than 
just simply backing up the config to shared storage and deploying on the AMD 
host with the restored config, but on the off-chance it ISN'T I wanted to 
explore that possibility. Besides, it would be a nice feature of the 
hosted-engine and oVirt as a whole if you could eventually right-click the 
hosted-engine VM in the portal and click "Move to new cluster...", which would 
automate that entire process for you.

All that said, I'm working on one last problematic VM import before I start the 
arduous process of pulling everything off of ESXi and reformatting the R720 for 
oVirt. Hopefully that goes smoother than my start with oVirt. :)
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