[RHV] Is it safe to change the CPU Family of a cluster without stopping the guests?

Solution Verified - Updated -

Issue

  • During RHEV/RHV installation I chose the wrong CPU family for my cluster. Is it possible to change this without stopping all of my guests?
  • Is this move safe to be made during runtime?
  • Will it cause some kind of interference with the running VMs?
  • Will it impact on Live Migrations?
  • Will lowering CPU family cause any impact to current VMs running in the cluster?

Environment

  • Red Hat Enterprise Virtualization 3.x
  • Red Hat Virtualization 4.x

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