Hi, I come back to a point that caused me a big problem, because I would like to understand something that I did not do correctly. I have a lab with an Openstack (2023.1, kolla-ansible, ubuntu 22-04, 2 nodes) and to show that it works, I start with an LVM backend. Everything is working. I'm adding a Ceph (Pacific) cluster and want to switch from LVM backend to CEPH. If we edit the globals.yml file and make the changes, then the "deploy" command, the LVM backend is still in the list of backends. If we restart the cinder containers, same thing. If we do "stop" then "deploy": same thing. I had to do "stop", "destroy", "deploy" to no longer have the LVM backend but only the CEPH backend. My question is therefore the following: what should we do in this situation? Is there a solution to easily no longer take into account a backend? Thansk for your help Franck