On Jan 13, 2017 11:47 AM, "nicola gentile" <nicola.gentile.to(a)gmail.com&gt; wrote: Hi, My environment consists of: 1 engine 2 host 1 storage I must to do an hardware upgrade only for engine manager. How do I proceed? Best regard Nicola _______________________________________________ Users mailing list Users(a)ovirt.org http://lists.ovirt.org/mailman/listinfo/users Use the engine backup tool [1]. That will take care of DB and configurations. Make sure the status of your Ovf_store disks is OK with no event of warning on them(this means you have cold backup of your VM config) You can then just start the upgrade , your VMS will continue with no interference. [1] http://www.ovirt.org/develop/release-,management/features/engine/engine-b...