Hi, At present, I have a 3.1 oVirt setup and a new 3.3 other oVirt setup. Those two setups have no relations, except they are plugged on the same iSCSI SAN. I was trying to to the following test : - on ovirt3.1, create a new storage domain - put it a VM disk - shutdown this VM - desactivate the storage domain - detach it - on the ovirt3.3, attach this storage domain as an additionnal one (obviously, I already have a master domain) - activate it - start the VM But on the first part of this plan, I can't even detach it because "Cannot detach Storage Domain while VMs/Templates reside on it. -Please remove all objects and try again." Well, OK. In fact, let's forgot the speach above and just read this : I'm trying to understand what I can do with my oVirt LUNs when I get a complete serious crash (datacenter on fire) and I just have the SAN. I was hoping I could import the storage domains into another oVirt setup. Maybe I should store data another way? I'm sure you know the best practices - the oVirt way. -- Nicolas Ecarnot