This is just an informational note :
As you know, it is possible to perform lots of operations on virtual machines through ovirt/rhev-m gui.. Before performing such operations, the VM storage has to be locked to avoid further damage/data corruption.. That said, all storage operations, such as create/delete VM/Template/Snapshot, will lock the VM image to perform the same. The storage operations (ex: snapshot ) depends the VM disk image size and the data on it. The time needed to perform these operations vary. So you may see “image locked” status on this time.. If the “VM” is continuing in “Image Locked” status for long time ( It depend on the operation) it could be something wrong with it, need to analyse further..