Hi! I have a testing oVirt installation with only one host and running self hosted engine. If I put host in global maintenance mode: hosted-engine --set-maintenance --mode=global then ssh into self hosted engine VM, shoutdown VM using 'init 0', when I run on the host: hosted-engine --set-maintenance --mode=none I have: Traceback (most recent call last): File "/usr/lib64/python2.7/runpy.py", line 162, in _run_module_as_main "__main__", fname, loader, pkg_name) File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code exec code in run_globals File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py", line 73, in <module> if not maintenance.set_mode(sys.argv[1]): File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_setup/set_maintenance.py", line 61, in set_mode value=m_global, File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", line 259, in set_maintenance_mode str(value)) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", line 202, in set_global_md_flag self._configure_broker_conn(broker) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/client/client.py", line 180, in _configure_broker_conn dom_type=dom_type) File "/usr/lib/python2.7/site-packages/ovirt_hosted_engine_ha/lib/brokerlink.py", line 176, in set_storage_domain .format(sd_type, options, e)) ovirt_hosted_engine_ha.lib.exceptions.RequestError: Failed to set storage domain FilesystemBackend, options {'dom_type': 'nfs3', 'sd_uuid': '46f55a31-f35f-465c-b3e2-df45c05e06a7'}: Connection timed out This because the host has the iso domain nfs export mounted but the self hosted engine VM is not running, I think... So I have to reboot the host before change the maintenance mode.