Description of problem: During certification of dellsc Cinder driver (BZ1416462) we faced this error: test_get_service_by_host_name: [u'cinder-scheduler', u'cinder-volume'] != [u'cinder-scheduler'] This comes from the hostname@driver format returned by service-list. [stack@director ~]$ cinder service-list +------------------+------------------+------+---------+-------+----------------------------+-----------------+ | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason | +------------------+------------------+------+---------+-------+----------------------------+-----------------+ | cinder-scheduler | hostgroup | nova | enabled | up | 2017-01-30T20:16:11.000000 | - | | cinder-volume | hostgroup@dellsc | nova | enabled | up | 2017-01-30T20:16:05.000000 | - | +------------------+------------------+------+---------+-------+----------------------------+-----------------+ This problem can be avoid with this tempest parameter: [volume-feature-enabled] volume_services = True How reproducible: Run a cinder --type cinder certification job with the dellsc driver.