
According to the code [1], "vol_type_id" is a required param, so do "project_id/tenant_id" and "qos_id", they aren't optional params. [1] https://github.com/openstack/cinder/blob/master/cinder/api/contrib/qos_specs_manage.py#L261:L269 Change-Id: I7727a9b675080bb92d2e42e293868a1e4eb92e10