Cinder volume creation fails with HPE 3par FC from a glance image error "No new vlun(s) were created" in volume.log

Issue

• Cinder volume creation fails with HPE 3par FC from a glance image error Volume driver reported an error: No new vlun(s) were created in /var/log/cinder/volume.log

2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server Traceback (most recent call last):
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 133, in _process_incoming
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server res = self.dispatcher.dispatch(message)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 150, in dispatch
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server return self._do_dispatch(endpoint, method, ctxt, args)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 121, in _do_dispatch
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server result = func(ctxt, **new_args)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 4370, in create_volume
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server allow_reschedule=allow_reschedule, volume=volume)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 635, in create_volume
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server _run_flow()
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/manager.py", line 627, in _run_flow
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server flow_engine.run()
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/engines/action_engine/engine.py", line 247, in run
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server for _state in self.run_iter(timeout=timeout):
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/engines/action_engine/engine.py", line 340, in run_iter
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server failure.Failure.reraise_if_any(er_failures)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/types/failure.py", line 336, in reraise_if_any
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server failures[0].reraise()
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/types/failure.py", line 343, in reraise
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server six.reraise(*self._exc_info)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/taskflow/engines/action_engine/executor.py", line 53, in _execute_task
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server result = task.execute(**arguments)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 873, in execute
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server **volume_spec)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 831, in _create_fro
m_image
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server image_service)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/coordination.py", line 285, in wrapped
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server return f(*a, **k)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 758, in _create_fro
m_image_cache_or_download
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server image_service
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 670, in _create_fro
m_image_download
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server image_service)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server File "/usr/lib/python2.7/site-packages/cinder/volume/flows/manager/create_volume.py", line 551, in _copy_image
_to_volume
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server raise exception.ImageCopyFailure(reason=ex)
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server ImageCopyFailure: Failed to copy image to volume: Bad or unexpected response from the storage volume backend API
: Unable to fetch connection information from backend: Volume driver reported an error: No new vlun(s) were created
2018-11-01 18:44:00.284 186546 ERROR oslo_messaging.rpc.server