Hello guys. I am using kolla-ansible yoga to deploy an openstack cluster, but when I launch an instance with volume, it has errors. but I can create volume first and boot from it. I am using Powerstore 5000Tb. Is it a bug? 672 ERROR oslo_messaging.rpc.server [req-1a822ccd-1d3a-4f9a-a453-22d04f07f816 47cefefdadbe4bb584d8cf983de71eb5 708d7af8178143aab263d3942a124ec8 - - -] Exception during message handling: cinder.exception.ImageCopyFailure: Failed to copy image to volume: Bad or unexpected response from the storage volume backend API: Unable to fetch connection information from backend: Bad or unexpected response from the storage volume backend API: Failed to create PowerStore host . 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server Traceback (most recent call last): 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/driver.py", line 1045, in _attach_volume 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server conn = self.initialize_connection(volume, properties) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/driver.py", line 153, in initialize_connection 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server return self.adapter.initialize_connection(volume, connector, **kwargs) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/adapter.py", line 272, in initialize_connection 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server connection_properties = self._connect_volume(volume, connector) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/adapter.py", line 613, in _connect_volume 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server chap_credentials, volume_lun = self._create_host_and_attach( 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/adapter.py", line 602, in _create_host_and_attach 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server host, chap_credentials = self._create_host_if_not_exist(connector) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/decorator.py", line 232, in fun 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server return caller(func, *(extras + args), **kw) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/coordination.py", line 195, in _synchronized 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server return f(*a, **k) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/adapter.py", line 446, in _create_host_if_not_exist 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server host = self.client.create_host(host_name, ports) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server File "/var/lib/kolla/venv/lib/python3.8/site-packages/cinder/volume/drivers/dell_emc/powerstore/client.py", line 302, in create_host 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server raise exception.VolumeBackendAPIException(data=msg) 2023-04-05 21:24:30.886 672 ERROR oslo_messaging.rpc.server cinder.exception.VolumeBackendAPIException: Bad or unexpected response from the storage volume backend API: Failed to create PowerStore host . Nguyen Huu Khoi