Hi all I have config vCenter in my nova.conf, cinder.conf and glance-api.conf. First of all, I can create VM inner vSphere successfully and I can create VM inner OpenStack without vCenter configuration successfully. Now I config vCenter driver in nova, cinder and glance. Creating images and volumes successfully, but when I create VM instance, I got the error message "Build of instance e3e8e049-98fc-486e-95c7-e17ec0e22e59 aborted: 主机配置过程中出错。" , in english is "Build of instance e3e8e049-98fc-486e-95c7-e17ec0e22e59 aborted: an error occurred during host configuration". And error in vCSA client is just "主机配置过程中出错" while creating vm. Environment: OpenStack(Rocky), vSphere(6.7), storage(iSCSI),network(OVS vlan),vCenter is VMware-VIM-all-6.7.0-16046470.iso installed in windows2012 server. I don't know where did my configuration error in OpenStack or something error in my vSphere. nova.conf: [default] ... compute_driver = vmwareapi.VMwareVCDriver [vmware] host_ip = 192.168.3.115 host_username = administrator@vsphere.local host_password = Zl@123456 cluster_name = mycluster datastore_regex = Datastore_iscsi insecure = True vlan_interface = vmnic0 integration_bridge = br-int api_retry_count = 10 cinder.conf: [DEFAULT] enabled_backends = vmware default_volume_type = vmware [vmware] volume_driver = cinder.volume.drivers.vmware.vmdk.VMwareVcVmdkDriver vmware_host_ip=192.168.3.115 vmware_host_password=Zl@123456 vmware_host_username=administrator@vsphere.local vmware_wsdl_location=https://192.168.3.115/sdk/vimService.wsdl vmware_volume_folder= openstack_volume vmware_datastore_regex = Datastore_iscsi vmware_insecure = True vmware_host_version = 6.7 glance-api.conf: [default] ... known_stores = vmware default_store = vmware [glance_store] filesystem_store_datadir = /tri_fs/images/ stores = files,http,vmware default_store = vsphere vmware_server_host = 192.168.3.115 vmware_server_username = administrator@vsphere.local vmware_server_password = Zl@123456 vmware_datastore_name = Datastore_iscsi vmware_datacenter_path = Datacenter vmware_datastores = Datacenter:Datastore_iscsi vmware_task_poll_interval = 5 vmware_store_image_dir = /openstack_glance vmware_api_insecure = True I hope you can help me. Thank you very much!