I checked the vdsm.log of the host and see among other warnings the following: 2019-10-19 14:21:19,427-0400 ERROR (jsonrpc/6) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:191) 2019-10-19 14:21:19,887-0400 ERROR (jsonrpc/7) [storage.TaskManager.Task] (Task='6507ff29-62c9-4056-b7a2-e4fe9395ec44') Unexpected error (task:875) 2019-10-19 14:21:19,887-0400 ERROR (jsonrpc/7) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:21,894-0400 ERROR (jsonrpc/4) [storage.TaskManager.Task] (Task='dc4820ae-c6e9-46cf-868f-c30c584c3604') Unexpected error (task:875) 2019-10-19 14:21:21,894-0400 ERROR (jsonrpc/4) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:23,892-0400 ERROR (jsonrpc/2) [storage.TaskManager.Task] (Task='c64aa233-18b3-4a13-8791-5fd5ba03774a') Unexpected error (task:875) 2019-10-19 14:21:23,892-0400 ERROR (jsonrpc/2) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:25,925-0400 ERROR (jsonrpc/0) [storage.TaskManager.Task] (Task='3f8e7814-c72f-41af-9969-971d25e42d63') Unexpected error (task:875) 2019-10-19 14:21:25,925-0400 ERROR (jsonrpc/0) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:27,888-0400 ERROR (jsonrpc/3) [storage.TaskManager.Task] (Task='62b5c85e-cf79-4167-bb4e-65620b4cc16a') Unexpected error (task:875) 2019-10-19 14:21:27,888-0400 ERROR (jsonrpc/3) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:29,882-0400 ERROR (jsonrpc/7) [storage.TaskManager.Task] (Task='fd19fa4a-72e0-4a69-bd57-28532af092a4') Unexpected error (task:875) 2019-10-19 14:21:29,882-0400 ERROR (jsonrpc/7) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:30,454-0400 ERROR (periodic/3) [root] failed to retrieve Hosted Engine HA score '[Errno 2] No such file or directory'Is the Hosted Engine setup finished? (api:191) 2019-10-19 14:21:31,899-0400 ERROR (jsonrpc/5) [storage.TaskManager.Task] (Task='e370869a-07de-4d75-9e1c-410202e48a60') Unexpected error (task:875) 2019-10-19 14:21:31,899-0400 ERROR (jsonrpc/5) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 019-10-19 14:21:21,868-0400 INFO (jsonrpc/5) [vdsm.api] FINISH getStorageDomainInfo return={'info': {'uuid': u'4b87a5de-c976-4982-8b62-7cffef4a22d8', 'version': '5', 'role': 'Master', 'alignment': 1048576, 'remotePath': 'vmm13.virt.iad3p.rsapps.net:/engine', 'block_size': 512, 'type': 'GLUSTERFS', 'class': 'Data', 'pool': ['7d3fb14c-ebf0-11e9-9ee5-00163e05e135'], 'name': 'HostedEngine'}} from=::1,33908, task_id=55a03cc9-1f9f-44b6-b87f-bbb73cefee53 (api:54) 2019-10-19 14:21:21,868-0400 INFO (jsonrpc/5) [jsonrpc.JsonRpcServer] RPC call StorageDomain.getInfo succeeded in 0.01 seconds (__init__:312) 2019-10-19 14:21:21,878-0400 INFO (jsonrpc/4) [vdsm.api] START prepareImage(sdUUID=u'4b87a5de-c976-4982-8b62-7cffef4a22d8', spUUID=u'00000000-0000-0000-0000-000000000000', imgUUID=u'7f969d21-1445-4993-a7d8-3af8fb83cbd4', leafUUID=u'1ba19dea-32e9-465a-a43c-eec81a88d2e0', allowIllegal=False) from=::1,33908, task_id=dc4820ae-c6e9-46cf-868f-c30c584c3604 (api:48) 2019-10-19 14:21:21,894-0400 INFO (jsonrpc/4) [vdsm.api] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) from=::1,33908, task_id=dc4820ae-c6e9-46cf-868f-c30c584c3604 (api:52) 2019-10-19 14:21:21,894-0400 ERROR (jsonrpc/4) [storage.TaskManager.Task] (Task='dc4820ae-c6e9-46cf-868f-c30c584c3604') Unexpected error (task:875) Traceback (most recent call last): File "/usr/lib/python2.7/site-packages/vdsm/storage/task.py", line 882, in _run return fn(*args, **kargs) File "<string>", line 2, in prepareImage File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 50, in method ret = func(*args, **kwargs) File "/usr/lib/python2.7/site-packages/vdsm/storage/hsm.py", line 3203, in prepareImage raise se.VolumeDoesNotExist(leafUUID) VolumeDoesNotExist: Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) 2019-10-19 14:21:21,894-0400 INFO (jsonrpc/4) [storage.TaskManager.Task] (Task='dc4820ae-c6e9-46cf-868f-c30c584c3604') aborting: Task is aborted: "Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',)" - code 201 (task:1181) 2019-10-19 14:21:21,894-0400 ERROR (jsonrpc/4) [storage.Dispatcher] FINISH prepareImage error=Volume does not exist: (u'1ba19dea-32e9-465a-a43c-eec81a88d2e0',) (dispatcher:83) 2019-10-19 14:21:21,895-0400 INFO (jsonrpc/4) [jsonrpc.JsonRpcServer] RPC call Image.prepare failed (error 201) in 0.01 seconds (__init__:312) 2019-10-19 14:21:22,391-0400 INFO (Reactor thread) [ProtocolDetector.AcceptorImpl] Accepted connection from ::1:33910 (protocoldetector:61) 2019-10-19 14:21:22,399-0400 INFO (Reactor thread) [ProtocolDetector.Detector] Detected protocol stomp from ::1:33910 (protocoldetector:125) 2019-10-19 14:21:22,399-0400 INFO (Reactor thread) [Broker.StompAdapter] Processing CONNECT request (stompserver:95)