Hello, I try to migrate a disk of a running vm from gluster 3.12.15 to gluster 3.12.15 but it fails. libGfApi set to true by engine-config. ° taking a snapshot first, is working. Then at engine-log: 2019-07-18 09:29:13,932+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Failed in 'VmReplicateDiskStartVDS' method 2019-07-18 09:29:13,936+02 ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM ovvirt07 command VmReplicateDiskStartVDS failed: Drive replication error 2019-07-18 09:29:13,936+02 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Command 'org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand' return value 'StatusOnlyReturn [status=Status [code=55, message=Drive replication error]]' 2019-07-18 09:29:13,936+02 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] HostName = ovvirt07 2019-07-18 09:29:13,937+02 ERROR [org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Command 'VmReplicateDiskStartVDSCommand(HostName = ovvirt07, VmReplicateDiskParameters:{hostId='3a7bf85c-e92d-4559-908e-5eed2f5608d4', vmId='3b79d0c0-47e9-47c3-8511-980a8cfe147c', storagePoolId='00000001-0001-0001-0001-000000000311', srcStorageDomainId='e54d835a-d8a5-44ae-8e17-fcba1c54e46f', targetStorageDomainId='4dabb6d6-4be5-458c-811d-6d5e87699640', imageGroupId='d2964ff9-10f7-4b92-8327-d68f3cfd5b50', imageId='62656632-8984-4b7e-8be1-fd2547ca0f98'})' execution failed: VDSGenericException: VDSErrorException: Failed to VmReplicateDiskStartVDS, error = Drive replication error, code = 55 2019-07-18 09:29:13,937+02 INFO [org.ovirt.engine.core.vdsbroker.vdsbroker.VmReplicateDiskStartVDSCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] FINISH, VmReplicateDiskStartVDSCommand, return: , log id: 5b2afb0b 2019-07-18 09:29:13,937+02 ERROR [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Failed VmReplicateDiskStart (Disk 'd2964ff9-10f7-4b92-8327-d68f3cfd5b50' , VM '3b79d0c0-47e9-47c3-8511-980a8cfe147c') 2019-07-18 09:29:13,938+02 ERROR [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Command 'LiveMigrateDisk' id: '8174c74c-8ab0-49fa-abfc-44d8b7c691e0' with children [03672b60-443b-47ba-834c-ac306d7129d0, 562522fc-6691-47fe-93bf-ef2c45e85676] failed when attempting to perform the next operation, marking as 'ACTIVE' 2019-07-18 09:29:13,938+02 ERROR [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] EngineException: Drive replication error (Failed with error replicaErr and code 55): org.ovirt.engine.core.common.errors.EngineException: EngineException: Drive replication error (Failed with error replicaErr and code 55) at org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand.replicateDiskStart(LiveMigrateDiskCommand.java:526) [bll.jar:] at org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand.performNextOperation(LiveMigrateDiskCommand.java:233) [bll.jar:] at org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback.childCommandsExecutionEnded(SerialChildCommandsExecutionCallback.java:32) [bll.jar:] at org.ovirt.engine.core.bll.ChildCommandsCallbackBase.doPolling(ChildCommandsCallbackBase.java:77) [bll.jar:] at org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller.invokeCallbackMethodsImpl(CommandCallbacksPoller.java:175) [bll.jar:] at org.ovirt.engine.core.bll.tasks.CommandCallbacksPoller.invokeCallbackMethods(CommandCallbacksPoller.java:109) [bll.jar:] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [rt.jar:1.8.0_212] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [rt.jar:1.8.0_212] at org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.access$201(ManagedScheduledThreadPoolExecutor.java:383) [javax.enterprise.concurrent-1.0.jar:] at org.glassfish.enterprise.concurrent.internal.ManagedScheduledThreadPoolExecutor$ManagedScheduledFutureTask.run(ManagedScheduledThreadPoolExecutor.java:534) [javax.enterprise.concurrent-1.0.jar:] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [rt.jar:1.8.0_212] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [rt.jar:1.8.0_212] at java.lang.Thread.run(Thread.java:748) [rt.jar:1.8.0_212] at org.glassfish.enterprise.concurrent.ManagedThreadFactoryImpl$ManagedThread.run(ManagedThreadFactoryImpl.java:250) [javax.enterprise.concurrent-1.0.jar:] at org.jboss.as.ee.concurrent.service.ElytronManagedThreadFactory$ElytronManagedThread.run(ElytronManagedThreadFactory.java:78) 2019-07-18 09:29:13,938+02 INFO [org.ovirt.engine.core.bll.SerialChildCommandsExecutionCallback] (EE-ManagedThreadFactory-engineScheduled-Thread-84) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Command 'LiveMigrateDisk' id: '8174c74c-8ab0-49fa-abfc-44d8b7c691e0' child commands '[03672b60-443b-47ba-834c-ac306d7129d0, 562522fc-6691-47fe-93bf-ef2c45e85676]' executions were completed, status 'FAILED' 2019-07-18 09:29:15,019+02 ERROR [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-1) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Ending command 'org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand' with failure. 2019-07-18 09:29:15,019+02 ERROR [org.ovirt.engine.core.bll.storage.lsm.LiveMigrateDiskCommand] (EE-ManagedThreadFactory-engineScheduled-Thread-1) [c957e011-37e0-43aa-abe7-9bb633c38c5f] Failed during live storage migration of disk 'd2964ff9-10f7-4b92-8327-d68f3cfd5b50' of vm '3b79d0c0-47e9-47c3-8511-980a8cfe147c', attempting to end replication before deleting the target disk // LiveStorageMigration on gluster - should that work at all? Has someone tried it? Greetings! Christoph Köhler