Hello, During the live storage migration a few disks out of 55 where not migrating. Any hints how to fix it? They are throwing following error: 2017-12-04 10:22:04,442+0100 ERROR (tasks/4) [storage.TaskManager.Task] (Task='2b895d5b-5abd-41c1-bfba-c70ebe4a5213') Unexpected error (task:872) Traceback (most recent call last): File "/usr/share/vdsm/storage/task.py", line 879, in _run return fn(*args, **kargs) File "/usr/share/vdsm/storage/task.py", line 333, in run return self.cmd(*self.argslist, **self.argsdict) File "/usr/lib/python2.7/site-packages/vdsm/storage/securable.py", line 79, in wrapper return method(self, *args, **kwargs) File "/usr/share/vdsm/storage/sp.py", line 1712, in cloneImageStructure img.cloneStructure(sdUUID, imgUUID, dstSdUUID) File "/usr/share/vdsm/storage/image.py", line 676, in cloneStructure self._createTargetImage(sdCache.produce(dstSdUUID), sdUUID, imgUUID) File "/usr/share/vdsm/storage/image.py", line 450, in _createTargetImage srcVolUUID=volParams['parent']) File "/usr/share/vdsm/storage/sd.py", line 758, in createVolume initialSize=initialSize) File "/usr/share/vdsm/storage/volume.py", line 1067, in create initialSize=initialSize) File "/usr/share/vdsm/storage/fileVolume.py", line 445, in _create raise se.VolumeAlreadyExists(volUUID) VolumeAlreadyExists: Volume already exists: ('5fd79560-1cc3-4711-b758-52195c1d196d',) Thank you beforehand, Arman.