Description:
On rhevm server with iscsi storage, "HSMGetAllTasksStatusesVDS failed: Cannot create Logical Volume" while live storage migration for vm

Versions:
*vdsm-4.19.18-1.el7ev.x86_64*
libvirt-3.2.0-9.el7.x86_64
qemu-kvm-rhev-2.9.0-10.el7.x86_64

How reproducible:
100%


Steps:
1. Prepare rhevm env
 1 host:hp
 2 iscsi storages:IS1,IS2
 1 vm:h

2.start the vm

3.select vm h, click on 'disk' tab, select the disk h_Disk1 and click on 'Move' to do live storage migration:
Operation failed with following errors:
(1)On rhevm server:
Jun 14, 2017 3:06:35 AM   VDSM hp command HSMGetAllTasksStatusesVDS failed: Cannot create Logical Volume
Jun 14, 2017 3:06:42 AM   User admin@internal-authz have failed to move disk h_Disk1 to domain IS1.
...
Jun 14, 2017 3:06:49 AM   VM h has been paused.
...
(2)vdsm.log on host:
2017-06-14 03:06:35,484-0400 ERROR (tasks/2) [storage.Volume] Failed to create volume /rhev/data-center/ad36c80c-ff51-464b-8927-887c70d4880e/49858257-ecc7-4ce7-86b4-6ed8410a9e17/images/ede0bc84-9c25-47c1-b884-3cb0e32b0f8a/5d2fef3d-ceb9-4876-9c2d-a06f2a2f5ac5: Cannot create Logical Volume: ('49858257-ecc7-4ce7-86b4-6ed8410a9e17', '5d2fef3d-ceb9-4876-9c2d-a06f2a2f5ac5') (volume:1070)
2017-06-14 03:06:35,484-0400 ERROR (tasks/2) [storage.Volume] Unexpected error (volume:1107)
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/volume.py", line 1067, in create
    initialSize=initialSize)
  File "/usr/share/vdsm/storage/blockVolume.py", line 528, in _create
    initialTags=(sc.TAG_VOL_UNINIT,))
  File "/usr/share/vdsm/storage/lvm.py", line 1158, in createLV
    raise se.CannotCreateLogicalVolume(vgName, lvName)
CannotCreateLogicalVolume: Cannot create Logical Volume: ('49858257-ecc7-4ce7-86b4-6ed8410a9e17', '5d2fef3d-ceb9-4876-9c2d-a06f2a2f5ac5')
2017-06-14 03:06:35,485-0400 ERROR (tasks/2) [storage.Image] Unexpected error (image:467)
Traceback (most recent call last):
  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/blockVolume.py", line 528, in _create
    initialTags=(sc.TAG_VOL_UNINIT,))
  File "/usr/share/vdsm/storage/lvm.py", line 1158, in createLV
    raise se.CannotCreateLogicalVolume(vgName, lvName)
CannotCreateLogicalVolume: Cannot create Logical Volume: ('49858257-ecc7-4ce7-86b4-6ed8410a9e17', '5d2fef3d-ceb9-4876-9c2d-a06f2a2f5ac5')
2017-06-14 03:06:35,486-0400 ERROR (tasks/2) [storage.TaskManager.Task] (Task='0600a365-fa4f-4324-acfc-69d91b291324') Unexpected error (task:870)
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 877, 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/blockVolume.py", line 528, in _create
    initialTags=(sc.TAG_VOL_UNINIT,))
  File "/usr/share/vdsm/storage/lvm.py", line 1158, in createLV
    raise se.CannotCreateLogicalVolume(vgName, lvName)
CannotCreateLogicalVolume: Cannot create Logical Volume: ('49858257-ecc7-4ce7-86b4-6ed8410a9e17', '5d2fef3d-ceb9-4876-9c2d-a06f2a2f5ac5')
2017-06-14 03:06:48,814-0400 ERROR (periodic/0) [virt.vm] (vmId='7947a8ba-8a9c-4588-9781-b67fd4dcf6aa') Improbable extension request for volume 7615613b-da59-4df0-b726-e9a7c03d3769 on domain d5a4bab3-315c-4814-8ffd-12997537d4c5, pausing the VM to avoid corruptions (capacity: 8589934592, allocated: 8589934592, physical: 1073741824, next physical size: 2147483648) (vm:873)
2017-06-14 03:07:40,919-0400 ERROR (jsonrpc/0) [storage.TaskManager.Task] (Task='aa5477bd-398d-4bf6-a891-977a380702d2') Unexpected error (task:870)
Traceback (most recent call last):
  File "/usr/share/vdsm/storage/task.py", line 877, in _run
    return fn(*args, **kargs)
  File "<string>", line 2, in getVolumeInfo
  File "/usr/lib/python2.7/site-packages/vdsm/common/api.py", line 48, in method
    ret = func(*args, **kwargs)
  File "/usr/share/vdsm/storage/hsm.py", line 3046, in getVolumeInfo
    volUUID=volUUID).getInfo()
  File "/usr/share/vdsm/storage/sd.py", line 743, in produceVolume
    volUUID)
  File "/usr/share/vdsm/storage/blockVolume.py", line 479, in __init__
    manifest = self.manifestClass(repoPath, sdUUID, imgUUID, volUUID)
  File "/usr/share/vdsm/storage/blockVolume.py", line 75, in __init__
    volUUID)
  File "/usr/share/vdsm/storage/volume.py", line 86, in __init__
    self.validate()
  File "/usr/share/vdsm/storage/blockVolume.py", line 168, in validate
    raise se.VolumeDoesNotExist(self.volUUID)
VolumeDoesNotExist: Volume does not exist: (u'7615613b-da59-4df0-b726-e9a7c03d3769',)
2017-06-14 03:07:40,920-0400 ERROR (jsonrpc/0) [storage.Dispatcher] FINISH getVolumeInfo error=Volume does not exist: (u'7615613b-da59-4df0-b726-e9a7c03d3769',) (dispatcher:78)


Actual result
As in step3, "HSMGetAllTasksStatusesVDS failed: Cannot create Logical Volume" while live storage migration for vm with iscsi storage


Expected result
Should succeed to finish live storage migration for vm with iscsi storage without error.


Additional info: