hi all

ovirt engine 4.2.5.2-1.el7

ovirt node:
KVM Version: 2.9.0 - 16.el7_4.14.1
LIBVIRT Version: libvirt-3.2.0-14.el7_4.9
VDSM Version: vdsm-4.20.27.1-1.el7.centos

Can't restore vm by following this instruction https://ovirt.org/develop/release-management/features/storage/backup-restore-disk-snapshots/
error message:

# python upload_disk_snapshots.py
Creating disk: 414d6613-5cfe-493c-ae6c-aa29caa32983
Traceback (most recent call last):
  File "upload_disk_snapshots.py", line 305, in <module>
    disk = create_disk(base_volume, disk_id, sd_name, disks_service)
  File "upload_disk_snapshots.py", line 186, in create_disk
    name=sd_name
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/services.py", line 6715, in add
    return self._internal_add(disk, headers, query, wait)
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 232, in _internal_add
    return future.wait() if wait else future
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 55, in wait
    return self._code(response)
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 229, in callback
    self._check_fault(response)
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 132, in _check_fault
    self._raise_error(response, body)
  File "/usr/lib64/python2.7/site-packages/ovirtsdk4/service.py", line 118, in _raise_error
    raise error
ovirtsdk4.Error: Fault reason is "Operation Failed". Fault detail is "[Cannot add Virtual Disk. Disk configuration (RAW Sparse) is incompatible with the storage domain type.]". HTTP response code is 400.

# tree 414d6613-5cfe-493c-ae6c-aa29caa32983/
414d6613-5cfe-493c-ae6c-aa29caa32983/
├── 3610d5fd-6f55-46d9-a226-c06eee8e21e6
└── f77207b2-6e5b-4464-bd6f-5ae6d776435d

414d6613-5cfe-493c-ae6c-aa29caa32983 - disk id
3610d5fd-6f55-46d9-a226-c06eee8e21e6 - base image file
f77207b2-6e5b-4464-bd6f-5ae6d776435d - snapshot1 file

# qemu-img info 414d6613-5cfe-493c-ae6c-aa29caa32983/3610d5fd-6f55-46d9-a226-c06eee8e21e6
image: 414d6613-5cfe-493c-ae6c-aa29caa32983/3610d5fd-6f55-46d9-a226-c06eee8e21e6
file format: qcow2
virtual size: 20G (21474836480 bytes)
disk size: 22G
cluster_size: 65536
Format specific information:
    compat: 1.1
    lazy refcounts: false
    refcount bits: 16
    corrupt: false

# qemu-img info 414d6613-5cfe-493c-ae6c-aa29caa32983/f77207b2-6e5b-4464-bd6f-5ae6d776435d
image: 414d6613-5cfe-493c-ae6c-aa29caa32983/f77207b2-6e5b-4464-bd6f-5ae6d776435d
file format: qcow2
virtual size: 20G (21474836480 bytes)
disk size: 1.0G
cluster_size: 65536
backing file: 3610d5fd-6f55-46d9-a226-c06eee8e21e6 (actual path: 414d6613-5cfe-493c-ae6c-aa29caa32983/3610d5fd-6f55-46d9-a226-c06eee8e21e6)
backing file format: qcow2
Format specific information:
    compat: 1.1
    lazy refcounts: false
    refcount bits: 16
    corrupt: false

upload_disk_snapshots.py:
==========================
if __name__ == "__main__":

    # Set storage domain name
    sd_name = 'data_sas3'

    # Set OVF file path
    ovf_file_path = 'f4fdaf18-b944-4d22-879b-e235145a93f6.ovf'

    # Disk to upload
    disk_path = '414d6613-5cfe-493c-ae6c-aa29caa32983'
    disk_id = os.path.basename(disk_path)
==========================

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