Description of problem:

After using the  python script /usr/share/doc/python-ovirt-engine-sdk4-4.2.9/examples/download_disk_snapshots.py   to download the Snapshot disk from VM. TeardownImageVDSCommand attempts to deactivate the in-use LV's of VM.  This attempt fails if the Host running VM is used to perform the download disk task. 

Version-Release number of selected component (if applicable):
Red Hat Virtualization 4.2.7

How reproducible:
100%

Actual results:

-- TeardownImageVDSCommand works fine if the Host not running the VM is selected to perform download disk. But if the Host running the VM is selected the TeardownImageVDSCommand fails.

-- This does not block the actual download of the disk but just throws an error like below.

"Failed to tear down image disk-name after image transfer session"

Expected results:

-- Unsure if TeardownImageVDSCommand is required if downloading a snapshot disk.