Timofey have confirmed that the live migration occurs in MOS in the peer2peer mode and not in tunnelled mode.
That makes merged libvirt changes [1] suitable to implement the selective block device migration in nova hence fixing that bug.
However, this is to be implemented upstream.
Hence, moving this to "Won't Fix" in MOS.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1203032#c11
Timofey have confirmed that the live migration occurs in MOS in the peer2peer mode and not in tunnelled mode.
That makes merged libvirt changes [1] suitable to implement the selective block device migration in nova hence fixing that bug.
However, this is to be implemented upstream.
Hence, moving this to "Won't Fix" in MOS.
[1] https:/ /bugzilla. redhat. com/show_ bug.cgi? id=1203032# c11