Hi,
Yes, the /etc/vdsm/logger.conf contains log level settings for most of the operations, but not all.
You can use vdsm-client to enable logging :
vdsm-client Host setLogLevel level=DEBUG name=QemuImg
Here an example of the output :
2017-06-28 14:02:10,829+0300 WARN (jsonrpc/6) [root] Setting loglevel on 'QemuImg' to DEBUG (10) (logutils:168)
2017-06-28 14:05:30,904+0300 DEBUG (tasks/1) [QemuImg] /usr/bin/taskset --cpu-list 0-0 /usr/bin/nice -n 19 /usr/bin/ionice -c 3 /usr/bin/qemu-img convert -p -t none -T none -f raw /rhev/data-center/mnt/10.35.0.181:_home_storage__domains_sd2__master/acb344a1-62ee-48e8-bdf4-fa571d0d81ce/images/2475ff33-2118-48e4-bfd3-a16bfaa39e88/5d75fc4c-b156-49c0-b7fe-e54c5af67b0a -O raw /rhev/data-center/mnt/10.35.0.181:_home_storage__domains_sd3__master/0883a2dc-c973-495d-95b0-73e08c2948e0/images/2475ff33-2118-48e4-bfd3-a16bfaa39e88/5d75fc4c-b156-49c0-b7fe-e54c5af67b0a (cwd None) (qemuimg:261)
2017-06-28 14:05:32,589+0300 DEBUG (tasks/1) [QemuImg] qemu-img operation progress: 100.0% (qemuimg:332)
Regarding the UI, see attached a screenshot. Under the "Locked" status there is a progress bar.
Regards,
Fred