Re: [ovirt-users] problem while moving/copying disks: vdsm low level image copy failed

Hi,  Can please you provide the versions of vdsm, qemu, libvirt? On Sun, Jul 30, 2017 at 1:01 PM, Johan Bernhardsson <johan(a)kafit.se&gt; wrote: > Hello, > > We get this error message while moving or copying some of the disks > on > our main cluster running 4.1.2 on centos7   > > This is shown in the engine: > VDSM vbgkvm02 command HSMGetAllTasksStatusesVDS failed: low level > Image > copy failed > > I can copy it inside the host. And i can use dd to copy. Haven't > tried > to run qemu-img manually yet. > > > This is from vdsm.log on the host: > 2017-07-28 09:07:22,741+0200 ERROR (tasks/6) [root] Job u'c82d4c53- > 3eb4-405e-a2d5-c4c77519360e' failed (jobs:217) > Traceback (most recent call last): >   File "/usr/lib/python2.7/site-packages/vdsm/jobs.py", line 154, > in > run >     self._run() >   File "/usr/share/vdsm/storage/sdm/api/copy_data.py", line 88, in > _run >     self._operation.wait_for_completion() >   File "/usr/lib/python2.7/site-packages/vdsm/qemuimg.py", line > 329, in > wait_for_completion >     self.poll(timeout) >   File "/usr/lib/python2.7/site-packages/vdsm/qemuimg.py", line > 324, in > poll >     self.error) > QImgError: cmd=['/usr/bin/taskset', '--cpu-list', '0-15', > '/usr/bin/nice', '-n', '19', '/usr/bin/ionice', '-c', '3', > '/usr/bin/qemu-img', 'convert', '-p', '-t', 'none', '-T', 'none', > '-f', > 'raw', u'/rhev/data-center/mnt/glusterSD/vbgsan02:_fs02/0924ff77- > ef51- > 43 > 5b-b90d-50bfbf2e8de7/images/750f4184-b852-4b00-94fc- > 476f3f5b93c7/3fe43487-3302-4b34-865a-07c5c6aedbf2', '-O', 'raw', > u'/rhev/data-center/mnt/glusterSD/10.137.30.105:_fs03/5d47a297- > a21f- > 4587-bb7c-dd00d52010d5/images/750f4184-b852-4b00-94fc- > 476f3f5b93c7/3fe43487-3302-4b34-865 > a-07c5c6aedbf2'], ecode=1, stdout=, stderr=qemu-img: error while > reading sector 12197886: No data available > , message=None > > > The storage domains are all based on gluster. The storage domains > that > we see this on is configured as dispersed volumes.  > > Found a way to "fix" the problem. And that is to run dd if=/dev/vda > of=/dev/null bs=1M  inside the virtual guest. After that we can > copy an > image or use storage livemigration. > > Is this a gluster problem or an vdsm problem? Or could it be > something > with qemu-img? > > /Johan > _______________________________________________ > Users mailing list > Users(a)ovirt.org > http://lists.ovirt.org/mailman/listinfo/users >