On Wed, Feb 10, 2010 at 04:58:25PM +0000, Daniel P. Berrange wrote: > On Tue, Feb 09, 2010 at 04:06:56PM +0100, Thomas Treutner wrote: > > Hi, > > > > with all qemu-kvm > 0.11, virsh domblkstat is not working: > > > > virsh -c qemu://node03/system domblkstat wp01 vdb : invalid argument in no > > stats found for device virtio-disk1 > > > > (vda, vdb etc. works with 0.11) > > > > "virtio-disk1" seems to be a red herring: > > > > virsh -c qemu://node03/system domblkstat wp01 virtio-disk1 : invalid argument > > in invalid path: virtio-disk1 > > > > Most probably there have been made some changes with 0.12 libvirt does not > > resemble yet. If you need more debugging output, just tell. > > I've managed to reproduce it and figured out what's wrong. libvirt was > trying to match against the device name 'virtio-disk1' rather than against > the drive name 'drive-virtio-disk1' and so not finding the stats. > > The reason its matching 'virtio-disk1' rather than 'vda' is that that is > the globally unique name libvirt gave to the 'vda' device. You can see > this now in the XML format <alias> element. In the future we will allow > you to actually pass the alias in directly, as an alternative to the > 'vda' style name FYI, I've added a test case for the disk stats API now & just posted the fix to the list http://libvirt.org/git/?p=libvirt-tck.git;a=blob;f=scripts/domain/120-disks-stats.t;hb=HEAD Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list