> base1 [file] --- base1 [qcow2] --- snap1.qcow2 --\ > base2 [file] --- base2 [qcow2] --- snap2.qcow2 --->-- quorum > base3 [file] --- base3 [qcow2] --- snap3.qcow2 --/
> > I think the last one is what you really want, but it's certainly not the > case that is enabled by this patch. Yes I am trying to get this configuration: quorum always on top. Benoît > > >> If qcow2 is specified as the format in the QMP command, why is it then > >> wrong to try and open the file as qcow2? Why does it fail? What is the > >> correct driver? > > > > It's correct to format the individual quorum files as qcow2 so specifying > > qcow2 > > in the qmp command seems ok. > > But opening a "quorum:" url which agregate these qcow2 files will fail if > > drv is > > the qcow2 driver. > > Would passing the quorum protocol driver to bdrv_open be ok ? > > A quorum: URL opened with the qcow2 driver should succeed and result in > something like the second case mentioned above. > > Kevin