On Sun, Jun 26, 2016 at 03:59:31PM +0300, Yedidyah Bar David wrote: > On Sun, Jun 26, 2016 at 3:51 PM, Edward Haas <eh...@redhat.com> wrote: > > > > > > On Thu, Jun 23, 2016 at 3:49 PM, <ov...@timmi.org> wrote: > >> > >> Hi List, > >> > >> I have two nodes (running CentOS 7) and the network interface order > >> changed for some interfaces after every reboot. > >> > >> The configurations are done through the oVirt GUI. So the ifcfg-ethX > >> scripts are configured automatically by VDSM. > >> > >> Is there any option to get this configured to be stable? > >> > >> Best regards and thank you > >> > >> Christoph > >> > >> _______________________________________________ > >> Users mailing list > >> Users@ovirt.org > >> http://lists.ovirt.org/mailman/listinfo/users > > > > > > Hi Christoph, > > > > VDSM indeed edits and takes ownership of the interfaces for the networks it > > manages. > > However, editing the ifcfg files should not change anything in the order of > > the devices, unless it was originally set > > in an unsupported fashion. An ifcfg file is bound to a specific device name > > and I'm not familiar to device names > > floating around randomly. > > Perhaps you should elaborate more on what it means by 'order changed'. > > > > Here is an example of a setup we do not support (pre adding the host to > > Engine): > > The initial ifcfg file name: ifcfg-eth0 > > The initial ifcfg file content: DEVICE="eth1" > > In this configuration, the name of the ifcfg file is inconsistent with the > > name of the device it represents. > > VDSM expects them to me in sync. > > > > Please provide the ifcfg files before and after you add the host to Engine. > > Perhaps Christoph refers to the problem that [1] was meant to solve? > > [1] > https://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterfaceNames/
To add on what didi says, this should be the default with el7's systemd. It is surprising that your nics are named eth*, and not by the predictable nic name scheme. Maybe if you share your `lspci -vvv` and /var/log/messages of two different boots, we can have a hint regarding your instability. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users