I think pressing the "Refresh Capabilities" button at the hosts main tab might help after you remove the IB interface - this forces the engine to update its DB state to what's reported by the hypervisor. Then I would expect things to work better...
On 29/12/14 15:59, Arman Khalatyan wrote: > My setup has 3 networks: 1xIB,1x10Gbit+1Gbit for ovirt-management. > The ovirt network does not have any trouble, it is always there. > I was trying to rename or remove my IB network which was used for VM > migrations. > I was using web-GUI, which was removing IB0 network w/o problem. After > removal the hosts where ok. Then I put them to maintenance mode. To > refresh iptables rules I did reinstall. then reinstall was failing with > message that IB0 not attached to any interface. But IB0 interface is not > possible to attach it is already deleted and not visible in any network > dialog. > After creating interface with the same name everything is online now. > My current interface list is following: > virsh -r net-list > Name State Autostart Persistent > -------------------------------------------------- > ;vdsmdummy; active no no > vdsm-cls10G active yes yes > vdsm-IB0 active yes yes > vdsm-ovirtmgmt active yes yes > > On this host the IB0 is not atached to any interface, I wondered, if it > should show up in the net list? > > I think the GUI does not rename/remove the interface from the DB. Some > constrain keeps still IB0 in DB. > > > > *********************************************************** > > Dr. Arman Khalatyan eScience -SuperComputing > Leibniz-Institut für Astrophysik Potsdam (AIP) > An der Sternwarte 16, 14482 Potsdam, Germany > > *********************************************************** > > > On Sun, Dec 28, 2014 at 10:31 AM, Moti Asayag <masa...@redhat.com > <mailto:masa...@redhat.com>> wrote: > > > > ----- Original Message ----- > > From: "Arman Khalatyan" <arm2...@gmail.com <mailto:arm2...@gmail.com>> > > To: "users" <users@ovirt.org <mailto:users@ovirt.org>> > > Sent: Wednesday, December 24, 2014 1:22:43 PM > > Subject: [ovirt-users] Unable to reinstall hosts after network removal. > > > > Hello, > > I have a little trouble with ovirt 3.5 on CentOS6.6: > > I was removing all networks from all hosts. > > Did you use the setup networks dialog from the UI in order to remove > those networks ? > Or have you removed those networks from the host directly (where you > should used the: > 1. virsh net-destroy 'the-network-name' > 2. virsh net-undefine 'the-network-name' > ) > > can you report the output of 'virsh -r net-list' ? > > > Then after removing network from data center the hosts went to unusable. > > What was the host's status prior to removing its networks ? Was it up ? > > > Every time after reinstall the host claims that the network is not > > configured, but it s already removed from network tab in DC. > > What is the missing network name ? Is it 'ovirtmgmt' ? > > > Where from it gets the old configuration? the old interfaces also > restored > > every time on the reinstalled hosts. > > The hosts via vdsm reports their network configuration via the > 'getCapabilities' verb > of vdsm. You can try running it on the host: > > vdsClient -s 0 getVdsCaps > > and examine the nics / neworks / bridges / vlans / bonds elements. > > > Which DB table is in charge of dc-networks? > > > > The retrieved information from vdsm is reported to 'vds_interace' table. > The dc networks are stored in 'networks' table and networks attached to > clusters are stored in network_cluster table. > > I wouldn't recommend on deleting entries from the tables directly. > There are > certain constraints which shouldn't be violated, i.e. the management > network > 'ovirtmgnt' is blocked for removal from the engine. > > > Thanks, > > Arman. > > > > > > *********************************************************** > > Dr. Arman Khalatyan eScience -SuperComputing Leibniz-Institut für > Astrophysik > > Potsdam (AIP) An der Sternwarte 16, 14482 Potsdam, Germany > > *********************************************************** > > > > _______________________________________________ > > Users mailing list > > Users@ovirt.org <mailto:Users@ovirt.org> > > http://lists.ovirt.org/mailman/listinfo/users > > > > > > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users