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ovirt - in docker
by ReSearchIT Eng 10 Oct '18

10 Oct '18

Hello! I am interested to run ovirt in docker container. It was noticed that there is an official repo for it: https://github.com/oVirt/ovirt-container-engine Unfortunately it did not get an update for 2 years (4.1). Can anyone help with the required answers/entrypoint/patch files for the new 4.2 ? Thanks!

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IPoIB broken with ovirt 4.2.6
by Giulio Casella 10 Oct '18

10 Oct '18

Hi, latest ovirt node stable (4.2.6 today) introduced a bug in kernel: IP over infiniband is not workingh anymore after an upgrade, due to kernel 3.10.0-862.11.6.el7.x86_64. You can find some detail here: https://bugs.centos.org/view.php?id=15193 dmesg is full of "failed to modify QP to RTR: -22", and the networking stack (in my case used to connect to storage) is broken. The interface can obtain an address via DHCP, but also a simple ICMP ping fails. Does someone have news about a fix for this issue? TIA, Giulio

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Re: removing FC storage
by Luca 'remix_tj' Lorenzetto 10 Oct '18

10 Oct '18

Hi, i don't know, is a right question anyway. Luca On Wed, Oct 10, 2018 at 6:23 AM David David <dd432690(a)gmail.com> wrote: > > why engine not removing volume group after removing storage domain ? > bug or so it is made specially ? > > вт, 9 окт. 2018 г. в 10:29, Luca 'remix_tj' Lorenzetto <lorenzetto.luca(a)gmail.com>: >> >> On Tue, Oct 9, 2018 at 7:05 AM David David <dd432690(a)gmail.com> wrote: >> > >> > How to remove FC storage domain correctly? >> > I turned off the FC storage domain in the cluster (maintenance -> detach -> remove), but the volume group still remained on the hosts and I would have to remove them manually and need to clear a multipath links too, before I turn off the LUN on the FC storage. >> > How will the cluster behave if there are differences in the volume groups on the hosts? >> > Because I can’t simultaneously delete partitions and multipath links on all hosts, and this process will occur sequentially on each host. >> >> Hello, >> >> i confirm what you're doing is right. You can automate it through a >> script or ansible playbook. >> >> Luca >> >> >> -- >> "E' assurdo impiegare gli uomini di intelligenza eccellente per fare >> calcoli che potrebbero essere affidati a chiunque se si usassero delle >> macchine" >> Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) >> >> "Internet è la più grande biblioteca del mondo. >> Ma il problema è che i libri sono tutti sparsi sul pavimento" >> John Allen Paulos, Matematico (1945-vivente) >> >> Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com> -- "E' assurdo impiegare gli uomini di intelligenza eccellente per fare calcoli che potrebbero essere affidati a chiunque se si usassero delle macchine" Gottfried Wilhelm von Leibnitz, Filosofo e Matematico (1646-1716) "Internet è la più grande biblioteca del mondo. Ma il problema è che i libri sono tutti sparsi sul pavimento" John Allen Paulos, Matematico (1945-vivente) Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca(a)gmail.com>

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Disk move fails - Invalid parameter: 'initial size=
by Simon Vincent 10 Oct '18

10 Oct '18

I am trying to move a disk to another data domain but it always fails with the following error. ERROR [org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector] (EE-ManagedThreadFactory-engineScheduled-Thread-77) [] EVENT_ID: VDS_BROKER_COMMAND_FAILURE(10,802), VDSM blade15.crt.lan command HSMGetAllTasksStatusesVDS failed: Error creating a new volume: (u"Volume creation e6171aae-2c5b-4c91-84fc-506c0e835928 failed: Invalid parameter: 'initial size=122016117'",) It sounds a bit like this bug https://bugzilla.redhat.com/show_bug.cgi?id=1625240 Does anyone know how to work around this problem? Thanks

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Power Management connection to Citrix Studio
by jtxtm25＠gmail.com 09 Oct '18

09 Oct '18

Hello, Making a transition into Ovirt from XenServer. Does anyone know of any resources around configuring Ovirt with Citrix Studio? Referencing: Studio > Configuration > Hosting > Add Connection and Resources Connection Types Citrix XenServer Microsoft System Center Virtual Machine Manager VMware vSphere CloudPlatform Microsoft Azure Microsoft Azure Classic Amazon EC2 Microsoft Configuration Manager Wake on LAN Mapping to the hypervisor from Studio is required to take advantage of power management features. Has anyone found a way to map directly to Ovirt? Thanks, Jake

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Moving to new storage questions
by Mark Steele 09 Oct '18

09 Oct '18

Good morning, We are in the process of moving our oVirt installation to a new storage solution. We have been 'move'-ing VM disks to the new storage without issue. We have several templates that use the old storage device - is there an equivalent process for moving template disks to the new storage unit? I see there is a 'copy' function in the template disk screen which creates a disk in the new storage domain. Can I then remove the original disk image from the original domain? Best regards, Mark *** *Mark Steele* CIO / VP Technical Operations | TelVue Corporation TelVue - We Share Your Vision 16000 Horizon Way, Suite 100 | Mt. Laurel, NJ 08054 800.885.8886 x128 | msteele(a)telvue.com | http://www.telvue.com twitter: http://twitter.com/telvue | facebook: https://www.facebook.com/telvue

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ovirt 4.2.6 and cockpit with plain hosts
by Gianluca Cecchi 09 Oct '18

09 Oct '18

Is cockpit supposed to run on plain CentOS hosts? I didn't have it installed: possibly because it started as a hypervisor host in version 3.x when cockpit not available. During updates it has not put in as a requirement package. I manually installed it and then enabled/started the cockpit.socket systemd unit. It seems started and I can correctly connect to https at tcp port 9090, but when doing a status of the cockpit.socket unit I see Oct 09 15:59:01 ov300 update-motd[22990]: /usr/share/cockpit/motd/update-motd: line 24: /run/cockpit/active.motd: No such file or directory Oct 09 15:59:01 ov300 ln[22998]: /bin/ln: failed to create symbolic link ‘/run/cockpit/motd’: No such file or directory Oct 09 15:59:01 ov300 systemd[1]: Listening on Cockpit Web Service Socket. Line 24 of /usr/share/cockpit/motd/update-motd : printf 'Web console: %s%s\n\n' "${hostname_url}" "${ip_url}" > /run/cockpit/active.motd and on the host [root@ov300 ~]# ll -d /run/c* drwxr-x---. 2 chrony chrony 60 May 24 16:18 /run/chrony -rw-r--r--. 1 root root 5 May 24 16:18 /run/chronyd.pid drwxr-xr-x. 2 root root 40 May 24 16:18 /run/console -rw-r--r--. 1 root root 5 May 24 16:18 /run/crond.pid ----------. 1 root root 0 May 24 16:18 /run/cron.reboot [root@ov300 ~]# Is this a bug? Can I manually create the " /run/cockpit" directory? Thanks, Gianluca

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Migrating to Gluster HCI - Export/Import
by Vincent Royer 09 Oct '18

09 Oct '18

I'm upgrading from 2 host w/ attached storage to 3-host HCI w/Gluster. What is the procedure for this? Is export domain depreciated? 1. Shut down and export all VMs - Do I use export domain? Or is the "Backup Domain" the newer method? 2. Detach domains from cluster and wipe hosts 3. Build HCI cluster, setup gluster bricks/vols 4. Attach backup domain and import VMs Thanks! Vincent

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oVirt guest tools
by Alex K 09 Oct '18

09 Oct '18

Hi all, I am running ovirt 4.2 with hosts based on CentOS 7. I see that the latest guest tools are the following: https://resources.ovirt.org/pub/ovirt-4.2/iso/oVirt-toolsSetup/4.2-3.el7/oV… https://resources.ovirt.org/pub/ovirt-4.2/iso/oVirt-toolsSetup/4.2-1.el7.ce… 4.2-3.el7 seems to have newer version than 4.2-1.el7.centos. Can I use 4.2-3.el7 ISO? Thanx, Alex

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Storage advice
by Brain Recursion 09 Oct '18

09 Oct '18

I have a small oVirt cluster running but I have been having problems with the storage and would like to completely start again with the storage infrastructure. Currently for storage I have a single server running windows storage server serving oVirt via iSCSI. I also have a smaller storage server which is currently not used. The oVirt cluster is not running a production environment but ideally I do not want to have to power it all off to patch the storage servers and oVirt cluster. 1x storage server, raid 10 24TB usable, 2x 10Gb ethernet 1x storage server, raid 10 4TB usable, 4x 1Gb ethernet 8x oVirt hosts, 1x10Gb ethernet on each 1x 24port 10Gb switch What would be the best way to utilise the storage servers? I was thinking about sticking CentOS on both servers and running Gluster with a 4TB replicated volume across both servers for the hosted engine and other critical VMs and then a 20TB non-replicated Gluster volume running on just the larger storage server for non critical VMs. I have another spare server which i could potentially use as a arbiter node. Would this work or would I have huge problems as the hardware performance of each storage server is so different? Any advice appreciated.

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