September 2019 - Users - oVirt List Archives

Best Practices to update a Windows VM
by marzoccafabio＠gmail.com 19 Sep '19

19 Sep '19

Once created a "main" VM we keep it alone to embed Windows updates. Then we clone this into a "service" VM which we convert into a Template to deploy to users. Now, what is the Best Practice to update WIndows OS for the all the users?

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Disk locked after backup
by Fabio Cesar Hansen 19 Sep '19

19 Sep '19

Hi. I am using the https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download… script to backup my vms. The problem is that always after the backup finishes, the snapshot is locked. Has anyone ever experienced this? Node version: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: oVirt Node 4.3.5.2 Kernel Version: 3.10.0 - 957.27.2.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.7.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.12 VDSM Version: vdsm-4.30.24-1.el7 Engine version: 4.3.5.5-1.el7 Thanks

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Re: disable selinux ?
by Strahil 19 Sep '19

19 Sep '19

I think I used to have a vdsm issue a long time ago. Why would you disable SELINUX, it provides various options to adapt to non-SELINUX aware apps. Best Regards, Strahil NikolovOn Sep 19, 2019 10:54, Nardus Geldenhuys <nardusg(a)gmail.com> wrote: > > Hi > > Hope you are well. Quick question. > > Can I disable SELINUX on the ovirt nodes ? Will there be any issues. I know that you cant migrate from SELINUX to DISABLED SELINUX nodes. > > Regards > > Nar

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Re: Linked Clones?
by Strahil 19 Sep '19

19 Sep '19

At least KVM can do that. If I understood correctly, you want a base disk for multiple VMs and the delta should be stored in separate disk, right? I am using VDO (with gluster) under my storage, so any duplicate data is deduplicated (and if yiu enable compression - compressed) by VDO. Have you thought about VDO - it works with almost any block storage ?Of course both technology will reduce the I/O performance compared to raw storage. Also, let's see if actually oVirt has such option... Best Regards, Strahil Nikolov On Sep 19, 2019 10:23, marzoccafabio(a)gmail.com wrote: > > Hi, > > I am approaching and studying oVirt in order to propose the solution to a customer as a replacement for a commercial solution they have now. > They only need Desktop virtualization. > Sorry for the silly question, but I can't find a way to deploy a VM (template) to users as a "linked-clone", meaning that the users' image still refers to the original image but modification are written (and afterwards read) from a new location. This technique is called Copy-on-write. > Can this be achieved with oVirt? > > Fabio > _______________________________________________ > Users mailing list -- users(a)ovirt.org > To unsubscribe send an email to users-leave(a)ovirt.org > Privacy Statement: https://www.ovirt.org/site/privacy-policy/ > oVirt Code of Conduct: https://www.ovirt.org/community/about/community-guidelines/ > List Archives: https://lists.ovirt.org/archives/list/users@ovirt.org/message/3XITFLEJDICOF…

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Upgrade from 4.3.5 rc5 to 4.3.6 rc5 strange errors
by Strahil 19 Sep '19

19 Sep '19

Hello Community, I was waiting for 7.7 to come up before I upgrade my lab. The engine got upgraded without issues, same for OS - but after the system powered up I receive the following: [root@ovirt1 ~]# ssh engine root@engine's password: Last login: Wed Sep 18 19:48:32 2019 from ovirt1.localdomainnet_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) net_mlx5: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory net_mlx5: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx5) PMD: net_mlx4: cannot load glue library: libibverbs.so.1: cannot open shared object file: No such file or directory PMD: net_mlx4: cannot initialize PMD due to missing run-time dependency on rdma-core libraries (libibverbs, libmlx4) [root@engine ~]# Anyone else experiecing this ? I can't find libmlx4 or libmlx5 in the repos. P.S.: I have a gluster snapshot, so I can rollback if needed. For now I will postpone my hosts' upgrade. Best Regards, Strahil Nikolov

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how to add devices to a qemu config.xml of a virtual machine
by pascal＠butterflyit.com 19 Sep '19

19 Sep '19

Hi, I would like to be able to share a local folder with my remote desktop hosted by ovirt. Looking everywhere it seems that what is needed is to have spice-webdavd installed on the guest and have qemu set with this channel org.spice-space.webdav.0 I don't see in the web admin interface any ways to add those channels, but found on the web an addon which could maybe work vdsm-hook-qemucmdline but can't find a package compiled for the latest version and how to install it Also I noticed in the latest version of ovirt 4.3.5 there are 2 flags: Enable SPICE file transfer Enable SPICE clipboard copy and paste But that doesn't seem to change anything Any help appreciated

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Disk locked after backup
by fchansen＠outlook.com 18 Sep '19

18 Sep '19

Hi. I am using the https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download… script to backup my vms. The problem is that always after the backup finishes, the snapshot is locked. Has anyone ever experienced this? Node version: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: oVirt Node 4.3.5.2 Kernel Version: 3.10.0 - 957.27.2.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.7.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.12 VDSM Version: vdsm-4.30.24-1.el7 Engine version: 4.3.5.5-1.el7 Thanks

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Disk locked after backup
by fchansen＠outlook.com 18 Sep '19

18 Sep '19

Hi. I am using the https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download… script to backup my vms. The problem is that always after the backup finishes, the snapshot is locked. Has anyone ever experienced this? Node version: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: oVirt Node 4.3.5.2 Kernel Version: 3.10.0 - 957.27.2.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.7.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.12 VDSM Version: vdsm-4.30.24-1.el7 Engine version: 4.3.5.5-1.el7 Thanks

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Disk locked after backup
by Fabio Cesar Hansen 18 Sep '19

18 Sep '19

Hi. I am using the https://github.com/oVirt/ovirt-engine-sdk/blob/master/sdk/examples/download… script to backup my vms. The problem is that always after the backup finishes, the snapshot is locked. Has anyone ever experienced this? Node version: OS Version: RHEL - 7 - 6.1810.2.el7.centos OS Description: oVirt Node 4.3.5.2 Kernel Version: 3.10.0 - 957.27.2.el7.x86_64 KVM Version: 2.12.0 - 18.el7_6.7.1 LIBVIRT Version: libvirt-4.5.0-10.el7_6.12 VDSM Version: vdsm-4.30.24-1.el7 Engine version: 4.3.5.5-1.el7 Thanks

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Re: Changing ISO domains
by Strahil 18 Sep '19

18 Sep '19

Actually ISO domains are deprecated as stated by the devs in https://bugzilla.redhat.com/show_bug.cgi?id=1673059 There is no warning yet, which makes the confusion. Best Regards, Strahil NikolovOn Sep 18, 2019 15:22, Gianluca Cecchi <gianluca.cecchi(a)gmail.com> wrote: > > On Wed, Sep 18, 2019 at 12:41 PM Mark Steele <msteele(a)telvue.com> wrote: >> >> Well - not in 3.5 :-) >> >> *** >> 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 >> >> >> On Wed, Sep 18, 2019 at 6:24 AM Strahil <hunter86_bg(a)yahoo.com> wrote: >>> >>> ISO domains are deprecated. >>> I guess you can upload to regular data domains. >>> >>> Best Regards, >>> Strahil Nikolov > > But afaik also on 4.3 only export domains are deprecated, not ISO ones. > See here for RHV too: > https://access.redhat.com/documentation/en-us/red_hat_virtualization/4.3/ht… > > Still it remains the problem of using ISOs on block based data domains when trying to swap CDs > https://bugzilla.redhat.com/show_bug.cgi?id=1589763 > > So in these scenarios ISO domains are still needed > HIH, > Gianluca

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