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Re: [ovirt-devel] ovirt and AMD virtualization bug
by Nir Soffer 09 Mar '19

09 Mar '19

On Sat, Mar 9, 2019 at 1:24 AM Hetz Ben Hamo <hetz(a)hetz.biz> wrote: > Hi, > > I've done some research on a bug which I found on the AMD Zen/Zen+ based > CPU's. Apparently, when using nested virtualization, the CPU doesn't expose > the "monitor" CPU flag. > > While other virtualization solutions (Xen, ESXi, Hyper-V) don't care about > this issue and let you run with nested without any problem, oVirt doesn't > let you launch or create any VM and it complains that this "monitor" CPU > flag is missing. > > Since QEMU/KVM cannot do anything about it, I was wondering if the ovirt > dev team could ignore this flag please. > Adding some people and relevant mailing lists. Nir

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oVirt 4.3 and AMD Opteron G3 CPU
by Jiří Sléžka 08 Mar '19

08 Mar '19

Hi, I know, old AMD Opterons G3 are unsupported in oVirt 4.3 but anyway, is there a way to switch cluster to 4.3 mode with these old CPUs? On the other hand 4.2 mode is no problem, I just would like to test new stuff (on legacy hw ;-) Cheers, Jiri Slezka

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Re: oVirt Performance (Horrific)
by Strahil 08 Mar '19

08 Mar '19

Hi Drew, During my tests on gluster v3, using 'disable.nfs: false' and using that as ovirt storage brought maximum performance for my 1 Gbit/s network. Can you try using NFS and if it works well, you can disable nfs and get NFS Ganesha up and running. It seems that FUSE in gluster v5 is performing way better, but still it is not the optimal solution. Best Regards, Strahil Nikolov

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Re: error failed to execute stage 'misc configuration': failed to start service 'openvswitch'
by Strahil 08 Mar '19

08 Mar '19

This should work only for EL7 based systems. Find what provides it: yum whatprovides '*/openvswitch.service' Then check if it is installed: rpm -qa <replace with output of previous command> If not, install via 'yum install <replace with output of previous command>' Best Regards, Strahil Nikolov

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error failed to execute stage 'misc configuration': failed to start service 'openvswitch'
by Katia Monjes 08 Mar '19

08 Mar '19

I'm starting in the world of ovirt, so I would appreciate the help I'm trying to install ovirt-engine and it gives me the following error error failed to execute stage 'misc configuration': failed to start service 'openvswitch' Could someone guide me to find the solution? thanks

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LUN ID Change on Storage Domain
by Alan G 08 Mar '19

08 Mar '19

Hi, I made an error when provisioning a new FC storage domain and gave it LUN ID 0 by mistake. I now need to move it to another ID. Can I do this: - 1. Shutdown all VMs on the domain. 2. Put the domain in maintenance. 3. Change the LUN ID. 4. Force SCSI rescan on every host. 5. Bring the domain out of maintenance. Will oVIrt still recognise the domain on a different LUN ID? Thanks, Alan

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Re: Infiniband Usage / Support
by Strahil 08 Mar '19

08 Mar '19

When you create the new network, can't you set the MTU also? I know that UI allows changing MTU, but never checked if it can be set during definition. Best Regards, Strahil Nikolov

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Infiniband Usage / Support
by Andrey Rusakov 08 Mar '19

08 Mar '19

Hi, I got a config with IB Storage (IPoIB). I would like to extend IB usage to OVN network, but trying to do this i find some problems ... Problem #1 (IPoIB Storage Network) I configure IPoIB Before adding to oVirt cluster (I did it using Cockpit) Create [Bond], assign IP, change MTU. At this moment of time everything is fine... But - I am not able to assign IP/MTU using oVirt Cluster. And I can't perform any changes using Cockpit as IB interfaces are "Unmanaged Interfaces". Problem #1.1 It will be great to avoid users adding IPoIB networks using brctl, as it will not work... Problem #2 What is correct way to move OVN to IPoIB network?

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Re: Infiniband Usage / Support
by Douglas Duckworth 08 Mar '19

08 Mar '19

It works out of the box if you have OFED on hosts On Wed, Mar 6, 2019, 1:32 PM Andrey Rusakov <anrusakov(a)gmail.com<mailto:anrusakov@gmail.com>> wrote: Hi, looking for help... _______________________________________________ Users mailing list -- users(a)ovirt.org<mailto:users@ovirt.org> To unsubscribe send an email to users-leave(a)ovirt.org<mailto:users-leave@ovirt.org> Privacy Statement: https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_site_pri… oVirt Code of Conduct: https://urldefense.proofpoint.com/v2/url?u=https-3A__www.ovirt.org_communit… List Archives: https://urldefense.proofpoint.com/v2/url?u=https-3A__lists.ovirt.org_archiv…

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Info about firewall type and 4.3
by Gianluca Cecchi 08 Mar '19

08 Mar '19

Hello, I have updated a 4.2.8 environment to 4.3.1 So far so good, I have updated cluster level and dc level from 4.2 to 4.3 I notice the field "Firewall type" in my cluster and it is currently set to "iptables". My 3 hosts are CentOS 7.6 plain servers. My external engine is CentOS 7.6 and already with firewalld I seem to remember in the long run only firewalld supported also on hosts. Is this correct and in case is there an ETA/version? What would be the steps to pass my current hosts to firewalld in case? Currently I see: iptables enabled and running ip6tables disabled ebtables disabled Thanks in advance, Gianluca

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