- Users - oVirt List Archives

Re: Migrate hosted-engine to new storage domain
by Yedidyah Bar David 03 Nov '20

03 Nov '20

On Tue, Nov 3, 2020 at 7:07 AM Matthew.Stier(a)fujitsu.com <Matthew.Stier(a)fujitsu.com> wrote: > > I’ve migrated my iSCSI storage to a new array, and the only thing remaining is to migrate the hosted-engine. > > > > Any directions on how I should proceed. I understand that I will need to back-up the existing, create a new hosted-engine on the new storage, specifying the backup a reference. > > > > I just would like to see a step-by-step, so I know I am doing everything, and in the right order. Generally speaking, you should follow the hosted-engine backup and restore flows/documents. I strongly suggest to test this first on a test machine before production. You can take a backup without downtime. Restore on some machine (can be a VM, with nested-kvm) that has no access to your production storage and hosts (to make sure the restored engine won't start managing them/competing with the production one). See that all looks good. Then plan production... Good luck and best regards, -- Didi

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Migrate hosted-engine to new storage domain
by Matthew.Stier＠fujitsu.com 03 Nov '20

03 Nov '20

I've migrated my iSCSI storage to a new array, and the only thing remaining is to migrate the hosted-engine. Any directions on how I should proceed. I understand that I will need to back-up the existing, create a new hosted-engine on the new storage, specifying the backup a reference. I just would like to see a step-by-step, so I know I am doing everything, and in the right order.

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Select host for image upload
by C Williams 02 Nov '20

02 Nov '20

Hello, I am having problems selecting the host that I want to use for .iso and other image uploads via the oVirt Web Console. I have 20+ servers of varying speeds. Somehow oVirt keeps wanting to select my oldest and slowest system to use for image uploads. Please Help ! Thank You ! C Williams

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Q: Failed creating snapshot
by Andrei Verovski 02 Nov '20

02 Nov '20

Hi, I have oVirt 4.4 with nodes 4.2.8 Attempt to create snapshot failed with: EventID 10802 VDSM node11 command SnapshotVDS failed: Message timeout can be caused by communication issues. Event ID 2022 Add-disk operation failed to complete. However, snapshot is on disk since VM now takes 1200GB instead of 500. Yes snapshot list in VM details is empty. How to recover disk space occupied by unsuccessful snapshot ? I looked at /vmraid/nfs/disks/xxxx-xxxx-xxx/images and there are no distinctive files which I can identify as snapshot. Thanks in advance. Andrei

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ovirt installation with proxy or katello
by Markus Schaufler 02 Nov '20

02 Nov '20

Hi, in our environment we need to either specify proxy settings or use foreman/katello repositories. I'd like to test both ways but the installer with the ansible scripts behind don't seem to use the hosts settings. Where do I have to adopt the install scripts and will there be in future a GUI option to specify those things? Can't understand why disconnected environments or environments with proxies aren't better taken into consideration...? Thanks in advance, Markus

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Question about OVN MTU
by Strahil Nikolov 02 Nov '20

02 Nov '20

Hello All, I would like to learn more about OVN and especially the maximum MTU that I can use in my environment. Current Setup 4.3.10 Network was created via UI -> MTU Custom -> 8976 -> Create on External Provider -> Connect to Physical Network So my physical connection is MTU 9000 and I have read that Geneve uses 24 bits (maybe that's wrong ?) , thus I have reduced the MTU to 8976. I did some testing on the VMs and ping with payload of '8914' was the maximum I could pass without fragmenting and thus the MTU on the VMs was set to 8942. Did I correctly configure the test network's MTU and am I understanding it correctly that we need extra 34 bits inside the network for encapsulation ? I have checked https://www.ovirt.org/develop/release-management/features/network/managed_m… but I don't see any refference how to calculate the max MTU. Best Regards, Strahil Nikolov

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different rendering chrome and firefox and corruptions in both
by Gianluca Cecchi 01 Nov '20

01 Nov '20

Hello, I'm using Fedora 31 with google-chrome-stable-86.0.4240.111-1.x86_64 firefox-82.0-4.fc31.x86_64 Engine was deployed from a CentOS Linux 8.2 host and then with hosted engine wizard, using the appliance rpm (Package ovirt-engine-appliance.x86_64 4.4-20200916125954.1.el8) Connecting to the same 4.4.2 engine I get: 1) different landing page graphics firefox: https://drive.google.com/file/d/142Ch7qXmmIP9sQQCS1rD75yexX64RmSu/view?usp=… chrome: https://drive.google.com/file/d/1KPvlNk65ltIBhr8GFdVm-GMtfq1Elt7J/view?usp=… 2) corruption in several editing pages in firefox, where a sort of top white part seems to compromise the lower part of the window, making impossible to complete. eg in new network I don't see the lower part related to MTU...: https://drive.google.com/file/d/18aQfDbl_9R9oQsTMwebJSiRZHETkUWIc/view?usp=… 3) in Stotrage --> volumes page if I click on a volume, firefox shows no problem, but chrome gives a gui exception: https://drive.google.com/file/d/1svzQjrGctRMQFvZEpW9zpOlUbv8XXl3Q/view?usp=… Gianluca

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Discard after Delete
by Joris DEDIEU 01 Nov '20

01 Nov '20

Hi list, I forgot to check "Discard after Delete" when creating a new volume. Is there a way (other than to empty the volume) to reclaim free blocks. In https://bugzilla.redhat.com/show_bug.cgi?id=981626 I read about blkdiscard, but as far as I understand it will erase my VMs ... Thanks for your answers Joris

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Training Video or document or training session
by info＠worldhostess.com 01 Nov '20

01 Nov '20

Can someone recommend a training video of some kind of step by step document to do the installation and administration for OVirt? Or if someone that wants to do a one on one online training? I would be super excited to do online training. I have been trying many time to install and I am sure I make some mistakes because I can't get OVirt to work properly. I have done numerous installations during the last few weeks. Yours Sincerely, Henni

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oVirt 4.3.10 RHEL 7.9 support
by KSNull Zero 30 Oct '20

30 Oct '20

Hello! Does oVirt 4.3.10 supports RHEL 7.9 hosts ? Is it safe to update ovirt 4.3.10 hosts to the latest RHEL 7.9 ? Thank you.

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