November 2020 - Users - Ovirt List Archives

Requesting for a help in resolving ovirt self hosted engine installation issue

by Jadavalluvar Sethuraman, Hariharan

Hello, Good Day! I'm Hariharan and I'm working as System Administrator in Linux platform for RWTH Uniklink - Germany. Currently I'm managing the Ovirt environment and I'm very new to this domain. Currently I'm facing an issue with Ovirt self hosted engine installation 4.4 in CentOS 8 server. I have an issue when mounting the glusterfs storage to a target machine. Below is the exact issue what I face; Error: "changed": false, "msg": "Error: the target storage domain contains only 22.0GiB of available space while a minimum of 61.0GiB is required If you wish to use the current target storage domain by extending it, make sure it contains nothing before adding it. Note: (gluster storage was installed and configured in Linux work station with adding additional hard disk in one of the two gluster storage linux work station. I used replicated volumes (replica 2) in creating gluster volumes) Hardware detail: device model: Dell R540 Capacity: 240 GB I tried best possibilities to resolve this issue but still I'm facing the same issue. Could you please help me in resolving this issue with your guidance or support. Hariharan Jadavalluvar Sethuraman Systemadministrator der Brain Imaging Facility (BIF) des interdisziplinären Zentrums für klinische Forschung (IZKF) Universitätsklinikum Aachen (AöR) Pauwelsstraße 30 52074 Aachen Tel: +49 241 80-89150 E-Mail: hjadavalluva(a)ukaachen.de<mailto:rrodriguez@ukaachen.de> ________________________________

4 years, 4 months

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Ovirt 4.4 ilo_ssh version HP ILO3. ERROR: Unable to connect/login to fencing device

by melnyksergii＠gmail.com

Dears, I have a 3 nodes with HP blade servers G7 and ILO3. ILO3 with the latest firmware 1.93 from Aug 07 2020. I'm try to migrate from Ovirt 4.3 to 4.4 with Centos 8, but I had a problem with setup ssh ilo fence on this nodes. In Ovirt 4.3 with Centos 7 all is works. When I try to Test fence, I see ERROR: Unable to connect/login to fencing device. When I try to use /usr/sbin/fence_ilo_ssh I see the same error. So, I know where is a problem. The problem in an old ssh security keys HostKeyAlgorithms=+ssh-dss. When I add to /root/.ssh/config some exclude for use HostKeyAlgorithms=+ssh-dss I can connect to ilo over ssh from root with: /usr/sbin/fence_ilo_ssh -a 10.0.11.157 -l user -p passwordh -x -u 22 --login-timeout=10 -o status and see: Status: ON But when I try again setup ilo_ssh fence in Ovirt-engine UI I still have the same ERROR: Unable to connect/login to fencing device. How can I solve this problem in Ovirt? Thanks

4 years, 4 months

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HCI with 5 node quest

by simon＠justconnect.ie

I have a 3 node HCI setup with 2 Replica 3 volumes using nodes 1, 2 & 3 and have added 2 additional Compute nodes to this Cluster. What is stopping me from adding nodes 4 & 5 as Gluster Peers and creating a glusterfs Replica 3 Volume using nodes 3, 4 & 5? Shimme

4 years, 4 months

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ovirt glusterfs

by garcialiang.anne＠gmail.com

Hello, I've some problem with Hyperconverged Configure Gluster storage and oVirt hosted engine. I've the message error: failed: [node2.xxxxx.fr] (item={u'key': u'gluster_vg_sdb', u'value': [{u'vgname': u'gluster_vg_sdb', u'pvname': u'/dev/sdb'}]}) => {"ansible_loop_var": "item", "changed": false, "err": " Device /dev/sdb excluded by a filter.\n", "item": {"key": "gluster_vg_sdb", "value": [{"pvname": "/dev/sdb", "vgname": "gluster_vg_sdb"}]}, "msg": "Creating physical volume '/dev/sdb' failed", "rc": 5} Could you help me for know where is the problem, please? Thanks, Anne Garcia

4 years, 4 months

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POWER9 (ppc64le) Support on oVirt 4.4.1

by Vinícius Ferrão

Hello, I was using oVirt 4.3.10 with IBM AC922 (POWER9 / ppc64le) without any issues. Since I’ve moved to 4.4.1 I can’t add the AC922 machine to the engine anymore, it complains with the following error: The host CPU does not match the Cluster CPU type and is running in degraded mode. It is missing the following CPU flags: model_POWER9, powernv. Any ideia of what’s may be happening? The engine runs on x86_64, and I was using this way on 4.3.10. Machine info: timebase : 512000000 platform : PowerNV model : 8335-GTH machine : PowerNV 8335-GTH firmware : OPAL MMU : Radix Thanks,

4 years, 4 months

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Re: Migrate hosted-engine to new storage domain

by Yedidyah Bar David

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

4 years, 4 months

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Migrate hosted-engine to new storage domain

by Matthew.Stier＠fujitsu.com

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.

4 years, 4 months

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Select host for image upload

by C Williams

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

4 years, 4 months

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Q: Failed creating snapshot

by Andrei Verovski

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

4 years, 4 months

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ovirt installation with proxy or katello

by Markus Schaufler

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

4 years, 4 months

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Users November 2020