[ovirt-users] Re: Singe host installation

[Jakov Sosic]

On 4/5/24 13:17, Gianluca Cecchi wrote:
It is possible to have an environment with an external engine (physical 
one or as a virtual machine in an external env) and then use a host as 
the only hypervisor


If the storage component has to be provided by that host itself you have 
to use local storage based datacenter and storage domains as well:

https://www.ovirt.org/documentation/administration_guide/index.html#sect-Preparing_and_Adding_Local_Storage
 

If you want to retain the default datacenter created during 
installation, you have to edit it and set it as "Local" in "Storage 
Type" section.

Or you could create  a new DC with that setting

There is also the option to install with Self Hosted Engine and use 
shared storage (NFS, SAN, iSCSI,...) if you have one available:

https://www.ovirt.org/documentation/installing_ovirt_as_a_self-hosted_engine_using_the_command_line/index.html#Installing_the_self-hosted_engine_deployment_host_SHE_cli_deploy
 

Or with the same guide use the host storage itself, but as GlusterFS and 
eventually extend it later if/when available with other hosts
Of course in that case you loose all the HA functions available at host 
level



Idea is to run a single host, which will be used just for some tests.

So, hosted engine on that single host is not a possibility if the 
storage will be local storage provided by that single host?


Thanks,

Jakov
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[ovirt-users] Singe host installation

[Jakov Sosic]

Hi guys,

I want to run oVirt on a single host, is that possible?


Running external engine is a possibility.


Thanks,

Jakov
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[ovirt-users] Ovirt node 4.2.1.1 patch/upgrade?

[Jakov Sosic]

Hi guys,

how do you upgrade ovirt nodes? I can't figure out the best practice 
from documentation.


If I try `Check for upgrades` from oVirt Hosted engine interface, 
nothing happens.


If I run `yum update` on an ovirt node, I get offered the following:


```
Installing:
 ovirt-node-ng-image-update  noarch 
 4.2.3.1-1.el7ovirt-4.2 
 643 M
 replacing  ovirt-node-ng-image-update-placeholder.noarch 
4.2.1.1-1.el7.centos


```

I can access all the CentOS packages if I run `yum update 
--enablerepos=base,updates,extras`.



So, what is the proper way to do it?


Thanks,

Jakov
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Re: [ovirt-users] Can't add newly reinstalled ovirt node

[Jakov Sosic]

On 05/04/2018 01:31 PM, Ales Musil wrote:



On Fri, May 4, 2018 at 11:46 AM, Dominik Holler <dhol...@redhat.com 
<mailto:dhol...@redhat.com>> wrote:


On Thu, 3 May 2018 22:26:57 +0200
    Jakov Sosic <jso...@gmail.com <mailto:jso...@gmail.com>> wrote:

> Hi,
> 
> after installing 4.2.1.1 oVirt node, and adding it in hosted oVirt 
> engine I get the following error:
> 
> Ansible host-deploy playbook execution has started on host vhost01.

> Ansible host-deploy playbook execution has successfully finished on
> host vhost01.
> Status of host vhost01 was set to NonOperational.
> Host vhost01 does not comply with the cluster Lenovo networks, the 
> following networks are missing on host: 'VLAN10'

> Host vhost01 installation failed. Failed to configure management
> network on the host.
> 


Can you please share links to the vdsm.log and supervdsm.log of the
host?

Seems like this one to me 
https://bugzilla.redhat.com/show_bug.cgi?id=1570388


Yes, it was a required network...

Now, what I did, after another clean install was:

nmcli device set eno1 managed no
nmcli device set eno2 managed no
nmcli device set eno3 managed no
nmcli device set eno4 managed no

and after this, adding host passed.

I did remove all the required networks too, so I'm wondering if that was 
the cause...



I can try to add back required network, and reinstall host with using 
the `nmcli` trick.

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[ovirt-users] Can't add newly reinstalled ovirt node

[Jakov Sosic]

Hi,

after installing 4.2.1.1 oVirt node, and adding it in hosted oVirt 
engine I get the following error:


Ansible host-deploy playbook execution has started on host vhost01.
Ansible host-deploy playbook execution has successfully finished on host 
vhost01.

Status of host vhost01 was set to NonOperational.
Host vhost01 does not comply with the cluster Lenovo networks, the 
following networks are missing on host: 'VLAN10'
Host vhost01 installation failed. Failed to configure management network 
on the host.


One more interesting thing:

Compute => Hosts => vhost02 => Network interfaces

is empty... there are no recognized interfaces on this host.


Any idea?

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