[ovirt-users] snapshot solution: Existing snapshots that were taken after this one will be erased.

[dhanaraj.ramesh--- via Users]

Hi Team,

when I want to commit the older snapshots I'm getting warning stating " 
Existing snapshots that were taken after this one will be erased.". is there 
any way we can retain the latest snapshots as is in the chain?

I knew cloning and template export options are there to secure that latest 
snapshot data but these are will consume additional space in storage and take 
time. 
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[ovirt-users] Re: oVirt 4.4.4 not dislaying Sign-on Screen

[louisb]

One more note:  When I look at the Engine Database, Data Warehouse Database I 
can see that Tables are created as part of the installation of oVirt 4.4.4.   
Therefore re-forcing that the installation process was succsssful.  
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[ovirt-users] Re: oVirt 4.4.4 not dislaying Sign-on Screen

[louisb]

sudo engine-setup
[ INFO  ] Stage: Initializing
[ INFO  ] Stage: Environment setup
  Configuration files: 
/etc/ovirt-engine-setup.conf.d/10-packaging-jboss.conf, 
/etc/ovirt-engine-setup.conf.d/10-packaging.conf
  Log file: 
/var/log/ovirt-engine/setup/ovirt-engine-setup-20210304181530-lepm6a.log
  Version: otopi-1.9.2 (otopi-1.9.2-1.el8)
[ INFO  ] Stage: Environment packages setup
[ INFO  ] Stage: Programs detection
[ INFO  ] Stage: Environment setup (late)
[ INFO  ] Stage: Environment customization
 
  --== PRODUCT OPTIONS ==--
 
  Configure Cinderlib integration (Currently in tech preview) (Yes, No) 
[No]: 
  Configure Engine on this host (Yes, No) [Yes]: 
 
  Configuring ovirt-provider-ovn also sets the Default cluster's 
default network provider to ovirt-provider-ovn.
  Non-Default clusters may be configured with an OVN after installation.
  Configure ovirt-provider-ovn (Yes, No) [Yes]: 
  Configure WebSocket Proxy on this host (Yes, No) [Yes]: 
 
  * Please note * : Data Warehouse is required for the engine.
  If you choose to not configure it on this host, you have to configure
  it on a remote host, and then configure the engine on this host so
  that it can access the database of the remote Data Warehouse host.
  Configure Data Warehouse on this host (Yes, No) [Yes]: 
  Configure Grafana on this host (Yes, No) [Yes]: 
  Configure VM Console Proxy on this host (Yes, No) [Yes]: 
 
  --== PACKAGES ==--
 
[ INFO  ] Checking for product updates...
[ INFO  ] No product updates found
 
  --== NETWORK CONFIGURATION ==--
 
  Host fully qualified DNS name of this server [Lenovo-P52]: 
Lenovo-P52.cscd.net
 
  Setup can automatically configure the firewall on this system.
  Note: automatic configuration of the firewall may overwrite current 
settings.
  Do you want Setup to configure the firewall? (Yes, No) [Yes]: 
[ INFO  ] firewalld will be configured as firewall manager.
 
  --== DATABASE CONFIGURATION ==--
 
  Where is the DWH database located? (Local, Remote) [Local]: Remote
  Where is the Engine database located? (Local, Remote) [Local]: Remote
 
  Please create the database for the DWH to use.
  To create a user:
  postgres=# create role  with login encrypted password 
'';
  To create a database:
  postgres=# create database  owner  template 
template0 encoding 'UTF8' lc_collate 'en_US.UTF-8' lc_ctype 'en_US.UTF-8';
 
  If you plan for a remote application to use this database, make sure 
it can be accessed remotely.
 
  DWH database host [localhost]: Lenovo-P52
  DWH database port [5432]: 
  DWH database secured connection (Yes, No) [No]: 
  DWH database name [ovirt_engine_history]: 
  DWH database user [ovirt_engine_history]: 
  DWH database password: 
 
  Please create the database for the Engine to use.
  To create a user:
  postgres=# create role  with login encrypted password 
'';
  To create a database:
  postgres=# create database  owner  template 
template0 encoding 'UTF8' lc_collate 'en_US.UTF-8' lc_ctype 'en_US.UTF-8';
 
  If you plan for a remote application to use this database, make sure 
it can be accessed remotely.
 
  Engine database host [localhost]: Lenovo-P52
  Engine database port [5432]: 
  Engine database secured connection (Yes, No) [No]: 
  Engine database name [engine]: 
  Engine database user [engine]: 
  Engine database password: 
  Grafana database user [ovirt_engine_history_grafana]: 
  Grafana database password: 
 
  --== OVIRT ENGINE CONFIGURATION ==--
 
  Engine admin password: 
  Confirm engine admin password: 
  Application mode (Virt, Gluster, Both) [Both]: 
  Use default credentials (admin@internal) for ovirt-provider-ovn (Yes, 
No) [Yes]: 
 
  --== STORAGE CONFIGURATION ==--
 
  Default SAN wipe after delete (Yes, No) [No]: 
 
  --== PKI CONFIGURATION ==--
 
  Organization name for certificate [cscd.net]: 
 
  --== APACHE CONFIGURATION ==--
 
  Setup can configure the default page of the web server to present the 
application home page. This may conflict with existing applications.
  Do you wish to set the application as the default page of the web 
server? (Yes, No) [Yes]: No
 
  Setup can configure apache to use SSL using a certificate issued from 
the internal CA.
  Do you wish Setup to configure that, or prefer to perform that 
manually? 

[ovirt-users] Re: EL7 Host support in 4.4.x

[Marko Vrgotic]

Thank you Nir,

Appreciate fast response.

-
kind regards/met vriendelijke groeten

Marko Vrgotic
Sr. System Engineer @ System Administration

ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgo...@activevideo.com
w: www.activevideo.com

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have received this message in error, please immediately notify the sender 
and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or 
destroy any copy of this message.



From: Nir Soffer 
Date: Thursday, 4 March 2021 at 17:29
To: Marko Vrgotic 
Cc: users@ovirt.org 
Subject: Re: [ovirt-users] EL7 Host support in 4.4.x

***CAUTION: This email originated from outside of the organization. Do not 
click links or open attachments unless you recognize the sender!!!***
On Thu, Mar 4, 2021 at 6:06 PM Vrgotic, Marko 
mailto:m.vrgo...@activevideo.com>> wrote:
Hi oVirt,

After reviewing the 
https://access.redhat.com/articles/973163
I wonder is it possible to have a Host running EL7, in oVirt 4.4 to support 
ability to still run OSs like Win 2008R2, or is it a hard NO?

Theoretically vdsm can run on EL7 if you install python3, but without libvirt
and qemu versions required in 4.4 it will not be very useful.

If you need EL7, use ovirt 4.3.

Nir

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[ovirt-users] Re: Gluster volume engine stuck in healing with 1 unsynched entry & HostedEngine paused

[souvaliotimaria]

Hello again, 
I've tried to heal the brick with latest-mtime, but I get the following:

gluster volume heal engine split-brain latest-mtime 
/80f6e393-9718-4738-a14a-64cf43c3d8c2/images/d5de54b6-9f8e-4fba-819b-ebf6780757d2/a48555f4-be23-4467-8a54-400ae7baf9d7
Healing 
/80f6e393-9718-4738-a14a-64cf43c3d8c2/images/d5de54b6-9f8e-4fba-819b-ebf6780757d2/a48555f4-be23-4467-8a54-400ae7baf9d7
 failed: File not in split-brain.
Volume heal failed.

Should I try the solution described in this question, where we manually remove 
the conflicting entry, triggering the heal operations? 
https://lists.ovirt.org/archives/list/users@ovirt.org/thread/RPYIMSQCBYVQ654HYGBN5NCPRVCGRRYB/#H6EBSPL5XRLBUVZBE7DGSY25YFPIR2KY
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[ovirt-users] Re: Create update and security plan

[Sandro Bonazzola]

Il giorno gio 4 mar 2021 alle ore 14:59 Gilson Schmidt <
gilson.g...@gmail.com> ha scritto:

> Hi
>
> We have a large hypervisors park, and now we are starting to adopt oVirt.
> And I need an update and security plan for oVirt Nodes.
>
> I need to know:
>   - What is the update cycle for oVirt?
>

oVirt is an opensource project, as such it gets released on a non-regular
cycle of about 6-8 weeks, as soon as a release candidate is considered to
contain enough content and stable enough to be used on a production system.
I'll let the other questions be answered by large companies using oVirt.



>   - How large companies treat the security of oVirt Node.
>  What is the frequency of updates;
>  Is an additional service enabled / installed on oVirt Node?
>  Is SSH enabled maintained?
>  What is the sysadmin access format? Currently on other hypervisors
> (Xen) using Vault, or we disable SSH on ESXi.
>  How do large companies configure oVirt to comply with the needs
> passed on by the Security Team?
>
> Tks very much.


-- 

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING, EMEA R&D RHV

Red Hat EMEA 

sbona...@redhat.com


*Red Hat respects your work life balance. Therefore there is no need to
answer this email out of your office hours.*
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[ovirt-users] Difference between edit cluster and upgrade?

[Gianluca Cecchi]

Hello,
supposing I upgrade my env from 4.3 to 4.4.
Then I can update my clusters' compatibility from 4.3 to 4.5.

I can do it in two ways:

1) select cluster line, "edit" button and change "Compatibility Version"
from 4.3 to 4.5
2) select cluster line, "upgrade" button

correct?

What is the difference?

Thanks,
Gianluca
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[ovirt-users] Re: EL7 Host support in 4.4.x

[Nir Soffer]

On Thu, Mar 4, 2021 at 6:06 PM Vrgotic, Marko 
wrote:

> Hi oVirt,
>
>
>
> After reviewing the https://access.redhat.com/articles/973163
>
> I wonder is it possible to have a Host running EL7, in oVirt 4.4 to
> support ability to still run OSs like Win 2008R2, or is it a hard NO?
>

Theoretically vdsm can run on EL7 if you install python3, but without
libvirt
and qemu versions required in 4.4 it will not be very useful.

If you need EL7, use ovirt 4.3.

Nir
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[ovirt-users] [ANN] oVirt 4.4.5 Eighth Release Candidate is now available for testing

[Lev Veyde]

oVirt 4.4.5 Eighth Release Candidate is now available for testing

The oVirt Project is pleased to announce the availability of oVirt 4.4.5
Eighth Release Candidate for testing, as of March 4th, 2021.

This update is the fifth in a series of stabilization updates to the 4.4
series.
How to prevent hosts entering emergency mode after upgrade from oVirt 4.4.1

Note: Upgrading from 4.4.2 GA or later should not require re-doing these
steps, if already performed while upgrading from 4.4.1 to 4.4.2 GA. These
are only required to be done once.

Due to Bug 1837864  -
Host enter emergency mode after upgrading to latest build

If you have your root file system on a multipath device on your hosts you
should be aware that after upgrading from 4.4.1 to 4.4.5 you may get your
host entering emergency mode.

In order to prevent this be sure to upgrade oVirt Engine first, then on
your hosts:

   1.

   Remove the current lvm filter while still on 4.4.1, or in emergency mode
   (if rebooted).
   2.

   Reboot.
   3.

   Upgrade to 4.4.5 (redeploy in case of already being on 4.4.5).
   4.

   Run vdsm-tool config-lvm-filter to confirm there is a new filter in
   place.
   5.

   Only if not using oVirt Node:
   - run "dracut --force --add multipath” to rebuild initramfs with the
   correct filter configuration
   6.

   Reboot.

Documentation

   -

   If you want to try oVirt as quickly as possible, follow the instructions
   on the Download  page.
   -

   For complete installation, administration, and usage instructions, see
   the oVirt Documentation .
   -

   For upgrading from a previous version, see the oVirt Upgrade Guide
   .
   -

   For a general overview of oVirt, see About oVirt
   .

Important notes before you try it

Please note this is a pre-release build.

The oVirt Project makes no guarantees as to its suitability or usefulness.

This pre-release must not be used in production.
Installation instructions

For installation instructions and additional information please refer to:

https://ovirt.org/documentation/

This release is available now on x86_64 architecture for:

* Red Hat Enterprise Linux 8.3 or newer

* CentOS Linux (or similar) 8.3 or newer

This release supports Hypervisor Hosts on x86_64 and ppc64le architectures
for:

* Red Hat Enterprise Linux 8.3 or newer

* CentOS Linux (or similar) 8.3 or newer

* oVirt Node 4.4 based on CentOS Linux 8.3 (available for x86_64 only)

See the release notes [1] for installation instructions and a list of new
features and bugs fixed.

Notes:

- oVirt Appliance is already available for CentOS Linux 8

- oVirt Node NG is already available for CentOS Linux 8

- We found a few issues while testing on CentOS Stream so we are still
basing oVirt 4.4.5 Node and Appliance on CentOS Linux.

Additional Resources:

* Read more about the oVirt 4.4.5 release highlights:
http://www.ovirt.org/release/4.4.5/

* Get more oVirt project updates on Twitter: https://twitter.com/ovirt

* Check out the latest project news on the oVirt blog:
http://www.ovirt.org/blog/


[1] http://www.ovirt.org/release/4.4.5/

[2] http://resources.ovirt.org/pub/ovirt-4.4-pre/iso/

-- 

Lev Veyde

Senior Software Engineer, RHCE | RHCVA | MCITP

Red Hat Israel



l...@redhat.com | lve...@redhat.com

TRIED. TESTED. TRUSTED. 
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[ovirt-users] EL7 Host support in 4.4.x

[Vrgotic, Marko]

Hi oVirt,

After reviewing the https://access.redhat.com/articles/973163
I wonder is it possible to have a Host running EL7, in oVirt 4.4 to support 
ability to still run OSs like Win 2008R2, or is it a hard NO?

-
kind regards/met vriendelijke groeten

Marko Vrgotic
Sr. System Engineer @ System Administration

ActiveVideo
o: +31 (35) 6774131
m: +31 (65) 5734174
e: m.vrgo...@activevideo.com
w: www.activevideo.com

ActiveVideo Networks BV. Mediacentrum 3745 Joop van den Endeplein 1.1217 WJ 
Hilversum, The Netherlands. The information contained in this message may be 
legally privileged and confidential. It is intended to be read only by the 
individual or entity to whom it is addressed or by their designee. If the 
reader of this message is not the intended recipient, you are on notice that 
any distribution of this message, in any form, is strictly prohibited.  If you 
have received this message in error, please immediately notify the sender 
and/or ActiveVideo Networks, LLC by telephone at +1 408.931.9200 and delete or 
destroy any copy of this message.


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[ovirt-users] Re: Manager login error

[Gilson Schmidt]

Ok.

In oVirt Engine, list what's in the /etc/ovirt-engine/aaa folder.

[root@ovirt001 aaa]# pwd
/etc/ovirt-engine/aaa
[root@ovirt001 aaa]#
[root@ovirt001 aaa]# ls -la
total 20
drwxr-xr-x.  2 root  root   170 Dec  8 18:22 .
drwxr-xr-x. 18 root  root  4096 Nov 13 13:43 ..
-rw---.  1 ovirt ovirt  290 Oct 28 16:11 internal.properties
-rw-r--r--.  1 root  root  1226 Dec  8 11:21 domain-ad.com.br.jks
-rw---.  1 ovirt ovirt  540 Dec  8 18:22 domain-ad.com.br.properties
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[ovirt-users] Re: Manager login error

[Moses Musa]

found the environment, thus not sure how it was set. but it has been running 
without issues. have been taking backups. am purely new to this redhat 
virtualization, thus most of my maneuvers i check online for steps.
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[ovirt-users] Re: Manager login error

[Gilson Schmidt]

Hi.

I never had this problem, but we can help.
Did you set up SSO?
If so, do you have a backup of the oVirt Engine /etc/ovirt-engine/aaa folder?

You can verify that the [domain].properties file is correct and with the access 
key of the java keystore. 
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[ovirt-users] Create update and security plan

[Gilson Schmidt]

Hi

We have a large hypervisors park, and now we are starting to adopt oVirt.
And I need an update and security plan for oVirt Nodes.

I need to know:
  - What is the update cycle for oVirt?
  - How large companies treat the security of oVirt Node.
 What is the frequency of updates;
 Is an additional service enabled / installed on oVirt Node?
 Is SSH enabled maintained?
 What is the sysadmin access format? Currently on other hypervisors (Xen) 
using Vault, or we disable SSH on ESXi.
 How do large companies configure oVirt to comply with the needs passed on 
by the Security Team?

Tks very much.
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[ovirt-users] Manager login error

[Moses Mbugua]

have tried to resolve this error " Keystore was tampered with, or password was 
incorrect" but am not able. This has rendered my virtualization manager 
unusable. This means I can access one of my hosts which has vms l down. any one 
who has ever faced similar issues? i rarely access it thus mostly an update 
issue since i can't remember changing anything .redhat virtualization version 
4.2.8.9-0.1.el7ev. able to help? ping me we discuss
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[ovirt-users] Re: Gluster volume engine stuck in healing with 1 unsynched entry & HostedEngine paused

[souvaliotimaria]

I tried only the simple healing because I wasn't sure if I'd mess the gluster 
more than it already is. 
I will try latest-mtime in a couple of hours because the system is a production 
system and I have to do it after office hours. I will come back with an update.
Thank you very much for your help!
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[ovirt-users] What happens in loss of network scenarios?

[David White via Users]

I tested oVirt (4.3? I can't remember) last fall on a single host 
(hyperconverged).

Now, I'm getting ready to deploy to a 3 physical node (possibly 4) 
hyperconverged cluster, and I guess I'll go ahead and go with 4.4.
Although Red Hat's recent shift of CentOS 8 to the Stream model, as well as the 
announcement that RHV is going away makes me nervous. I really don't see any 
other virtualization software doing quite the same stuff as oVirt at the 
moment. 

One of my questions is around the back end out-of-band network for data 
replication.
What happens if all 3 servers are healthy and the normal network is fine for 
serving traffic to the VM consumers, but the switching network for data 
replication goes down? Is it possible to configure oVirt to "fail over" to the 
front-end network?I'm also wondering if its possible to do away with a switch 
all together, and just link the physical hosts together directly (like a 
cross-over cable) for the data replication.

I'm also wondering what would happen in the following scenario:

-   All 3 servers are healthy
-   The out-of-band data replication network is healthy
-   1 or 2 of the servers suddenly lost network connectivity on the front-end 
network

What then? Would everything just keep working, and network traffic be forced to 
go out the healthy interface(s) on the remaining hosts?

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[ovirt-users] Re: Cloud-init confusion

[Shantur Rathore]

Thanks Liran,

It clears up the confusion.

Regards,
Shantur

On Wed, Mar 3, 2021 at 1:04 PM Liran Rotenberg  wrote:

> Hi,
> Cloud-init is usually used only once to initialize the guest OS
> configuration.
> When using the normal Run, if it's the first time this VM goes up, the
> cloud-init will be included, otherwise it won't as it isn't supposed to be
> re-configured or being configured after the VM already ran.
> However, Run-Once bypasses this safety check and allows it, making the VM
> as a "fresh one".
> I hope it clears things up a bit.
> Liran.
>
> On Wed, Mar 3, 2021 at 12:46 PM Shantur Rathore 
> wrote:
>
>> Hi Users,
>>
>> I am new to oVirt and having some confusion with cloud-init.
>> I have a VM which supports Cloud Init and when I enable Cloud Init under
>> Initial boot settings of VM, the cloud-init config disk isn't attached to
>> the VM.
>> If I use Run-Once and enable Cloud-Init the config disk is attached to
>> the VM and works as expected.
>>
>> Is cloud-init only supposed to work with Run-Once or am I missing
>> something?
>>
>> Thanks in advance.
>> Shantur
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[ovirt-users] Template backing disks on different storage

[Shantur Rathore]

Hi Users,

I am evaluating oVirt coming from a VMware background.
I have a test cluster with 6 machines running oVirt Node providing
compute + gluster services.
There are 2 storage domains

1. Gluster backed
2. iSCSI SAN

I use iSCSI SAN for the templates (backing disks) and would like to use
Gluster storage domain for template instances.
In VMware I could create a linked clone on one storage linked to a template
on another.

Is this possible with oVirt? via GUI or API?

Thanks in advance,
Shantur
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