[ovirt-users] Ovirt 3:6 to 4:2 migration

[techieim]

Hello Team Ovirt,

We are running Ovirt3.8 version in our prod, we want to upgrade to 3.8 to
4.2.
At present we have 2 (hyp A & hyp B)physical host ovirt 3.8 is running with
self hosted engine with data domain and iso one cluster and data center.
What we were thing do this migration in following fashion.
Plan A.
1. Attach export domain present infra.
2. Take backup all of running vm as export.
3. Detach export domain
4.  Detach hyp B from cluster and data center
5. Install fresh ovirt 4.2 iso on hyp B
6. Install self hosted engine
7. Attach Data Domain
8. Attach Export Domain which was use in ovirt 3.8
9. Import all vm's from there to new ovirt 4.2
10. Once all the vm's got up and running poweroff hyp A
11. Install fresh ovirt 4.2 iso on hyp A and attach cluster.

Plan B.
1. Attach export domain present infra.
2. Take backup all of running vm as export.
3. Detach export domain
4.  Detach hyp B from cluster and data center
5. Install fresh ovirt 4.2 iso on hyp B
6. Install self hosted engine
7. Attach Data Domain
8. Export from ovirt 3.8 to ovirt 4.2
9. Once all the vm's got up and running poweroff hyp A
10. Install fresh ovirt 4.2 iso on hyp A and attach cluster.

Thank a ton in advance we may be wrong with above step help us to win this
migration.

Regards
Techieim
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[ovirt-users] Re: Upgrading HE and hosts; 4.1 to 4.2.4

[femi adegoke]

Here is the steps I follow:

First make sure you backup your hosted engine...then proceed as below:

on hosted engine console
# yum update -y

put host in global maintenance
# hosted-engine --set-maintenance --mode=global

run engine-setup on hosted engine

reboot hosted engine

# hosted-engine --vm-status
# hosted-engine --vm-start

turn off global maintenance
# hosted-engine --set-maintenance --mode=none

put each physical host (one at a time) in maintenance

upgrade physical host

reboot (maybe)

# hosted-engine --vm-status
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[ovirt-users] Upgrading HE and hosts; 4.1 to 4.2.4

[aduckers]

It looks like there are several different pages describing the update process 
and I’m not sure which ones in particular apply in this case.  I’ve got a 
cluster with 6 hosts, 3 of which can run the hosted engine.
Would this be the correct procedure? 
https://www.ovirt.org/documentation/how-to/hosted-engine/#upgrade-hosted-engine 


And for Step 2 in that procedure, would this cover it?

# yum install http://resources.ovirt.org/pub/yum-repo/ovirt-release42.rpm 

# yum update “ovirt-*-setup*”
# engine-setup

And for Step 4 in that procedure, can that be done in the GUI alone or does yum 
need to be run from the CLI?

Thanks


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[ovirt-users] Re: Corrupted Disk Images

[Oliver Riesener]

Hi Bryan,

i expect a hardware problem.

Have all your servers ECC ram ?

In the past I had a PC (without ECC RAM) and without ovirt,
which regularly produced a defective data block when transferring
an 8GB gzip file with rsync. The error position in file was randomly, but
the defective stored block on disc has always only the first 128 bytes 
scrambled.

You see, something like this can happen without any messages or anything like 
that.
I didn't investigate further whether the cause was the network card, the RAM or 
the drive path or the switch port. But it was clearly reproducible!

my 2 cent.

 
> Am 20.07.2018 um 15:38 schrieb Bryan Sockel :
> 
> Hi,
>  
> Over the past few weeks i have had a number of Windows VM Disk start showing 
> up as corrupted.  I Attempt to boot into recover mode and run the normal 
> recover tools (chkdsk, sfc /scannow, etc.) Unable to repair with status 50.
>  
> Looking through Ovirt, i do not see any thing in the logs.  VM is Running off 
> a gluster replica 3 volume.  The corruption does not seem to be isolated to 
> one specific gluster volume.  I have also seen corruption with an NFS Volume. 
>  Issue seemed to start after moving from a Centos 7 Install, to a Ovirt Node 
> image.  
>  
> I have mainly seen corruption with Windows 10 Images, but a couple of 
> 2003/2012 server OS's as well. 
>  
> Where would be the best place to start looking at why the VM HD's are getting 
> corrupted?
>  
>  
> 
> Thank You,
> 
> Bryan Sockel
> Systems Administrator
> o: 817-601-3222 ext: 233e: bryan.soc...@mdaemon.com
> 
> MDaemon Technologies 
> Simple Secure Email
> 
> Visit us on Facebook  | 
> LinkedIn  | 
> YouTube 
> 
> Sent using the MDaemon Messaging Server 
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[ovirt-users] Re: Cant create ISCSI data domain

[tehnic]

Hi Bernhard,

Perfect hint - domain is up and running now.

Thank you!

Regards, Robert
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[ovirt-users] Re: Cant create ISCSI data domain

[Bernhard Dick]

Hi Robert,

Am 20.07.2018 um 16:40 schrieb teh...@take3.ro:

[...]
Discovery of ISCSI target is working but after logging in to the target no LUNs 
are found or displayed, so i cant finish the procedure.

On the SPM i see an ISCSI session, and LUN 1 is attached as /dev/sdc.

The ISCSI system is a FreeNAS installation and im running ovirt 4.2.
are you running an hyperconverged gluster setup as base for your oVirt 
installation? Maybe you're running into the same problem I had last 
month, which can be found in the archive here:

https://lists.ovirt.org/archives/list/users@ovirt.org/thread/45IIDJUVOCNLBUEKH5LOHM2DK6BYD44D/#45IIDJUVOCNLBUEKH5LOHM2DK6BYD44D

That was due to a multipath blacklisting everything.

  Regards
Bernhard


Any suggestion how to solve this problem?

Regards, Robert

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[ovirt-users] Cant create ISCSI data domain

[tehnic]

Hello all,

i try to create a new data domain on ISCSI storage following this documentation:
https://www.ovirt.org/documentation/admin-guide/chap-Storage/

Discovery of ISCSI target is working but after logging in to the target no LUNs 
are found or displayed, so i cant finish the procedure.

On the SPM i see an ISCSI session, and LUN 1 is attached as /dev/sdc.

The ISCSI system is a FreeNAS installation and im running ovirt 4.2.

Any suggestion how to solve this problem?

Regards, Robert
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[ovirt-users] Ovf from vm.initialization.configuration.data

[Carlos Rodrigues]

Hello,

I'm working on development of script to backup and restore ovirt VMs.

I saw some examples from sdk (https://github.com/oVirt/ovirt-engine-sdk
/tree/master/sdk/examples) to backup and restore VMs, but for backup
ovf VM i'm using the vm.initialization.configuration.data and this ovf
it keeps the snapshots information and don't have disks ids reference.

I would like to known if we have some method to get the ovf with disks
ids?

Regards,

-- 
Carlos Rodrigues

Engenheiro de Software Sénior

Eurotux Informática, S.A. | www.eurotux.com
(t) +351 253 680 300 (m) +351 911 926 110
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[ovirt-users] Corrupted Disk Images

[Bryan Sockel]

Hi,

Over the past few weeks i have had a number of Windows VM Disk start showing 
up as corrupted.  I Attempt to boot into recover mode and run the normal 
recover tools (chkdsk, sfc /scannow, etc.) Unable to repair with status 50.

Looking through Ovirt, i do not see any thing in the logs.  VM is Running 
off a gluster replica 3 volume.  The corruption does not seem to be isolated 
to one specific gluster volume.  I have also seen corruption with an NFS 
Volume.  Issue seemed to start after moving from a Centos 7 Install, to a 
Ovirt Node image.  

I have mainly seen corruption with Windows 10 Images, but a couple of 
2003/2012 server OS's as well. 

Where would be the best place to start looking at why the VM HD's are 
getting corrupted?



Thank You,

Bryan Sockel
Systems Administrator
o: 817-601-3222 ext: 233e: bryan.soc...@mdaemon.com

MDaemon Technologies
Simple Secure Email

Visit us on Facebook | LinkedIn | YouTube

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[ovirt-users] Re: metrics

[suporte]

Hi, 

Still the same error after installing ansible 2.5.5 and repo: 

1. Hosts: localhost 
Play: Determine openshift_version to configure on first master 
Task: openshift_version : fail 
Message: Package 'atomic-openshift-3.9*' not found 

# yum search atomic-openshift 
... 
 N/S matched: atomic-openshift 
= 
atomic-openshift-utils.noarch : Atomic OpenShift Utilities 

# rpm -q atomic-openshift-utils 
atomic-openshift-utils-3.9.32-1.git.1.970d147.el7.noarch 

# rpm -q ansible 
ansible-2.5.5-1.el7.noarch 

openshift-ansible-3.9.32-1.git.1.970d147.el7.noarch 

# cat /etc/yum.repos.d/centos7-viaq.repo 
[centos-openshift-origin] 
name=CentOS OpenShift Origin 
baseurl=http://mirror.centos.org/centos/7/paas/x86_64/openshift-origin/ 
enabled=1 
gpgcheck=1 
gpgkey=https://tdawson.fedorapeople.org/centos/RPM-GPG-KEY-CentOS-SIG-PaaS 

[centos-openshift-common-candidate] 
name=CentOS OpenShift Common Candidate 
baseurl=https://cbs.centos.org/repos/paas7-openshift-common-candidate/x86_64/os/
 
enabled=0 
gpgcheck=0 

[centos-openshift-origin14-candidate] 
name=CentOS OpenShift Origin14 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin14-candidate/x86_64/os/
 
enabled=1 
gpgcheck=0 
gpgkey=https://tdawson.fedorapeople.org/centos/RPM-GPG-KEY-CentOS-SIG-PaaS 

[centos-openshift-origin15-candidate] 
name=CentOS OpenShift Origin15 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin15-candidate/x86_64/os/
 
enabled=1 
gpgcheck=0 
gpgkey=https://tdawson.fedorapeople.org/centos/RPM-GPG-KEY-CentOS-SIG-PaaS 

[centos-openshift-origin36-candidate] 
name=CentOS OpenShift Origin36 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin36-candidate/x86_64/os
 
enabled=1 
gpgcheck=0 

[centos-openshift-origin37-candidate] 
name=CentOS OpenShift Origin37 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin37-candidate/x86_64/os
 
enabled=1 
gpgcheck=0 

[centos-openshift-origin38-candidate] 
name=CentOS OpenShift Origin38 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin38-candidate/x86_64/os
 
enabled=1 
gpgcheck=0 

[centos-openshift-origin39-candidate] 
name=CentOS OpenShift Origin39 Candidate 
baseurl=http://cbs.centos.org/repos/paas7-openshift-origin39-candidate/x86_64/os
 
enabled=1 
gpgcheck=0 


De: supo...@logicworks.pt 
Para: "Shirly Radco"  
Cc: "Rich Megginson" , "users"  
Enviadas: Quinta-feira, 19 De Julho de 2018 16:15:12 
Assunto: [ovirt-users] Re: metrics 

Sorry, wrong server 



# yum search atomic-openshift 
... 
=== N/S matched: atomic-openshift 
 
atomic-openshift-utils.noarch : Atomic OpenShift Utilities 


# yum repolist 
repo id repo name status 
base/7/x86_64 CentOS-7 - Base 9911 
centos-gluster312/7/x86_64 CentOS-7 - Gluster 3.12 214 
centos-openshift-origin CentOS OpenShift Origin 185 
centos-opstools-release/7/x86_64 CentOS-7 - OpsTools - release 623 
centos-ovirt42/7/x86_64 CentOS-7 - oVirt 4.2 446 
centos-qemu-ev/7/x86_64 CentOS-7 - QEMU EV 59 
extras/7/x86_64 CentOS-7 - Extras 363 
origin-repo Origin RPMs 12 
updates/7/x86_64 CentOS-7 - Updates 970 


De: supo...@logicworks.pt 
Para: "Shirly Radco"  
Cc: "Rich Megginson" , "users"  
Enviadas: Quinta-feira, 19 De Julho de 2018 16:09:48 
Assunto: Re: [ovirt-users] metrics 

# yum search atomic-openshift 
Warning: No matches found for: atomic-openshift 
No matches found 

# yum repolist 
repo id repo name status 
!base/7/x86_64 CentOS-7 - Base 9911 
!centos-sclo-rh-release/x86_64 CentOS-7 - SCLo rh 7514 
!extras/7/x86_64 CentOS-7 - Extras 313 
!ovirt-4.2/7 Latest oVirt 4.2 Release 1670+101 
!ovirt-4.2-centos-gluster312/x86_64 CentOS-7 - Gluster 3.12 189 
!ovirt-4.2-centos-opstools/x86_64 CentOS-7 - OpsTools - release 493 
!ovirt-4.2-centos-ovirt42/x86_64 CentOS-7 - oVirt 4.2 379 
!ovirt-4.2-centos-qemu-ev/x86_64 CentOS-7 - QEMU EV 55 
!ovirt-4.2-epel/x86_64 Extra Packages for Enterprise Li 12585+12335 
!ovirt-4.2-virtio-win-latest virtio-win builds roughly matchi 37 
!updates/7/x86_64 CentOS-7 - Updates 695 




De: "Shirly Radco"  
Para: "Rich Megginson"  
Cc: supo...@logicworks.pt, "users"  
Enviadas: Quinta-feira, 19 De Julho de 2018 16:02:52 
Assunto: Re: [ovirt-users] metrics 

Also, I believe that you need for now to install ansible 2.5.5 or 2.5.6 due to 
OpenShift bug. 

-- 


SHIRLY RADCO 

BI SENIOR SOFTWARE ENGINEER 

Red Hat Israel 


TRIED. TESTED. TRUSTED. 

On Thu, Jul 19, 2018 at 5:37 PM, Rich Megginson < rmegg...@redhat.com > wrote: 


do you have 
http://cbs.centos.org/repos/paas7-openshift-origin39-candidate/x86_64/os/Packages/
 as one of your yum repos? 

What does "yum search atomic-openshift" show? 

On 07/19/2018 08:06 AM, supo...@logicworks.pt wrote: 

BQ_BEGIN
Hi, 

I'm still facing this issue 

Still this error: 
1. Hosts: localhost 
Play: Determine openshift_version to configure on first master 
Task: openshift_version :

[ovirt-users] Re: Failed to Activated Host

[carl langlois]

Hi,

Just re-probing (peer probe) all missing host from the ovhost3 host this
the Job, Now i can continue with the upgrade.
Thanks again for your help this is such a nice peace of software.

On Fri, Jul 20, 2018 at 6:06 AM, carl langlois 
wrote:

> Yes host3 is hosting the arbiter bricks. Does this make any differrence?
> All host ares part of the same cluster in Ovirt. But only 3 of them are
> part a the gluster pool.
> I understand that all hosts will be aprt of the same gluster cluster.
>
> Now i do i fix this situation?. It seem that i cannot add the missings
> hosts in the gluster cluster. Not sure since when they are not part of the
> gluster cluster or if they where ever part of the gluster cluster
> ..probably a human error
> Any suggestions?
>
> Thanks
>
> On Fri, Jul 20, 2018 at 1:29 AM, Sahina Bose  wrote:
>
>>
>>
>> On Thu, Jul 19, 2018 at 10:37 PM, carl langlois 
>> wrote:
>>
>>> Hi
>>>
>>> Today i had plan to start upgrading my installation to the latest 4.2.
>>> As i was already on a 4.2.x version i have figured it will be easy ..
>>> well.guess what i have having trouble re-activating one of the freshly
>>> upgraded host. So here is the resume.
>>>
>>> My setup have 3 hosts that are also part of a gluster pool. Those are
>>> the original host that was use to setup the HA engine with glusterfs. One
>>> of the 3 host is only used for arbiter and can also run the engine. But
>>> nothing else can run on it because it is a fairly small machine.
>>>
>>> I have also 6 others hosts for running vms that are not part of the
>>> gluster pool.
>>>
>>> So first thing i did to upgrade is set the global maintenance. Update
>>> the Engine/restart the engine and remove global maintenance.. that went
>>> without a glitch.
>>>
>>> Next i choose the arbiter for the first machine to upgrade. Then set the
>>> machine to maintenance run the upgrade and reboot the host. That went also
>>> without a glicth.
>>>
>>> Now here is the glitchy part. When i try to reactivate the host i got a
>>> strange error with a gluster peer command that failed on a host that is not
>>> in the gluster peer list.
>>>
>>> Here is the two errors i had.
>>>
>>> *"Gluster command [gluster peer probe ovhost3] failed on server
>>> sfmo5002ov74."*
>>> *"Add Host failed error: ovhost3 is either already part of another
>>> cluster of having volumes configured return code: 3"*
>>>
>>> One thing i do not understand is the sfmo5002ov74 is not part of the
>>> gluster pool. It does not provide any bricks to the system.
>>>
>>>
>>>
>> Is ovhost3 - the host hosting arbiter bricks?
>> What about *sfmo5002ov74* - is this host part of the same cluster in
>> oVirt as ovhost3.
>> In oVirt cluster, if you have turned on gluster service for the cluster,
>> all hosts will be part of the same gluster cluster, whether they have
>> bricks or not
>>
>> Now i am not sure what to look for. I have stop the upgrade process until
>>> i figure out the issue.
>>>
>>> Any hints would be appreciated.
>>>
>>> Thanks
>>> Carl
>>>
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>>>
>>
>
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[ovirt-users] Re: Failed to Activated Host

[carl langlois]

Yes host3 is hosting the arbiter bricks. Does this make any differrence?
All host ares part of the same cluster in Ovirt. But only 3 of them are
part a the gluster pool.
I understand that all hosts will be aprt of the same gluster cluster.

Now i do i fix this situation?. It seem that i cannot add the missings
hosts in the gluster cluster. Not sure since when they are not part of the
gluster cluster or if they where ever part of the gluster cluster
..probably a human error
Any suggestions?

Thanks

On Fri, Jul 20, 2018 at 1:29 AM, Sahina Bose  wrote:

>
>
> On Thu, Jul 19, 2018 at 10:37 PM, carl langlois 
> wrote:
>
>> Hi
>>
>> Today i had plan to start upgrading my installation to the latest 4.2. As
>> i was already on a 4.2.x version i have figured it will be easy ..
>> well.guess what i have having trouble re-activating one of the freshly
>> upgraded host. So here is the resume.
>>
>> My setup have 3 hosts that are also part of a gluster pool. Those are the
>> original host that was use to setup the HA engine with glusterfs. One of
>> the 3 host is only used for arbiter and can also run the engine. But
>> nothing else can run on it because it is a fairly small machine.
>>
>> I have also 6 others hosts for running vms that are not part of the
>> gluster pool.
>>
>> So first thing i did to upgrade is set the global maintenance. Update the
>> Engine/restart the engine and remove global maintenance.. that went without
>> a glitch.
>>
>> Next i choose the arbiter for the first machine to upgrade. Then set the
>> machine to maintenance run the upgrade and reboot the host. That went also
>> without a glicth.
>>
>> Now here is the glitchy part. When i try to reactivate the host i got a
>> strange error with a gluster peer command that failed on a host that is not
>> in the gluster peer list.
>>
>> Here is the two errors i had.
>>
>> *"Gluster command [gluster peer probe ovhost3] failed on server
>> sfmo5002ov74."*
>> *"Add Host failed error: ovhost3 is either already part of another
>> cluster of having volumes configured return code: 3"*
>>
>> One thing i do not understand is the sfmo5002ov74 is not part of the
>> gluster pool. It does not provide any bricks to the system.
>>
>>
>>
> Is ovhost3 - the host hosting arbiter bricks?
> What about *sfmo5002ov74* - is this host part of the same cluster in
> oVirt as ovhost3.
> In oVirt cluster, if you have turned on gluster service for the cluster,
> all hosts will be part of the same gluster cluster, whether they have
> bricks or not
>
> Now i am not sure what to look for. I have stop the upgrade process until
>> i figure out the issue.
>>
>> Any hints would be appreciated.
>>
>> Thanks
>> Carl
>>
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>>
>>
>
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[ovirt-users] Re: More USB device redirection

[Arik Hadas]

On Fri, Jul 20, 2018 at 5:28 AM  wrote:

> We have more USB devices redir (There are 8)，But oVirt supports only 6.
> How should I configure it.
>
> /etc/engine-config/engine-config.properties
> NumberOfUSBSlots.validValues=0..6
>
> This 0..6 modify 0..8
>
> engine-config -s NumberOfUSBSlots=8
> engine-config -g NumberOfUSBSlots
> NumberOfUSBSlots: 8 version: general
>
> But No entry into force
> Should I do？
>

To apply this change you'll need to restart the engine, then disable the
USB support for that VM, and then enable the USB support again.


> Thanks
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