from:"Vinícius Ferrão"

[ovirt-users] Re: [Non-DoD Source] Re: NVIDIA vGPU driver for Ovirt 4.5.4

2024-01-18 Thread Vinícius Ferrão via Users

Yes, and it’s expensive.

In our case we just use PCI-E Passthrough.


Sent from my iPhone

On 18 Jan 2024, at 12:50, samuel@horebdata.cn wrote:


Great.

Another related question:  Is is true that one has to buy Nivida  vGPU license 
in addition to the GPU hardware？


Do Right Thing (做正确的事) / Pursue Excellence (追求卓越) / Help Others Succeed (成就他人)

From: Silveira, Michael A CTR USN NAVSTA NEWPORT RI (USA) via 
Users
Date: 2024-01-18 12:48
To: gianluca.amato...@gmail.com
CC: users@ovirt.org
Subject: [ovirt-users] Re: [Non-DoD Source] Re: NVIDIA vGPU driver for Ovirt 
4.5.4
Hello,

I would need to virtualize it using GRID to be used by multiple VMs.  I ended 
up upgrading the kernel to 4.18.0-477.10.1.el8_8.x86_64 and was able to install 
the 16.2 NVIDIA driver for RHEL 8.8 and that works.

V/r,
Mike

From: Gianluca Amato 
Sent: Thursday, January 18, 2024 5:06 AM
To: Silveira, Michael A CTR USN NAVSTA NEWPORT RI (USA) 

Cc: users@ovirt.org
Subject: [Non-DoD Source] Re: [ovirt-users] NVIDIA vGPU driver for Ovirt 4.5.4

Do you want to virtualize the Tesla V100 or are just assigning the GPU to a 
single VM via PCI passtrough ?

--gianluca

On Thu, Jan 18, 2024 at 9:23 AM michael.a.silveira3.ctr--- via Users 
mailto:users@ovirt.org>> wrote:
Hello,

Does anyone know which, if any, NVIDIA GRID driver supports Ovirt 4.5.4 on 
Ovirt-node (kernel 4.18.0-408.el8.x86_64)?  I've recently upgraded to Ovirt 4.5 
and can't find a NVIDIA GRID driver that will connect to my Tesla v100 on the 
new kernel.  nvidia-smi returns the following no matter what driver I install:

NVIDIA-SMI has failed because it couldn't communicate with the NVIDIA driver.  
Make sure that the latest NVIDIA driver is installed and running.
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[ovirt-users] GPU Passthrough issues with oVirt 4.5

2023-06-30 Thread Vinícius Ferrão via Users

Hello, does anyone is having issues with device passthrough on oVirt 4.5?

I can passthrough the devices without issue to a given VM, but inside the VM it 
fails to recognize all the devices.

In my case I’ve added 4x GPUs to a VM, but only one show up, and there’s the 
following errors inside the VM:

[   23.006655] nvidia :0a:00.0: enabling device ( -> 0002)
[   23.008026] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR1 is 0M @ 0x0 (PCI::0a:00.0)
[   23.008035] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR2 is 0M @ 0x0 (PCI::0a:00.0)
[   23.008040] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR3 is 0M @ 0x0 (PCI::0a:00.0)
[   23.008045] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR4 is 0M @ 0x0 (PCI::0a:00.0)
[   23.008049] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR5 is 0M @ 0x0 (PCI::0a:00.0)
[   23.012339] NVRM: The NVIDIA GPU :0a:00.0 (PCI ID: 10de:1db1)
   NVRM: installed in this system is not supported by the
   NVRM: NVIDIA 535.54.03 driver release.
   NVRM: Please see 'Appendix A - Supported NVIDIA GPU Products'
   NVRM: in this release's README, available on the operating system
   NVRM: specific graphics driver download page at www.nvidia.com.
[   23.016175] nvidia: probe of :0a:00.0 failed with error -1
[   23.016838] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR0 is 0M @ 0x0 (PCI::0b:00.0)
[   23.016842] nvidia: probe of :0b:00.0 failed with error -1
[   23.017211] NVRM: This PCI I/O region assigned to your NVIDIA device is 
invalid:
   NVRM: BAR0 is 0M @ 0x0 (PCI::0c:00.0)
[   23.017215] nvidia: probe of :0c:00.0 failed with error -1
[   23.017248] NVRM: The NVIDIA probe routine failed for 3 device(s).
[   23.214409] NVRM: loading NVIDIA UNIX x86_64 Kernel Module  535.54.03  Tue 
Jun  6 22:20:39 UTC 2023
[   23.485704] [drm] [nvidia-drm] [GPU ID 0x0900] Loading driver
[   23.485708] [drm] Initialized nvidia-drm 0.0.0 20160202 for :09:00.0 on 
minor 1

On the host this shows up on dmesg, but seems right:

[  709.572845] vfio-pci :1a:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258
[  709.572877] vfio-pci :1a:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[  709.572883] vfio-pci :1a:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0
[  710.660813] vfio-pci :1d:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258
[  710.660845] vfio-pci :1d:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[  710.660851] vfio-pci :1d:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0
[  711.748760] vfio-pci :1e:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258
[  711.748791] vfio-pci :1e:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[  711.748797] vfio-pci :1e:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0
[  712.836687] vfio-pci :1c:00.0: vfio_ecap_init: hiding ecap 0x1e@0x258
[  712.836718] vfio-pci :1c:00.0: vfio_ecap_init: hiding ecap 0x19@0x900
[  712.836725] vfio-pci :1c:00.0: vfio_ecap_init: hiding ecap 0x23@0xac0


Thanks.

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[ovirt-users] Re: Future of ovirt - end-of-life RHV

2023-04-06 Thread Vinícius Ferrão via Users

Sandro, is there any proposed migration path from RHV to oVirt that didn’t 
envolve reinstalling everything and restoring the engine with a backup?

Thank you.

Sent from my iPhone

On 6 Apr 2023, at 03:54, Sandro Bonazzola  wrote:




Il giorno gio 6 apr 2023 alle ore 06:56 Margit Meyer 
mailto:m...@htwsaar.de>> ha scritto:
What about the future of ovirt when RHV comes to end-of-life?

I presented the future of oVirt here: 
https://blogs.ovirt.org/2022/02/future-of-ovirt-february-2022/
The overall situation didn't change over the past year.

Is there a chance for further usage?

Yes

RedHat OpenShift will not be an option for us


Just in case, there's a corresponding community project, OKD: 
https://www.okd.io/
which provides Virtualization support: 
https://docs.okd.io/latest/virt/about-virt.html
But nothing prevents you to continue using oVirt as long as the community keeps 
maintaining it.

--

Sandro Bonazzola

MANAGER, SOFTWARE ENGINEERING - Red Hat In-Vehicle Operating System

Red Hat EMEA

sbona...@redhat.com

[https://static.redhat.com/libs/redhat/brand-assets/2/corp/logo--200.png]
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] Re: Is it possible to auto-start VMs on single LocalStorage host without the engine?

2022-11-25 Thread Vinícius Ferrão via Users

It’s not recommended but you can put hard coded entries on /etc/hosts.

It used to work in the past (4 years ago), but I never relied on this recently.

> On 25 Nov 2022, at 07:51, ernest.beinr...@axonpro.sk wrote:
> 
> I currently use KVM/virsh for my DNS. I would like it to ovirt, but I need 
> DNS started for the engine to work. So I need to start the DNS vm before the 
> engine. Is that possible with ovirt? I was thinking I could use the same 
> mechanism as hosted engine, as that would autostart.
> 
> In my current KVM setup I needed only to symlink /etc/libvirtd/qemu/dns.xml 
> to /etc/libvirtd/qemu/autostart/ to get it to run. 
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[ovirt-users] Re: Not able to login as admin after successfull deployment of hosted engine (OVirt 4.5.1)

2022-07-15 Thread Vinícius Ferrão via Users

admin@ovirt should be the correct way if you’re using Keycloak.

Sent from my iPhone

On 15 Jul 2022, at 16:49, Ralf Schenk  wrote:



Hello list,

"admin@localhost" did the trick That was frustrating but searching through 
the list helped !

Bye

Am 15.07.2022 um 21:26 schrieb Ralf Schenk:

Hello List,

I successfully deployed a fresh hosted-engine, but I'm not able to login to 
Administration-Portal. I'm perferctly sure about the password I had to type 
multiple times

I'm running ovirt-node-ng-4.5.1-0.20220622.0 and deployed engine via cli-based 
ovirt-hosted-engine-setup.

Neither "admin" nor "admin@internal" are working (A profile cannot be choosen 
as in earlier versions).

I can login to the monitoring part (grafana !) and also Cockpit but not 
Administration-Portal nor VM-Portal.

I can ssh into the engine and lookup the user-database which has the user.

root@engine02 ~]# ovirt-aaa-jdbc-tool query --what=user
Picked up JAVA_TOOL_OPTIONS: -Dcom.redhat.fips=false
-- User admin(2be16cf0-5eb7-4b0e-923e-7bdc7bc2aa6f) --
Namespace: *
Name: admin
ID: 2be16cf0-5eb7-4b0e-923e-7bdc7bc2aa6f
Display Name:
Email: root@localhost
First Name: admin
Last Name:
Department:
Title:
Description:
Account Disabled: false
Account Locked: false
Account Unlocked At: 1970-01-01 00:00:00Z
Account Valid From: 2022-07-15 18:23:47Z
Account Valid To: -07-15 18:23:47Z
Account Without Password: false
Last successful Login At: 1970-01-01 00:00:00Z
Last unsuccessful Login At: 1970-01-01 00:00:00Z
Password Valid To: -05-28 18:23:49Z

However no groups by default ???

[root@engine02 ~]# ovirt-aaa-jdbc-tool query --what=group
Picked up JAVA_TOOL_OPTIONS: -Dcom.redhat.fips=false

Any solution ? I don't want to repeat the hosted-engine deployment a fourth 
time after I mastered all problems with NFS permissions, GUI deployment not 
accepting my Bond which is perfectly ok called "bond0" etc

Bye

--
[thbAZSkoJSkgke42.png]
Ralf Schenk
fon:02405 / 40 83 70
mail:   r...@databay.de 
web:www.databay.de 
Databay AG
Jens-Otto-Krag-Str. 11
52146 Würselen


Sitz/Amtsgericht Aachen • HRB:8437 • USt-IdNr.: DE 210844202
Vorstand: Ralf Schenk, Dipl.-Ing. Jens Conze, Aresch Yavari, Dipl.Kfm. Philipp 
Hermanns
Aufsichtsratsvorsitzender: Dr. Jan Scholzen



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Databay AG
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52146 Würselen


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[ovirt-users] Re: Seeking best performance on oVirt cluster

2022-07-14 Thread Vinícius Ferrão via Users

Hi David, as an advise. You should not set sync=disabled on TrueNAS. Doing that 
you’re considering every write as async, and if you have a powerless you’ll 
have data lost.

There are some conservatives that state that you should do the opposite: 
sync=always, which bogs down the performance, but I particularly use 
sync=standard.

I think you should look at the real issue on your pool. Is it with more than 
80% occupation? Do you have an SLOG device (to offload the sync writes, so you 
can continue using sync=standard)?

Another issue is that RAID-Z is not really recommended for latency scenarios 
(VMs). You should be using stripe of mirrors instead. RAID-Z2 would be a choice 
if you have lots of RAM and L2ARC devices to compensate the slow disk access. 
ZFS is not a performance beast, security is the first option in this filesystem.

Regards.

PS: I run FreeNAS (and now TrueNAS) since the 0.7 days and with VM storage 
since 8.2. It’s good if you know what you’re doing.

On 14 Jul 2022, at 12:26, David Johnson 
mailto:djohn...@maxistechnology.com>> wrote:

Thank you Nir, this is good information.


On Thu, Jul 14, 2022 at 9:34 AM Nir Soffer 
mailto:nsof...@redhat.com>> wrote:
On Tue, Jul 12, 2022 at 9:02 AM David Johnson 
mailto:djohn...@maxistechnology.com>> wrote:
Good morning all,

I am trying to get the best performance out of my cluster possible,

Here are the details of what I have now:

Ovirt version: 4.4.10.7-1.el8
Bare metal for the ovirt engine
two hosts
TrueNAS cluster storage
   1 NFS share
   3 vdevs, 6 drives in raidz2 in each vdev
   2 nvme drives for silog
Storage network is 10 GBit all static IP addresses

Tonight, I built a new VM from a template.  It had 5 attached disks totalling 
100 GB.  It took 30 minutes to deploy the new VM from the template.

Global utilization was 9%.
The SPM has 50% of its memory free and never showed more than 12% network 
utilization

62 out of 65 TB are available on the newly created NFS backing store (no 
fragmentation). The TureNAS system is probably overprovisioned for our use.

There were peak throughputs of up to 4 GBytes/second (on a 10 GBit network), 
but overall throughput on the NAS and the network were low.
ARC hits were 95 to 100%
L2 hits were 0 to 70%

Here's the NFS usage stats:


I believe the first peak is where the silog buffered the initial burst of 
instructions, followed by sustained IO as the VM volumes were built in 
parallel, and then finally tapering off to the one 50 GB volume that took 40 
minutes to copy.

The indications of the NFS stats graph are that the network performance is just 
fine.

Here are the disk IO stats covering the same time frame, plus a bit before to 
show a spike IO:


The spike at 2250 (10 minutes before I started building my VM) shows that the 
spinners actually hit write speed of almost 20 MBytes per second briefly, then 
settled in at a sustained 3 to 4 MBytes per second.  The silog absorbs several 
spikes, but remains mostly idle, with activity measured in kilobytes per second.

The HGST HUS726060AL5210 drives boast a spike throughput of 12 GB/S, and 
sustained throughput of 227 Mbps.

--
Now to the questions:
1. Am I asking the on the right list? Does this look like something where 
tuning ovirt might make a difference, or is this more likely a configuration 
issue with my storage appliances?

2. Am I expecting too much?  Is this well within the bounds of acceptable 
(expected) performance?

3. How would I go about identifying the bottleneck, should I need to dig deeper?

One thing that can be interesting to try to to apply this patch for vdsm:

diff --git a/lib/vdsm/storage/sd.py b/lib/vdsm/storage/sd.py
index 36c393b5a..9cb7486c0 100644
--- a/lib/vdsm/storage/sd.py
+++ b/lib/vdsm/storage/sd.py
@@ -401,7 +401,7 @@ class StorageDomainManifest(object):
 Unordered writes improve copy performance but are recommended only for
 preallocated devices and raw format.
 """
-return format == sc.RAW_FORMAT and not self.supportsSparseness
+return True

 @property
 def oop(self):

This enables unordered writes for qemu-img convert, which can be up to 6 times 
faster on
block storage. When we tested it with file storage it did not give lot of 
improvement,  but this
was tested a long time ago, and since then we use unordered writes everywhere 
else in the
system.

Another thing to try is NFS 4.2, which can be much faster when coping images, 
since it supports
sparseness. But I don't think TrueNAS supports NFS 4.2 yet (in 12.x they did 
not).

If you must work with older NFS, using qcow2 disks will be much faster when 
copying disks
(e.g. create vm from template). The way to get qcow2 disks is to check "enable 
incremental backup"
when creating disks.

Nir
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[ovirt-users] Re: DO I HAVE TO PAY MONEY OR DO PEOPLE PAY MONEY TO GET LITTLE INFORMATION?

2022-07-12 Thread Vinícius Ferrão via Users

Did you tried our suggestions abiolaemma01?

Regards.

> On 8 Jul 2022, at 14:35, abiolaemm...@gmail.com wrote:
> 
> Good day Vinícius Ferrão,
>Appreciated your rapid reply. For more than 6weeks now, I have been at war 
> with oVirt installation and how to deploy it in Oracle Linux Server 8.6 
> Oracle Linux Server 8.6.  I have watched all Youtube videos and on how to 
> solve this problems but cant still have a SOLUTION, all i got is ERRORS.
> I need to deploy oVirt but all i got are errors as shown below in the screen 
> shot and also the ovirt-imageio is another issue on how to upload images iso 
> files. 
> 
> I cant attached screenshot files here, so i have sent you an email with the 
> screenshot of the errors.
> 
> Please I will be the most grateful if you can help me find a solution to this 
> problem.
> 
> Appreciated
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[ovirt-users] Re: Upgrade from 4.2 directly to 4.5

2022-07-08 Thread Vinícius Ferrão via Users

Hi Sandro I’m writing back to thank you for the support and give a feedback.

I was unable to properly restore the engine from 4.3 to 4.5 (or even 4.4);
there was some errors during the network phase and I think that was because
ovirtmgmt was running on top a bond0 and in the 4.2 days, when the engine was
originally deployed that was broken and unsupported.

After 4 or 5 tries I ended up reconfiguring the entire engine in a brand new
one. It was faster… there was a lot of errors on
OVESETUP_OVN/ovirtProviderOvnSecret and I gave up.

Thank you.

On 30 Jun 2022, at 03:32, Sandro Bonazzola
mailto:sbona...@redhat.com>> wrote:

Il giorno gio 30 giu 2022 alle ore 05:56 Vinícius Ferrão
mailto:fer...@versatushpc.com.br>> ha scritto:

On 29 Jun 2022, at 02:43, Sandro Bonazzola
mailto:sbona...@redhat.com>> wrote:

Il giorno mar 28 giu 2022 alle ore 17:52 Vinícius Ferrão via Users
mailto:users@ovirt.org>> ha scritto:
Hello, I would like to know if I can do an oVirt upgrade directly from 4.2 to
4.5.

I don’t have a free host to upgrade the oVirt Node, so I was hoping that would
be possible to fire up a new engine (with restore-backup) on the old oVirt
Nodes and later on upgrade the hosts.

Is this possible?

Please upgrade the engine to 4.3 and take a backup.
Direct upgrade from 4.3 to 4.5 should work fine but direct upgrade from 4.2
backup is not working.
As for the host, oVirt Node 4.5 is supposed to be compatible with ovirt engine
>= 4.2.

Thank you Sandro. I’m following the instructions over here:
https://www.ovirt.org/documentation/upgrade_guide/#Upgrading_the_Manager_to_4-3_4-2_local_db
https://www.ovirt.org/documentation/upgrade_guide/#Upgrading_Remote_Databases_from_PG95_to_PG10_4-2_remote_db

I had to upgrade Postgres to version 10, on the SelfHosted Engine to proceed.
Just followed the “remote database procedure” even without a remote DB.

I just have one more question: to do the jump from 4.3 to 4.5 on the engine the
only way is restoring a backup right? Since 4.5 is based on EL8. I cannot do
the yum update ovirt\*setup\* method right?

Right

Is there other way?

Also during the host upgrades, I understand that I can run oVirt Node 4.5 with
Engine 4.2 (and now 4.3), which is awesome. But is there a path where I can
upgrade the engine to the latest version and them move the hosts?

You can move your hosted engine to bare metal and then upgrade the hosts. If
you have hosted engine, the installation from backup requires 1 host on 4.5
with the corresponding ovirt engine appliance.

I have those questions because I can’t see where or when the OS upgrade will be
done on the SHE during 4.3 -> 4.5.

When installing the first 4.5/el8 host you can restore backup into a newly
deployed hosted engine 4.5/el8 so both engine and first host get upgraded at
the same step.

Thank you.

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[ovirt-users] Re: DO I HAVE TO PAY MONEY OR DO PEOPLE PAY MONEY TO GET LITTLE INFORMATION?

2022-07-08 Thread Vinícius Ferrão via Users

Hello.

I would not recommending using OL as a base system, this is mainly because OL
has a special fork of oVirt that fits better, which is Oracle OLKVM:
https://www.oracle.com/virtualization/

With that being said, the way forward is to run oVirt Node 4.5.1 (with EL8
Stream; EL9 is still experimental) and a self hosted engine.

Can you use this instead of OL or do you have a custom OL requirement? I’m
saying that because I do run Oracle Linux in some places and I know that for
KVM it’s not 1:1 compatible with oVirt.

I didn’t fully understand your other messages, but I see you tried to upload an
.ISO image and it failed. That’s some work that must be done for ISO upload
works correctly, and to be honest I never cared for it, I just use the legacy
ISO domain instead and manually copy the ISO files to my NFS server. This may
solve the issue for you.

Regards.

On 8 Jul 2022, at 14:35, abiolaemm...@gmail.com<mailto:abiolaemm...@gmail.com>
wrote:

Good day Vinícius Ferrão,
Appreciated your rapid reply. For more than 6weeks now, I have been at war
with oVirt installation and how to deploy it in Oracle Linux Server 8.6 Oracle
Linux Server 8.6. I have watched all Youtube videos and on how to solve this
problems but cant still have a SOLUTION, all i got is ERRORS.
I need to deploy oVirt but all i got are errors as shown below in the screen
shot and also the ovirt-imageio is another issue on how to upload images iso
files.

I cant attached screenshot files here, so i have sent you an email with the
screenshot of the errors.

Please I will be the most grateful if you can help me find a solution to this
problem.

Appreciated
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[ovirt-users] Re: DO I HAVE TO PAY MONEY OR DO PEOPLE PAY MONEY TO GET LITTLE INFORMATION?

2022-07-08 Thread Vinícius Ferrão via Users

What info do you need?

> On 8 Jul 2022, at 12:35, abiolaemm...@gmail.com wrote:
> 
> I might be asking the wrong question. Am sorry if i am.
> DO I HAVE TO PAY SOME MONEY FOR ME TO GET SOME INFORMATION OR HELP ON THIS 
> FORUM?
> I men information about the oVirt product and how to fix the bugs.
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[ovirt-users] Re: Invalid username or password

2022-07-04 Thread Vinícius Ferrão via Users

I’ve found on 4.5.1 release notes: 
https://www.ovirt.org/release/4.5.1/#keycloak-sso-setup-for-ovirt-engine

On 4 Jul 2022, at 19:31, less foobar via Users 
mailto:users@ovirt.org>> wrote:

nowhere on the docu it is said that I should use admin@ovirt... how did you 
find that. And yes you are correct admin@ovirt works
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[ovirt-users] Re: Invalid username or password

2022-07-04 Thread Vinícius Ferrão via Users

New username is admin@ovirt if you’re using Keycloak integration.

I’ve scratched my head with this yesterday.

Sent from my iPhone

> On 4 Jul 2022, at 14:29, less foobar via Users  wrote:
> 
> I've installed a fresh ovirt. The default engine user doesn't work for me. 
> * I've tried changing the password with:
> ```
> ovirt-aaa-jdbc-tool user password-reset admin --password-valid-to="2035-12-31 
> 12:00:00Z"
> Picked up JAVA_TOOL_OPTIONS: -Dcom.redhat.fips=false
> Password:
> Reenter password:
> updating user admin...
> user updated successfully
> ```
> * I've tried unblocking the admin user:
> ```
> ovirt-aaa-jdbc-tool user unlock admin
> Picked up JAVA_TOOL_OPTIONS: -Dcom.redhat.fips=false
> updating user admin...
> user updated successfully
> ```
> * I've tried `admin`, `admin@internal` and `root@localhost`
> * Here is my admin details:
> ```
> ovirt-aaa-jdbc-tool user show admin
> Picked up JAVA_TOOL_OPTIONS: -Dcom.redhat.fips=false
> -- User admin(bca1d04a-cc83-4ab6-8233-602ab66df6d9) --
> Namespace: *
> Name: admin
> ID: bca1d04a-cc83-4ab6-8233-602ab66df6d9
> Display Name: 
> Email: root@localhost
> First Name: admin
> Last Name: 
> Department: 
> Title: 
> Description: 
> Account Disabled: false
> Account Locked: false
> Account Unlocked At: 2022-07-04 17:16:50Z
> Account Valid From: 2022-06-28 21:27:59Z
> Account Valid To: -06-28 21:27:59Z
> Account Without Password: false
> Last successful Login At: 1970-01-01 00:00:00Z
> Last unsuccessful Login At: 1970-01-01 00:00:00Z
> Password Valid To: 2035-12-31 12:00:00Z
> ```
> * above the keycloak sign-in page I see ovirt-internal this is why I'm 
> assuming I'm on the right page. No matter where I click on `Administration 
> Porta`, `VM Portal` or in the upper right corner I land on that page. This is 
> why I'm assuming it is the internal login page and my "default" admin account 
> should work. 
> * If I try the `Monitoring Portal` I can login without any issues. 
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[ovirt-users] Re: Upgrade from 4.2 directly to 4.5

2022-06-29 Thread Vinícius Ferrão via Users

On 29 Jun 2022, at 02:43, Sandro Bonazzola
mailto:sbona...@redhat.com>> wrote:

Il giorno mar 28 giu 2022 alle ore 17:52 Vinícius Ferrão via Users
mailto:users@ovirt.org>> ha scritto:
Hello, I would like to know if I can do an oVirt upgrade directly from 4.2 to
4.5.

I don’t have a free host to upgrade the oVirt Node, so I was hoping that would
be possible to fire up a new engine (with restore-backup) on the old oVirt
Nodes and later on upgrade the hosts.

Is this possible?

I had to upgrade Postgres to version 10, on the SelfHosted Engine to proceed.
Just followed the “remote database procedure” even without a remote DB.

I have those questions because I can’t see where or when the OS upgrade will be
done on the SHE during 4.3 -> 4.5.

Thank you.

--
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MANAGER, SOFTWARE ENGINEERING, EMEA R RHV

Red Hat EMEA<https://www.redhat.com/>

[ovirt-users] Upgrade from 4.2 directly to 4.5

2022-06-28 Thread Vinícius Ferrão via Users

Hello, I would like to know if I can do an oVirt upgrade directly from 4.2 to 
4.5.

I don’t have a free host to upgrade the oVirt Node, so I was hoping that would 
be possible to fire up a new engine (with restore-backup) on the old oVirt 
Nodes and later on upgrade the hosts.

Is this possible?

Thank you.

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[ovirt-users] Re: VM access to infiniband network

2022-06-01 Thread Vinícius Ferrão via Users

Hmm, BeeGFS natively supports RDMA.

Which is good.

So the customer wants to access BeeGFS storage inside the VM? Is that the 
purpose? If yes you should use IOMMU to provide ib0 interfaces direct to the VM.

If it’s a unique VM just passthrough the Connect-X card to it.

If it’s more than a VM, you may need to look at SR-IOV, and enable it.

Which case are you looking for?

Regards,

> On 1 Jun 2022, at 14:47, Roberto Bertucci  wrote:
> 
> Thank you Vinicious, customer has beegfs through infiniband and he wants vms 
> having access to beegfs storage.
> I will try to convince him to buy a new mellanox card dedicated to beegfs.
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[ovirt-users] Re: VM access to infiniband network

2022-05-26 Thread Vinícius Ferrão via Users

The error says that you can’t use IPoIB. And you’re using it. IP address on 
Infiniband is IPoIB.

I don’t know the reasoning behind this, but as my experience with IB, IPoIB is 
a resource hog when you have NFS on top of it. There’s no offload on the 
hardware. A 1GbE ethernet card will perform better in some cases.

Regards,

> On 26 May 2022, at 10:14, Roberto Bertucci  wrote:
> 
> Hi all,
> i am facing a problem while trying to associate a Mellanox infiniband 
> interface to a network and using it for VM traffic.
> 
> vdsm log shows the following message:
> The bridge  cannot use IP over InfiniBand interface  name> as port. Please use RoCE interface instead.
> 
> Did anybody face the same problem and solve it?
> Actually ib interface is configured with an ip address and we are mounting 
> NFS filesystems on cluster nodes through infiniband network.
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[ovirt-users] Re: Import an snapshot of an iSCSI Domain

2022-03-07 Thread Vinícius Ferrão via Users

Hi Nir and Strahil.

On 6 Mar 2022, at 19:09, Nir Soffer 
mailto:nsof...@redhat.com>> wrote:

On Fri, Mar 4, 2022 at 8:28 AM Vinícius Ferrão via Users
mailto:users@ovirt.org>> wrote:

Hi again, I don’t know if it will be possible to import the storage domain due 
to conflicts with the UUID of the LVM devices. I’ve tried to issue a 
vgimportclone to chance the UUIDs and import the volume but it still does not 
shows up on oVirt.

LVM can change VG/PV UUIDs and names, but storage domain metadata kept in the
VG tags and volume metadata area contain the old VG and PV names and UUIDs,
so it is unlikely to work.

The system is designed so if the original PVs are bad, you can
disconnect them and
connect a backup of the PVs, and import the storage domain again to the system.

Can you explain in more details what you are trying to do?

Nir

What I was trying to accomplish is get some VM snapshots from days ago.

On my storage system it generates a snapshot of the entire disk pool in a daly 
basis. So it was natural, at least for me, to mount a snapshot at a given time 
to export some VMs from those snapshots. The environment had an attack and 
needed to be recovered from it, and rolling back was the approach.

But that what the issue happened, when trying to import the snapshot from the 
iSCSI share it conflicted with the running iSCSI share, since it’s a storage 
snapshot, it have the exactly same metadata.

I think the issue here is a missing feature on oVirt to remap the metadata and 
permit the mount in this situation, right?

What I ended up doing:
* Removed one of the servers from oVirt Cluster / Datacenter
* Reinstalled from the ground
* Fired up a new hosted engine on a new iSCSI HE dedicated share
* Reconfigured everything: network, VLAN, iSCSI, etc.
* == IMPORTED the snapshot on this new engine
* Created an export domain on another NFS share
* Exported the 6 VM’s that I need to export from the storage-level snapshot to 
the export domain
* Detached the export domain from the temporary engine
* Added the export domain on the production engine
* Deleted the compromised VMs
* Imported the “snapshoted" VM’s from the export domain
* == INFRA is back
* Destroyed the new engine, the snapshot iSCSI share and the export domain
* Reinstalled the host
* Added back to the original Datacenter / Cluster.

As you can see was a tiresome work just to get the VM’s back from an storage 
level snapshot of the iSCSI share, but is what I’ve ended up doing.

Lesson learned: it’s too difficult to recover storage-level snapshots, it’s 
hard on NFS and on iSCSI is extremely worse since you can’t mount iSCSI 
whatever you want to.

My opinion: Should be a feature on oVirt to at least allow to mount this kind 
of conflicting volume as readonly for recovery reasons only.

Thanks.


I don’t know how to mount the iSCSI volume to recover the data. The data is 
there but it’s extremely difficult to get it.

Any ideias?

Thanks.


On 3 Mar 2022, at 20:56, Vinícius Ferrão 
mailto:fer...@versatushpc.com.br>> wrote:

I think I’ve found the root cause, and it’s the LVM inside the iSCSI volume:

[root@rhvh5 ~]# pvscan
WARNING: Not using device /dev/mapper/36589cfc00db9cf56949c63d338ef for PV 
fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha.
WARNING: PV fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha prefers device 
/dev/mapper/36589cfc006f6c96763988802912b because device is used by LV.
PV /dev/mapper/36589cfc006f6c96763988802912bVG 
9377d243-2c18-4620-995f-5fc680e7b4f3   lvm2 [<10.00 TiB / 7.83 TiB free]
PV /dev/mapper/36589cfc00a1b985d3908c07e41adVG 
650b0003-7eec-4fa5-85ea-c019f6408248   lvm2 [199.62 GiB / <123.88 GiB free]
PV /dev/mapper/3600605b00805d8a01c2180fd0d8d8dad3   VG rhvh_rhvh5   
  lvm2 [<277.27 GiB / 54.55 GiB free]
Total: 3 [<10.47 TiB] / in use: 3 [<10.47 TiB] / in no VG: 0 [0   ]

The device that’s not being using is the snapshot. There’s a way to change the 
ID of the device so I can import the data domain?

Thanks.

On 3 Mar 2022, at 20:21, Vinícius Ferrão via Users 
mailto:users@ovirt.org>> wrote:

Hello,

I need to import an old snapshot of my Data domain but oVirt does not find the 
snapshot version when importing on the web interface.

To be clear, I’ve mounted a snapshot on my storage, and exported it on iSCSI. I 
was expecting that I could be able to import it on the engine.

On the web interface this Import Pre-Configured Domain finds the relative IQN 
but it does not show up as a target.

Any ideas?


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[ovirt-users] Re: Import an snapshot of an iSCSI Domain

2022-03-03 Thread Vinícius Ferrão via Users

Hi again, I don’t know if it will be possible to import the storage domain due 
to conflicts with the UUID of the LVM devices. I’ve tried to issue a 
vgimportclone to chance the UUIDs and import the volume but it still does not 
shows up on oVirt.

I don’t know how to mount the iSCSI volume to recover the data. The data is 
there but it’s extremely difficult to get it.

Any ideias?

Thanks.


> On 3 Mar 2022, at 20:56, Vinícius Ferrão  wrote:
> 
> I think I’ve found the root cause, and it’s the LVM inside the iSCSI volume:
> 
> [root@rhvh5 ~]# pvscan 
>  WARNING: Not using device /dev/mapper/36589cfc00db9cf56949c63d338ef for 
> PV fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha.
>  WARNING: PV fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha prefers device 
> /dev/mapper/36589cfc006f6c96763988802912b because device is used by LV.
>  PV /dev/mapper/36589cfc006f6c96763988802912bVG 
> 9377d243-2c18-4620-995f-5fc680e7b4f3   lvm2 [<10.00 TiB / 7.83 TiB free]
>  PV /dev/mapper/36589cfc00a1b985d3908c07e41adVG 
> 650b0003-7eec-4fa5-85ea-c019f6408248   lvm2 [199.62 GiB / <123.88 GiB free]
>  PV /dev/mapper/3600605b00805d8a01c2180fd0d8d8dad3   VG rhvh_rhvh5
>  lvm2 [<277.27 GiB / 54.55 GiB free]
>  Total: 3 [<10.47 TiB] / in use: 3 [<10.47 TiB] / in no VG: 0 [0   ]
> 
> The device that’s not being using is the snapshot. There’s a way to change 
> the ID of the device so I can import the data domain?
> 
> Thanks.
> 
>> On 3 Mar 2022, at 20:21, Vinícius Ferrão via Users  wrote:
>> 
>> Hello,
>> 
>> I need to import an old snapshot of my Data domain but oVirt does not find 
>> the snapshot version when importing on the web interface.
>> 
>> To be clear, I’ve mounted a snapshot on my storage, and exported it on 
>> iSCSI. I was expecting that I could be able to import it on the engine.
>> 
>> On the web interface this Import Pre-Configured Domain finds the relative 
>> IQN but it does not show up as a target.
>> 
>> Any ideas?
>> 
>> 
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[ovirt-users] Re: Import an snapshot of an iSCSI Domain

2022-03-03 Thread Vinícius Ferrão via Users

I think I’ve found the root cause, and it’s the LVM inside the iSCSI volume:

[root@rhvh5 ~]# pvscan 
  WARNING: Not using device /dev/mapper/36589cfc00db9cf56949c63d338ef for 
PV fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha.
  WARNING: PV fTIrnd-gnz2-dI8i-DesK-vIqs-E1BK-mvxtha prefers device 
/dev/mapper/36589cfc006f6c96763988802912b because device is used by LV.
  PV /dev/mapper/36589cfc006f6c96763988802912bVG 
9377d243-2c18-4620-995f-5fc680e7b4f3   lvm2 [<10.00 TiB / 7.83 TiB free]
  PV /dev/mapper/36589cfc00a1b985d3908c07e41adVG 
650b0003-7eec-4fa5-85ea-c019f6408248   lvm2 [199.62 GiB / <123.88 GiB free]
  PV /dev/mapper/3600605b00805d8a01c2180fd0d8d8dad3   VG rhvh_rhvh5 
lvm2 [<277.27 GiB / 54.55 GiB free]
  Total: 3 [<10.47 TiB] / in use: 3 [<10.47 TiB] / in no VG: 0 [0   ]

The device that’s not being using is the snapshot. There’s a way to change the 
ID of the device so I can import the data domain?

Thanks.

> On 3 Mar 2022, at 20:21, Vinícius Ferrão via Users  wrote:
> 
> Hello,
> 
> I need to import an old snapshot of my Data domain but oVirt does not find 
> the snapshot version when importing on the web interface.
> 
> To be clear, I’ve mounted a snapshot on my storage, and exported it on iSCSI. 
> I was expecting that I could be able to import it on the engine.
> 
> On the web interface this Import Pre-Configured Domain finds the relative IQN 
> but it does not show up as a target.
> 
> Any ideas?
> 
> 
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[ovirt-users] Import an snapshot of an iSCSI Domain

2022-03-03 Thread Vinícius Ferrão via Users

Hello,

I need to import an old snapshot of my Data domain but oVirt does not find the 
snapshot version when importing on the web interface.

To be clear, I’ve mounted a snapshot on my storage, and exported it on iSCSI. I 
was expecting that I could be able to import it on the engine.

On the web interface this Import Pre-Configured Domain finds the relative IQN 
but it does not show up as a target.

Any ideas?


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[ovirt-users] Re: oVirt + TrueNAS: Unable to create iSCSI domain - I am missing something obvious

2022-03-02 Thread Vinícius Ferrão via Users

And as a complement for the last message, having 500GB of SLOG is almost
irrelevant.

SLOG isn’t a write cache mechanism, it’s a write offload one. The maximum size
used by SLOG is equal to the maximum transaction group that you could have.

I don’t know the maths to measure this for you, but I do know that a saturated
10GbE link will only generate 8GB of SLOG.

The reason you want to use a bigger device for SLOG is endurance and some
vendors only achieve full performance with bigger devices. It’s not the
capacity you’re looking for.

This information is not easily gathered on the web, but TrueNAS documentation
is getting better, as you could see here:
https://www.truenas.com/docs/references/slog/

Please excuse-me if any information I provided is wrong about SLOG on ZFS. I
don’t think it is but I haven’t rechecked it for a while (maybe 3-5 years).

Sent from my iPhone

On 3 Mar 2022, at 00:28, Vinícius Ferrão wrote:

David do yourself a favor a move away from NFS on TrueNAS for VM hosting.

As a personal experience hosting VMs on NFS may cause your entire
infrastructure to be down if you change something on TrueNAS, even adding a new
NFS share may trigger a NFS server restart and suddenly all your VMs will be
trashed. Emphasis on _may_.

I’ve been using the product since FreeNAS 8, which was 2012 and that’s observed
behavior.

Also oVirt has its quirks with iSCSI, mainly on MPIO (Multipath I/O) but as for
the combination with TrueNAS just stick with iSCSI.

Sent from my iPhone

On 3 Mar 2022, at 00:02, David Johnson wrote:

The cluster is on nfs today, with 500gb NVME SiLOG. Under heavy IO the vm's are
thrown into paused state instead of iowait. A prior email chain identified a
code error in qemu, with a repro using nothing more than DD to set 2 gb on the
virtual disk to 0's .

Since the point of the system is to handle massive IO workloads, this is
obviously not acceptable.

If there is a way to make the nfs Mount more robust I'm all for it over the
headaches that go with managing block io.

On Wed, Mar 2, 2022, 8:46 AM Nir Soffer
mailto:nsof...@redhat.com>> wrote:
On Wed, Mar 2, 2022 at 3:01 PM David Johnson
mailto:djohn...@maxistechnology.com>> wrote:
Good morning folks, and thank you in advance.

I am working on migrating my oVirt backing store from NFS to iSCSI.

oVirt Environment:
oVirt Open Virtualization Manager
Software Version:4.4.4.7-1.el8
TrueNAS environment:
FreeBSD truenas.local 12.2-RELEASE-p11 75566f060d4(HEAD) TRUENAS amd64

The iSCSI share is on a TrueNAS server, exposed to user VDSM and group 36.

oVirt sees the targeted share, but is unable to make use of it.

The latest issue is "Error while executing action New SAN Storage Domain:
Volume Group block size error, please check your Volume Group configuration,
Supported block size is 512 bytes."

As near as I can tell, oVirt does not support any block size other than 512
bytes, while TrueNAS's smallest OOB block size is 4k.

This is correct, oVirt does not support 4k block storage.

I know that oVirt on TrueNAS is a common configuration, so I expect I am
missing something really obvious here, probably a TrueNAS configuration needed
to make TrueNAS work with 512 byte blocks.

Any advice would be helpful.

You can use NFS exported by TrueNAS. With NFS the underlying block size is
hidden
since direct I/O on NFS does not perform direct I/O on the server.

Another way is to use Managed Block Storage (MBS) - if there a Cinder driver
that can manage
your storage server, you can use MBS disks with any block size. The block size
limit comes from
the traditional lvm based storage domain code. When using MBS, you use one LUN
per disk, and
qemu does not have any issue working with such LUNs.

Check with TrueNAS if they support emulating 512 block size of have another way
to
support clients that do not support 4k storage.

Nir
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