Add existing Azure VM to session host pool (Azure WVD)

Rolaine Nicdao 51

Hello!

Is it possible to add existing VM to session host pool (Azure WVD)?

I cannot find reference documentation, but on the Microsoft Azure Documentation it states here the following:

"If you've already created virtual machines and want to use them with the new host pool, select No"

Reference Link:
https://video2.skills-academy.com/en-us/azure/virtual-desktop/create-host-pools-azure-marketplace

It doesn't state on how to add existing Azure VM to a new host pool.

Thank you!

ROLAINE

prmanhas-MSFT 17,901 Reputation points Microsoft Employee

2020-10-01T05:24:49.33+00:00

@Rolaine Nicdao Any update on the issue?

If the suggested response helped you resolve your issue, do click on "Mark as Answer" and "Up-Vote" for the answer that helped you for benefit of the community.

Thanks.
prmanhas-MSFT 17,901 Reputation points Microsoft Employee

2020-10-09T12:48:14.98+00:00

@Rolaine Nicdao Any update on the issue?

If the suggested response helped you resolve your issue, do click on "Mark as Answer" and "Up-Vote" for the answer that helped you for benefit of the community.

Thanks.
chandra shekar 41 Reputation points

2022-04-10T13:14:58.393+00:00

Hello Everyone,
l
please follow below steps to add existing VM to Host pool, if you have removed the vm accidently from host pool

1.RDP into the existing VM you want to add to the host pool
2.uninstall the two agents (go to >app and features> select 1.remote desktop agent boot loader 2.remote desktop service infrastructure agent(this will unregister with old host pool or even if you want to add to same host pool this step is mandatory
3.Now install Azure Virtual Desktop Agent> apply the token
(link >https://video2.skills-academy.com/en-us/azure/virtual-desktop/create-host-pools-powershell?tabs=azure-powershell#register-the-virtual-machines-to-the-windows-virtual-desktop-host-pool)
4.Now install Azure Virtual Desktop Agent Bootloader.
--------->you can see the VM in the Host pool <-------------
Saad Siddiqui 1 Reputation point

2022-04-19T05:30:14.437+00:00

Thanks a lot - I just followed these steps to reassign a VM to hostpool after it was accidently removed from azure portal.

Accepted answer

prmanhas-MSFT 17,901 Reputation points Microsoft Employee

2020-10-06T13:15:23.607+00:00

@Rolaine Nicdao Apologies for delay in response since I was having discussion internally.

I got the below inputs from our internal team :

If you have existing VM’s and want to add them to a host pool, all you need to do is install the agents with the reg key for that host pool. You can ignore the rest of the article and just follow:

https://video2.skills-academy.com/en-us/azure/virtual-desktop/create-host-pools-powershell#register-the-virtual-machines-to-the-windows-virtual-desktop-host-pool

Hope it helps!!!

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3 people found this answer helpful.
Marcus Zarra 31 Reputation points

2020-10-06T20:25:28.453+00:00

Thank you, that is actually extremely helpful!

I will work through that and report back with results.

Assuming that is correct, is there a chance the docs can get updated? As shown in the attached screenshot, a reference back to the Azure portal here and where the key is would help people in the future.

Thanks again, this really sounds like the right answer, looking forward to giving it a go soon :)

Marcus Zarra 31 Reputation points

2020-10-06T20:26:37.447+00:00

Helps if I attach the image :)

prmanhas-MSFT 17,901 Reputation points Microsoft Employee

2020-10-07T05:04:42.807+00:00

@Marcus Zarra I am glad that the answer helped you!!!

I have already shared the feedback with our internal team to make necessary changes to our docs.

Hope it helps :)

@Rolaine Nicdao Please 'Accept as answer' if it helped, so that it can help others in the community looking for help on similar topics

Rolaine Nicdao 51 Reputation points

2020-10-12T06:21:10.327+00:00

done!

and thank you @Marcus Zarra for the assistance as well.

Nizar BOUAZIZI 61 Reputation points

2021-06-03T13:09:55.357+00:00

Thank you

Ritika Laddha 140 Reputation points

2024-06-27T07:02:40.5+00:00

Hi @prmanhas-MSFT
Document has been updated,
I could not find the answer on the provided link

I want to know if it is still possible to Add existing Azure VM to session host pool? If so, please share the steps to do so
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Resa Dev.to 1 Reputation point

2020-10-04T23:15:48.99+00:00

I hope this helps

https://video2.skills-academy.com/en-us/azure/virtual-desktop/expand-existing-host-pool
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Papp Károly 106 Reputation points

2021-11-17T13:27:01.877+00:00
Hello Colleagues,

I have accidentally deleted one of my hosts from the host pool...

guide: https://video2.skills-academy.com/en-us/azure/virtual-desktop/create-host-pools-powershell

did the updating section on the previously pool-membered VM based on the guideline provided above

reboot

did the register section on the previously pool-membered VM based on the guideline provided above.

reboot

the VM still not appears in the pool. waited 1 hour, did a couple of reboots, no sign of the VM.

Any hint on how to join the VM to the pool? I don't want to redeploy it because I have it working just as before the delete.

Br,
Karoly
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Christopher Janzow 1 Reputation point

2022-01-31T19:49:10.717+00:00

I found this article to be super helpful (it seems to work for pools as well)

https://xenithit.blogspot.com/2021/04/reassign-wvd-personal-session-host.html

The key bits are this:

Set-ItemProperty -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RDInfraAgent -Name RegistrationToken -Value "<Reg Token>" Set-ItemProperty -Path Registry::HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\RDInfraAgent -Name IsRegistered -Value 0 Restart-Service -Name RDAgentBootLoader

Papp Károly 106 Reputation points

2022-04-20T07:33:20.68+00:00

I solved it.
Here you can find the solution.

https://video2.skills-academy.com/en-us/answers/questions/630780/add-a-previously-pool-member-azure-vm-to-session-h.html
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Add existing Azure VM to session host pool (Azure WVD)

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