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Narender_Singh's avatar
Narender_Singh
Copper Contributor
Nov 12, 2021

Why Un-identical VMs Can be part of a Hostpool

Team, 

 

I have few questions which I observed. I know recommendations indeed as using identical VMs as part of a hostpool. But Still trying to understand that why AVD is allowing non identical VM's as part of same hostpool. Any specific use cases which I am missing for this non-identical configuration? 

  • Interesting question. What if the business is a 24-hour shop. They have one size/version of Session Hosts that users are working on and a new size that you're working on moving users over to without interrupting their work. One option is to add the new Session Hosts to the Host Pool, gradually configure drain mode on the old size/version, and remove it.

    In general, having different Session Hosts in the same Host Pool is not recommended, as load balancing will either overprovision users to the smaller Hosts or under-provision, the larger hosts, depending on how you have it configured.

    This is also an unsupported configuration per Microsoft.
  • OrionWithrow's avatar
    OrionWithrow
    Brass Contributor
    Interesting question. What if the business is a 24-hour shop. They have one size/version of Session Hosts that users are working on and a new size that you're working on moving users over to without interrupting their work. One option is to add the new Session Hosts to the Host Pool, gradually configure drain mode on the old size/version, and remove it.

    In general, having different Session Hosts in the same Host Pool is not recommended, as load balancing will either overprovision users to the smaller Hosts or under-provision, the larger hosts, depending on how you have it configured.

    This is also an unsupported configuration per Microsoft.
    • Narender_Singh's avatar
      Narender_Singh
      Copper Contributor
      @Orion - Thanks for the response and agreed with you. Cheers!!!

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