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Dedicated host xxxxx does not support the requested instance type.

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I am new to the dedicated host world. I created a new dedicated host for T3 instances. I am getting this error when trying to launch a t3.xlarge. t3.micros will launch all day. Am I missing something?

Instance launch failed Dedicated host h-xxxxx does not support the requested instance type.

Launch log Initializing requests Succeeded Launch initiation Failed

  • CFun3030
    il y a un an

    I also have it set to allow multiple instance types in the same family.

    Capacity Table Instance type Available capacity t3.2xlarge 24 t3.xlarge 48 t3.large 96 t3.micro 192

  • CFun3030
    il y a un an

    Only some instances work on the t3 dedicated host.

    t3.nano, t3.micro, t3.small, t3.medium all work.

    t3.large, t3.xlarge, t3.2xlarge do not work on that host for some reason. Keep in mind nothing else is running on this host.

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CFun3030
demandé il y a un an271 vues
1 réponse
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Did you stop the dedicated host instance, made the changes and the start it? https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/how-dedicated-hosts-work.html#modify-host-support

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vtjean
répondu il y a un an
  • CFun3030
    il y a un an

    Yes. It keeps saying Instance launch failed Dedicated host h-xxxxx does not support the requested instance type.

    I can launch t3.nano t3.micro t3.small t3.medium

    all on a NEW dedicated T3 host with nothing else running on it. Anything above that does not work. Support is taking their time.

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