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John
Asked: 2020-02-06 12:00:07 +0800 CST

EC2 dedicated instance - does it support t3a family

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I was able to create a dedicated t3a instance in EC2 console.

But I have not found any mention of t3a here, only t3 https://aws.amazon.com/ec2/pricing/dedicated-instances/

Does t3a support dedicated? How to verify that my VM is dedicated?

UPD1. Here is a tenancy option I spcified - "Dedicated - Run a Dedicated instance" enter image description here

amazon-ec2

1 Answers

  1. Burstable performance instances, which are T3, T3a, and T2 instances, are designed to provide a baseline level of CPU performance with the ability to burst to a higher level when required by your workload.

    From further down in the same reference:

    These instances are available as On-Demand Instances, Reserved Instances, Dedicated Instances, and Spot Instances, but not as Scheduled Instances. They are also not supported on a Dedicated Host.

    So you can run a t3a as a dedicated instance but not on a dedicated host. If t3a didn't support the configuration you want, you wouldn't be able to create it. AWS's interfaces and API's don't allow you to perform unsupported tasks.

    To determine if you're instance is in dedicated you can either look in the Console for that instance under Tenancy or use the CLI: 

    aws ec2 describe-instances --instance-ids i-0150f36d421449696 --query 'Reservations[*].Instances[].Placement[].Tenancy' --output text

    Which will output something similar to:

    host

    enter image description here

    References

    Dedicated Instances

    Burstable Performance Instances

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