Additional considerations for Amazon EC2 instance recommendations in AWS Migration Hub - AWS Migration Hub

AWS Migration Hub will no longer be open to new customers starting November 7, 2025. To continue using the service, sign up prior to November 7, 2025. For capabilities similar to AWS Migration Hub, explore AWS Transform.

Additional considerations for Amazon EC2 instance recommendations in AWS Migration Hub

Keep the following considerations in mind when generating Amazon EC2 instance recommendations.

  • Burstable instances (T2 and T3) have an additional pricing mechanism that is computed based on CPU credits. For the burstable instances, we use the provided average and peak CPU data points to compute an estimated number of consumed CPU credits. This is translated into an adjusted overall recommendation.

  • Only current generation instances are recommended. The following types of instances are excluded from recommendations:

    • Previous generation instances (C3, for example)

    • Bare Metal instances

    • ARM instances (A1, for example)

    • 32-bit instances

  • If the operating system for a server is not supported by Amazon EC2, that server's returned recommendation will be Linux. Additional information can be found in the Recommendation.EC2.Remarks column for each affected server.