Changing Infrastructure while on Pump

Overview

When changing your infrastructure to better fit your needs, it is important to note two key factors.

1. Any Reserved Instances that previously applied to your instance that you have changed will no longer apply unless it is the exact same instance (Region, Singe-AZ, family type, etc). This means that any changed instance that previously used an RI, unless there is available on-demand spend to cover it, will now be accruing costs instead of saving you money.

2. If you have an EC2 Compute Savings Plan (SP), if you scale down your EC2 compute instances below the threshold covered by the Savings Plan, you will still accrue the costs of the savings plan while saving on a portion or none of the covered spend. The easiest way to ensure this does not happen is going to your AWS Dashboard > Cost Explorer > Savings Plan Utilization Report. If your coverage report is less than 100%, this means that you are not using every available dollar in your savings plan.

In general you can check which Savings Plans and Reserved Instances you have in the Pump Dashboard > Save Dashboard, where you can see the SPs or RIs attached to your AWS Account. We highly recommend understanding how your infrastructure change interacts with these RIs & SPs before undergoing a major infrastructure transformation.

Undergoing Infrastructure Change

If you believe that you need to undergo a major transformation and project that you will not be using instances covered by any SPs or RIs attached to your account, please reach out to [e-mail].