title: Amazon RDS instances and the new Compute Savings Plans
body: <p>I have a small single-instance deployment running on an EC2 instance which hosts both a web application and its database (MySQL). I've been looking to separate the deployment out into an EC2 instace for the web app and an RDS cluster for the database, and wanted to take advantage of the new AWS Savings Plans for both if possible.</p>
  
  <p>My questions the are:</p>
  
  <ol>
  <li>AWS Savings Plans seem to only apply to 'pure' compute EC2 instances, not to RDS instances as well. Can someone confirm or disprove this?</li>
  <li>If Savings Plans did apply to RDS instances, is there a reason to not use them, and instead just use an Instance Reservation?</li>
  </ol>