title: EBS Volumes used by RDS instance
body: <p>Currently I am going through the <a href="http://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/CHAP_Storage.html" rel="nofollow">Storage for Amazon RDS</a> documentation.</p>
  
  <p>This document mentions that - Most of Amazon RDS uses Amazon Elastic Block Store (Amazon EBS) volumes for database and log storage;</p>
  
  <p>It also mentions that - Depending on the amount of storage requested, Amazon RDS automatically stripes across multiple Amazon EBS volumes to enhance IOPS performance.</p>
  
  <p>So my question is: How EBS volumes are allocated to RDS instance?</p>
  
  <ol>
  <li><p>Whether these are the EBS volumes that are created automatically and attached to RDS instance during it's launch? (EBS volumes on which user don't have control??)</p></li>
  <li><p>Or these are the EBS volumes which are attached to EC2 instance/instances within the same VPC in which I would like to launch my RDS instance?</p></li>
  </ol>
  
  <p>Thx!</p>