title: SSD drives not accessible in EC2 ubuntu Instances
body: <p>In the following EC2 instance types which have SSD drives</p>
  
  <ul>
  <li>r3.2xlarge</li>
  <li>r3.4xlarge</li>
  <li>i2.xlarge</li>
  </ul>
  
  <p>When I login through SSH, I am unable to see the SSD drives. I was trying "df -h".</p>
  
  <p>I have tried </p>
  
  <ul>
  <li>reboot, but that did not help.</li>
  <li>tried to terminate and create a new instance that also does not help. Suggesting that its not one-off issue.</li>
  </ul>