title: AWS disksize degradation
body: <p>i have 1 ami which was created from instance with m4 large and 1000GB disk space. Now by using ami i have sponge the instance which by default has m4 large and 1000 GB disk</p>
  
  <p>but we are thinking for downgrading the sponge instance to t2 medium and 200 GB is it possible.</p>
  
  <p>THe first part of it that is bringing it to t2 medium is done but we are stuck at the disk size down-gradation </p>