title: Proper setup for high-availability Azure VMs
body: <p>I would like to achieve a high-availability scenario on two VMs in Azure.
  I understand and can follow the directions here:
  <a href="https://www.windowsazure.com/en-us/manage/windows/common-tasks/manage-vm-availability/" rel="nofollow">https://www.windowsazure.com/en-us/manage/windows/common-tasks/manage-vm-availability/</a></p>
  
  <p>However, my question is this: are the two VMs supposed to be exact replicas of each other, so that when one goes down, the other takes over? Or does the Availability Set look after this, so that the two VMs can have totally different content and still utilise each others' free resources?</p>