So you have moved your infrastructure into the cloud and everything is growing and going wonderfully. Now you’ve got some consultant or job application telling you that you need to think about HA, DR and overall platform architecture. How should you tell them that they are wrong?
Just because you are hosted in the cloud (and it doesn’t matter which cloud) you still need to plan for system failures and major outages. In case you missed it today there was a large portion of the Internet which wasn’t available today because of am Amazon AWS outage which happened. And this isn’t the first time that something like this has happened.
When moving applications and services up to a managed cloud like EC2, AWS, Rackspace, Azure, etc. you still need to take the time to plan out how the application or service is going to run in the event that the primary cloud is offline, or that there’s some sort of network issue, etc.