Many customers have received varying AWS instance notices related to instance retirement or instance maintenance. These retirement notices often read, “We have important news about your account. EC2 has detected degradation of the underlying hardware hosting your Amazon EC2 instance in the region.” Similarly maintenance notifications read, “One or more of your Amazon EC2 instances is scheduled for maintenance on for 2 hours starting at .” The big question is: do you know what these notices really mean and how you take care of them? Below we’ll discuss AWS notifications and how to act on them. The two biggest takeaways from theses notices are: run don’t walk, on working to replace affected instances; and make sure your mission critical data lives on Elastic Block Storage (EBS).