Three takeaways from the AWS rolling reboot of EC2 instances:

  1. Architecting apps to be cloud-ready is key

  2. Architecting massive-scale clouds to handle massive-scale updates is critical to a successful security strategy; see #1

  3. AWS again shows that the web scale cloud model has distinct advantages over enterprise clouds running legacy enterprise apps that can’t support rapid cycling of many VMs in a short period of time

Here’s a roundup of what else is being said: