Acabamos de recibir este texto de Amazon:
Dear Amazon EC2 Customer,
One or more of your Amazon EC2 instances are scheduled to be rebooted for required host maintenance. The maintenance will occur sometime during the window provided for each instance. Each instance will experience a clean reboot and will be unavailable while the updates are applied to the underlying host. This generally takes no more than a few minutes to complete.
Each instance will return to normal operation after the reboot, and all instance configuration and data will be retained. If you have startup procedures that aren’t automated during your instance boot process, please remember that you will need to log in and run them. We will need to do this maintenance update in the window provided. You will not be able to stop/start or re-launch instances in order to avoid this maintenance update.
If you are using Windows Server 2012 R2, please follow the instructions found here: http://aws.amazon.com/windows/2012r2-network-drivers/ to ensure that your instance continues to have network connectivity after reboot. This requires that you run a remediation script in order to ensure continued access to your instance.
Additional information about Amazon EC2 maintenance can be found at:
If you have any questions or concerns, you can contact the AWS Support Team on the community forums and via AWS Premium Support at: http://aws.amazon.com/support.
Amazon Web Services
Profundamente decepcionados. La virtualización permite mucho más que esto!!!