2015/01/12 先前在「Amazon EC2 Auto Recovery now available in the US East (N. Virginia) Region」這邊發表了，不過剛剛在「New – Auto Recovery for Amazon EC2」這邊看到消息。
重點在於偵測到問題時會重開機，並且保持原來的 instance id、IP address、Elastic IP address、EBS 以及其他外部設定：
The instance will be rebooted (on new hardware if necessary) but will retain its Instance Id, IP Address, Elastic IP Addresses, EBS Volume attachments, and other configuration details.
而被限制在比較新的硬體上，並且目前只有 us-east-1 有：
This feature is currently available for the C3, C4, M3, R3, and T2 instance types running in the US East (Northern Virginia) region; we plan to make it available in other regions as quickly as possible.
當時看到就覺得很實用了，後來在建立一些底層的 infrastructure 時，覺得其他區沒這功能頗難處理。有在 us-east-1 放機器的人可以測試看看。