Automatic shutdown of unused Amazon EC2 instances

Today Amazon released another big enhancement for EC2 users, CloudWatch alarms can now be used to detect idle/unused or even underutilized instances and shut them down.  Users have the option of first sending an email, shutting down the instance and/or even terminating the instance after a predefined period of time.

What does this mean?  It means we can stop wasting money on instances that have been forgotten for a couple weeks, it’s also a great tool to use for keeping developer instances in check, the early email warnings provide an opportunity to prevent accidental terminations without taxing managers to monitor usage daily.


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