Scheduled events for Amazon EC2 instances - Amazon Elastic Compute Cloud
Types of scheduled events

Scheduled events for Amazon EC2 instances

AWS can schedule events for your instances, such as a reboot, stop/start, or retirement. These events do not occur frequently. If one of your instances will be affected by a scheduled event, AWS sends an email to the email address that's associated with your AWS account prior to the scheduled event. The email provides details about the event, including the start and end date. Depending on the event, you might be able to take action to control the timing of the event. AWS also sends an AWS Health event, which you can monitor and manage by using Amazon EventBridge. For more information about monitoring AWS Health events with Amazon EventBridge, see Monitoring events in AWS Health with Amazon EventBridge.

Scheduled events are managed by AWS; you can't schedule events for your instances. You can view the events scheduled by AWS, customize scheduled event notifications to include or remove tags from the email notification, reschedule scheduled events, create custom event windows for scheduled events, and perform actions when an instance is scheduled to reboot, retire, or stop.

To update the contact information for your account so that you can be sure to be notified about scheduled events, go to the Account Settings page.

Note

When an instance is affected by a scheduled event, and it is part of an Auto Scaling group, Amazon EC2 Auto Scaling eventually replaces it as part of its health checks, with no further action necessary on your part. For more information about the health checks performed by Amazon EC2 Auto Scaling, see Health checks for instances in an Auto Scaling group in the Amazon EC2 Auto Scaling User Guide.

Types of scheduled events

Amazon EC2 can create the following types of events for your instances, where the event occurs at a scheduled time:

  • Instance stop: At the scheduled time, the instance is stopped. When you start it again, it's migrated to a new host. Applies only to instances backed by Amazon EBS.

  • Instance retirement: At the scheduled time, the instance is stopped if it is backed by Amazon EBS, or terminated if it is backed by instance store.

  • Instance reboot: At the scheduled time, the instance is rebooted.

  • System reboot: At the scheduled time, the host for the instance is rebooted.

  • System maintenance: At the scheduled time, the instance might be temporarily affected by network maintenance or power maintenance.

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