Managing alarms - Amazon CloudWatch
Editing or deleting a CloudWatch alarmHide Auto Scaling alarms
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Managing alarms

Edit or delete a CloudWatch alarm

You can edit or delete an existing alarm.

You can't change the name of an existing alarm. You can copy an alarm and give the new alarm a different name. To copy an alarm, select the check box next to the alarm name in the alarm list and choose Action, Copy.

To edit an alarm

  1. Open the CloudWatch console at https://console.amazonaws.cn/cloudwatch/.

  2. In the navigation pane, choose Alarms, All Alarms.

  3. Choose the name of the alarm.

  4. To add or remove tags, choose the Tags tab and then choose Manage tags.

  5. To edit other parts of the alarm, choose Actions, Edit.

    The Specify metric and conditions page appears, showing a graph and other information about the metric and statistic that you selected.

  6. To change the metric, choose Edit, choose the All metrics tab, and do one of the following:

    • Choose the service namespace that contains the metric that you want. Continue choosing options as they appear to narrow the choices. When a list of metrics appears, select the check box next to the metric that you want.

    • In the search box, enter the name of a metric, dimension, or resource ID and press Enter. Then choose one of the results and continue until a list of metrics appears. Select the check box next to the metric that you want.

    Choose Select metric.

  7. To change other aspects of the alarm, choose the appropriate options. To change how many data points must be breaching for the alarm to go into ALARM state or to change how missing data is treated, choose Additional configuration.

  8. Choose Next.

  9. Under Notification, Auto Scaling action, and EC2 action, optionally edit the actions taken when the alarm is triggered. Then choose Next.

  10. Optionally change the alarm description.

    You can't change the name of an existing alarm. You can copy an alarm and give the new alarm a different name. To copy an alarm, select the check box next to the alarm name in the alarm list and choose Action, Copy.

  11. Choose Next.

  12. Under Preview and create, confirm that the information and conditions are what you want, then choose Update alarm.

To update an email notification list that was created using the Amazon SNS console

  1. Open the Amazon SNS console at https://console.amazonaws.cn/sns/v3/home.

  2. In the navigation pane, choose Topics and then select the ARN for your notification list (topic).

  3. Do one of the following:

    • To add an email address, choose Create subscription. For Protocol, choose Email. For Endpoint, enter the email address of the new recipient. Choose Create subscription.

    • To remove an email address, choose the Subscription ID. Choose Other subscription actions, Delete subscriptions.

  4. Choose Publish to topic.

To delete an alarm

  1. Open the CloudWatch console at https://console.amazonaws.cn/cloudwatch/.

  2. In the navigation pane, choose Alarms.

  3. Select the check box to the left of the name of the alarm, and choose Actions, Delete.

  4. Choose Delete.

Hide Auto Scaling alarms

When you view your alarms in the Amazon Web Services Management Console, you can hide the alarms related to both Amazon EC2 Auto Scaling and Application Auto Scaling. This feature is available only in the Amazon Web Services Management Console.

To temporarily hide Auto Scaling alarms

  1. Open the CloudWatch console at https://console.amazonaws.cn/cloudwatch/.

  2. In the navigation pane, choose Alarms, All alarms, and select Hide Auto Scaling alarms.