Creating CloudWatch alarms to monitor Amazon FSx for Lustre - FSx for Lustre

Creating CloudWatch alarms to monitor Amazon FSx for Lustre

You can create a CloudWatch alarm that sends an Amazon SNS message when the alarm changes state. An alarm watches a single metric over a time period you specify, and performs one or more actions based on the value of the metric relative to a given threshold over a number of time periods. The action is a notification sent to an Amazon SNS topic or Auto Scaling policy.

Alarms invoke actions for sustained state changes only. CloudWatch alarms don't invoke actions simply because they are in a particular state; the state must have changed and been maintained for a specified number of periods.

The following procedures outline how to create alarms for Amazon FSx for Lustre.

To set alarms using the CloudWatch console
  1. Sign in to the AWS Management Console and open the CloudWatch console at

  2. Choose Create Alarm. Doing this launches the Create Alarm Wizard.

  3. Choose FSx Metrics and scroll through the Amazon FSx for Lustre metrics to locate the metric that you want to place an alarm on. To display just the Amazon FSx for Lustre metrics in this dialog box, search on the file system ID of your file system. Choose the metric to create an alarm on, and choose Next.

  4. In the Conditions section, choose the conditions you want for the alarm, and choose Next.


    Metrics may not be published during file system maintenance. To prevent unnecessary and misleading alarm condition changes and to configure your alarms so that they are resilient to missing data points, see Configuring how CloudWatch alarms treat missing data in the Amazon CloudWatch User Guide.

  5. If you want CloudWatch to send you an email when the alarm state is reached, for Whenever this alarm, choose State is ALARM. For Send notification to, choose an existing SNS topic. If you choose Create topic, you can set the name and email addresses for a new email subscription list. This list is saved and appears in this box for future alarms.


    If you use Create topic to create a new Amazon SNS topic, verify the email addresses before sending them notifications. Emails are only sent when the alarm enters an alarm state. If this alarm state change happens before the email addresses are verified, they don't receive a notification.

  6. Preview the alarm you're about to create in the Alarm Preview area. If it appears as expected, choose Create Alarm.

To set an alarm using the AWS CLI
To set an alarm using the CloudWatch API