Manage Amazon CloudWatch alarms for Linux subscriptions

The Linux subscriptions list page in the License Manager console shows the following key details, including the Amazon CloudWatch alarms that you have configured for each Linux subscription that License Manager found on your instances.

• Subscription name

• Subscription type

• Number of running instances per subscription

• Configured Amazon CloudWatch alarms

When you choose a Linux subscription from the list page, the Usage metrics and alarms tab displays data for that subscription. In this tab, Amazon CloudWatch dashboards display for the chosen subscription within the License Manager console. You can adjust the dashboard to encompass a certain time frame, or evaluation range, in hours, days, or a week from a selected date.

In the Usage metrics and alarms tab, each subscription has an Alarms section with the following details:

• Alarm name – The name of the alarm.

• State – The state of the alarm.

• Dimension – The dimensions of the alarm. The dimension will include the AWS Region and instance type that was defined.

• Condition – The condition of the alarm. The condition will include the comparison operator and alarm threshold value that was defined.

You can create CloudWatch alarms using the dimensions and conditions you define to track and alert based on your current subscription utilization. The Linux subscriptions console displays a summary of the subscription names in use, the subscription types, amount of running instances for each, and the alarm status.

The following are possible CloudWatch alarm states:

• OK – The metric or expression is within the defined threshold.

• ALARM – The metric or expression is outside of the defined threshold.

• INSUFFICIENT_DATA – The alarm has just started, the metric is not available, or not enough data is available for the metric to determine the alarm state.

Create a CloudWatch alarm for Linux subscriptions

You can create alarms for each commercial Linux subscription that you have discovered on your running EC2 instances. If necessary, you can create multiple alarms with different dimensions and conditions for each subscription.

To create a CloudWatch alarm for Linux subscriptions from the console

1. Open the License Manager console at https://console.aws.amazon.com/license-manager/.

2. In the left navigation pane, under Linux subscriptions, choose Subscriptions.

3. Under the Subscription name column, choose the subscription to create an alarm for, then choose Create alarm.

4. Specify the following for the alarm:

   • Alarm name – specify a name which resembles AWS-LM-LS-AlarmName.

   • Instance type – choose an instance type that will be using the subscription that was selected.

   • Usage Region – choose the Regions to create the alarms for.

   • Comparison operator – the comparison operator for the alarm threshold.

   • Alarm threshold value – the value for the alarm threshold.

5. Choose Create to create the alarm.

Modify a CloudWatch alarm for Linux subscriptions

You can modify existing CloudWatch alarms from the License Manager console to adapt to changing requirements.

To modify a CloudWatch alarm for Linux subscriptions from the console

1. Open the License Manager console at https://console.aws.amazon.com/license-manager/.

2. In the left navigation pane, under Linux subscriptions, choose Subscriptions.

3. Under the Subscription name column, choose the subscription to modify, then choose Edit.

4. Modify the defined values as required.

5. Choose Edit to modify the alarm.

Delete a CloudWatch alarm for Linux subscriptions

You can delete existing CloudWatch alarms from the License Manager console to adapt to changing requirements.

To delete a CloudWatch alarm for Linux subscriptions from the console

1. Open the License Manager console at https://console.aws.amazon.com/license-manager/.

2. In the left navigation pane, under Linux subscriptions, choose Subscriptions.

3. Under the Subscription name column, choose the subscription to modify, then choose Delete.