# Creating an Alarm Rule to Monitor an Event

#### Scenarios

This topic describes how to create an alarm rule to monitor an event.

#### Procedure

1. Log in to the management console.
2. Click Service List in the upper left corner, and select Cloud Eye.
3. In the navigation pane on the left, choose Event Monitoring.
4. Click Create Alarm Rule.
5. Specify resource type and event type.
   Figure 1 Creating a alarm rule

   Table 1 Parameter description
   Parameter | Description
   --- | ---
   Name | Specifies the alarm rule name. The system generates a random name, which you can modify.
   Description | (Optional) Provides supplementary information about the alarm rule.
   Resource Type | Specifies the type of the resource the alarm rule is created for.
   Dimension | Specifies the metric dimension of the selected resource type. Example value: System event
   Method | It is fixed to Configure manually.
   Event Source | Specifies the service the event is generated for. Example value: Elastic Cloud Server
   Event Name | Specifies the instantaneous operations users performed on resources, such as login and logout. For events supported by event monitoring, see Events Supported by Event Monitoring. Example value: Delete ECS
   Monitoring Scope | Specifies the monitoring scope for event monitoring. Example value: All resources
   Trigger Mode | You can select immediate trigger or accumulative trigger based on the operation severity. Example value: Immediate trigger
   Alarm Severity | Specifies the alarm severity, which can be Critical, Major, Minor, or Informational. Example value: Major

6. Enable the alarm notification function and set event alarm parameters.
   Figure 2 Create Alarm Rule

   Table 2 Parameter description
   Parameter | Description
   --- | ---
   Alarm Notification | Specifies whether to notify users when alarms are triggered. Notifications can be sent by email, text message, or HTTP/HTTPS message.
   Validity Period | Cloud Eye sends notifications only within the validity period specified in the alarm rule. If Validity Period is set to 08:00-20:00, Cloud Eye sends notifications only within 08:00-20:00.

   Notification Object

   Specifies the object that receives alarm notifications. You can select the account contact or a topic.
   - Account contact is the mobile phone number and email address of the registered account.
   - Topic: A topic is used to publish messages and subscribe to notifications. If the required topic is unavailable, create one first and add subscriptions to it. For details, see Creating a Topic and Adding Subscriptions.

   Trigger Condition | Specifies the trigger of alarm notifications.

7. Click Create.

   The alarm rule is created.

Parent topic: Event Monitoring