Modifying an Alarm Rule

Procedure

  1. Log in to the management console.
  2. In the upper left corner, select a region and project.
  3. Click Service List in the upper left corner and select Cloud Eye.
  4. Choose Alarm Management > Alarm Rules.
  5. On the displayed Alarm Rules page, use either of the following two methods to modify an alarm rule:
    • Locate the row containing the alarm rule you want to modify, click Modify in the Operation column.
    • Click the name of the alarm rule you want to modify. On the page displayed, click Modify in the upper right corner.
  6. On the Modify Alarm Rule page, modify alarm rule parameters as needed.
    Table 1 Configuring metric alarm parameters

    Parameter

    Description

    Example Value

    Name

    Specifies the alarm rule name.

    alarm-b6al

    Description

    (Optional) Provides supplementary information about the alarm rule.

    N/A

    Alarm Type

    Specifies the alarm type to which the alarm rule applies.

    Metric

    Resource Type

    Specifies the type of the resource the alarm rule is created for.

    Elastic Cloud Server

    Dimension

    Specifies the metric dimension of the selected resource type.

    ECSs

    Monitoring Scope

    Specifies the monitoring scope the alarm rule applies to.

    Resource Groups

    Group

    This parameter is only available if Monitoring Scope is set to Resource groups.

    N/A

    Method

    The only option is Configure manually.

    Configure manually

    Metric

    For example:

    • CPU Usage

      Indicates the CPU usage of the monitored object in percent.

    • Memory Usage

      Indicates the memory usage of the monitored object in percent.

    CPU Usage

    Alarm Policy

    Specifies the policy for triggering an alarm.

    For example, an alarm is triggered if the average value of the monitored metric is 80% or more for three consecutive 5-minute periods.

    N/A

    Alarm Severity

    Specifies the alarm severity, which can be Critical, Major, Minor, or Informational.

    Major

    Mount Point or Disk

    This parameter is displayed on the console and can be configured only when the following conditions are met:

    • Monitoring Scope: Specific resources
    • Resource Type: ECSs or BMSs
    • Method: Configure manually.
    • Metric Name in an alarm policy: disk metric whose name is prefixed with Agent

    For the Windows OS, enter a drive letter, such as C, D, or E. For the Linux OS, enter a mount point, such as /dev or /opt.

    /dev

    Alarm Notification

    Specifies whether to notify users by sending emails or SMS messages, or by sending HTTP/HTTPS messages to servers.

    N/A

    Notification Object

    Specifies the object to which alarm notifications will be sent. You can select the account contact or a topic.

    • The account contact is the tenant owner. If a user registers both a mobile number and an email address, they will receive alarm information through both channels. However, if only one of these contact methods is registered, the alarm information will be sent exclusively to that registered one.
    • A topic is a specific event type for publishing messages or subscribing to notifications. If the required topic is not available, create one first and add subscriptions to it. For details, Creating a Topic and Adding Subscriptions.
    		   

    Validity Period

    Cloud Eye sends notifications only within the validity period specified in the alarm rule.

    If Validity Period is set to 00:00-08:00, Cloud Eye sends notifications only from 00:00 to 08:00.

    N/A

    Trigger Condition

    Specifies the condition for triggering an alarm notification. You can select Generated alarm (when an alarm is generated), Cleared alarm (when an alarm is cleared), or both.

    If you set Alarm Type to Event, Trigger Condition can only be Generated alarm.

    N/A

    (Optional) Enterprise Project

    Specifies the enterprise project that the alarm rule belongs to. Only users with the enterprise project permissions can view and manage the alarm rule.

    default
    Table 2 Configuring event alarm parameters

    Parameter

    Description

    Example Value

    Name

    Specifies the alarm rule name.

    alarm-b6al

    Description

    (Optional) Provides supplementary information about the alarm rule.

    N/A

    Alarm Type

    Specifies the alarm type to which the alarm rule applies.

    Event

    Event Type

    Specifies the event type, which can be System event or Custom event.

    Custom event

    Event Source

    Specifies the service the event is generated for.

    Elastic Cloud Server

    Monitoring Scope

    Specifies the monitoring scope the alarm rule applies to.

    All resources

    Alarm Policy

    Specifies the policy for triggering an alarm.

    If Alarm Type is set to Event and a specific event occurs, Cloud Eye triggers an alarm. For example, if the event Reboot ECS occurs, an alarm will be triggered.

    NOTE:

    A maximum of 50 alarm policies can be added to an alarm rule. If any one of these alarm policies is met, an alarm will be triggered.

    N/A

    Event Name

    Specifies the event name.

    For events supported by event monitoring, see Events Supported by Event Monitoring.

    ECS deleted

    Trigger Mode

    You can select Immediate trigger or Accumulative trigger based on the operation severity.

    • Immediate trigger: An alarm is triggered once an event occurs.
    • Accumulative trigger: An alarm is only triggered when the number of times an event occurs meets the preset value.

    Immediate trigger

    Alarm Policy

    Specifies the policy for triggering an alarm.

    NOTE:

    This parameter is mandatory when Trigger Mode is set to Accumulative trigger.

    An alarm is triggered if the event occurred for three consecutive periods of 5 minutes.

    Alarm Severity

    Specifies the alarm severity, which can be Critical, Major, Minor, or Informational.

    Major

    Operation

    You can click Delete to delete an alarm policy.

    Delete

    Alarm Notification

    Specifies whether to notify users when alarms are triggered. Notifications can be sent by email, SMS message, or HTTP/HTTPS message.

    N/A

    Notification Object

    Specifies the object to which alarm notifications will be sent. You can select the account contact or a topic.

    • The account contact is the tenant owner. If a user registers both a mobile number and an email address, they will receive alarm information through both channels. However, if only one of these contact methods is registered, the alarm information will be sent exclusively to that registered one.
    • A topic is a specific event type for publishing messages or subscribing to notifications. If the required topic is not available, create one first and add subscriptions to it. For details, Creating a Topic and Adding Subscriptions.
    		   

    Validity Period

    Cloud Eye sends notifications only within the validity period specified in the alarm rule.

    If Validity Period is set to 00:00-08:00, Cloud Eye sends notifications only from 00:00 to 08:00.

    N/A

    Trigger Condition

    Specifies the condition for triggering an alarm notification. You can select Generated alarm (when an alarm is generated), Cleared alarm (when an alarm is cleared), or both.

    If you set Alarm Type to Event, Trigger Condition can only be Generated alarm.

    N/A

    (Optional) Enterprise Project

    Specifies the enterprise project that the alarm rule belongs to. Only users with the enterprise project permissions can view and manage the alarm rule.

    default

  1. Click Modify.
Parent topic: Alarm Rule Management