Table of Contents

Excluding alarms that affect the SLA

Excluding currently active alarms from the SLA calculation

You can keep a currently active alarm from being included in the SLA calculation. This can be done as follows:

  1. Go to the Active Service Alarms page of the SLA element.

    Note

    The active alarms will only be displayed on this page if Active Alarms is set to Show on the Advanced Configuration page of the SLA. Note that you need at least security level 3 to change this setting.

  2. In the list of alarms, in the column Current Active Service Alarm Overruled Inclusion State, select Not included.

Excluding alarms via the Alarm Console

You can exclude real-time and history alarms from the SLA calculation by changing the value of a custom alarm property in the Alarm Console.

To make sure that you can use this option, the PropertyConfiguration.xml file has to be configured correctly for the custom alarm property. The slaField attribute must be specified and set to affecting, and the values for the custom alarm property must be "No" and "Yes". For instance:

<Property id="20" type="Alarm" name="SLA Affecting" filterEnabled="true" slaField="affecting" readOnly="false">
  <Entry metric="1">No</Entry>
  <Entry metric="1">Yes</Entry>
</Property>

Once this has been configured, make sure you can see the column with this property in the Alarm Console. For more information, see Changing the layout of the Alarm Console.

Then do the following to exclude or include an alarm via the Alarm Console:

  1. Right-click the alarm in the Alarm Console and select Properties.

  2. In the Properties window, go to the Custom tab.

  3. For the property SLA Affecting, change the value as required.

Note
  • The default value of the SLA Affecting property is Yes.
  • Excluded alarms will also be excluded from SLA reports.
  • By default, masked alarms affect the SLA calculation. However, you can exclude these automatically by configuring a violation filter that gives them an impact of 0 %. See Setting a violation filter.
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