The Calculation Rule lets you indicate the threshold value
that is used to determine the status of a service. You can choose
either most critical, single threshold, or
multiple threshold. All three rules have the same functional
principle: the highest level severity with a rating that crosses a
threshold which you specify is the severity of the service.
Most critical calculation rule
In the case of most critical, the threshold for all severities is
zero (0).
Single threshold calculation rule
Single threshold allows you to choose one threshold for all
severities.
NOTE:
If you want, you can use the Set-to Value to set the
severity to a specific level when the threshold is crossed, instead
of accepting the severity that crossed the threshold.
Multi-threshold calculation rules
Multiple thresholds allow you to set a different threshold for each
severity.
For the single and multi-threshold calculation rules, you can
choose to perform the calculations as a percentage or a value. If
you choose a percentage, then the threshold's values will be
evaluated as percentages. A value threshold interprets the
thresholds as integers. In most cases, a percentage threshold type
is recommended because it is less rigid than a value threshold
type, and therefore allows you to make changes in the number of
subservices without having to change the calculation rule.
To configure calculation rules:
Open the Service Editor
Select
your top-level services folder in the console tree.
Clickon the Configuration
toolbar to open the Service Editor.
Select the service you want to edit.
Select Properties.
Select Status Calculation.
Edit the calculation rule in the Calculation Rule
functionality group.
NOTE:
on the Configuration
toolbar to open the Service Editor.