Situation modeling can be done with selected attributes
from the current query-based view or with the conditions of the current
situation.
- Modeling from a query-based view
- Query-based views and historical data are valuable for exploring
your monitored environment and researching conditions to build situations
against. The situation modeling feature enables you to capture data
from a query-based view and use it to model possible threshold scenarios
or to test the effectiveness of a situation. The Model Situation window
has options for calculating different values, comparing attributes,
and transferring the results to the Situation editor to create a new
situation or to fine tune the conditions in an existing situation.
If
the attribute group data has been collected historically, then you
can run statistical algorithms against it and provide values on the
same chart. The model situation chart shows the difference between
the original and calculated values. For example, you might be viewing
data samples over a month-long period and see that a metric peaks
during Monday mornings from 8:00 to 10:00. You can use the modeling
tools to help you make decisions about whether that maximum value
is repeatable or an anomaly, and whether it correlates with other
conditions.
You can open the Model Situation window from the
selected data row or point in a chart view or table view.
- Modeling from the Manage Situations at Managed Systems window
- The Manage Situations at Managed System window displays all the
situations that are associated with the Navigator item for the agent.
You can use situation modeling to refine the thresholds of an existing
situation so that events are opened appropriately: not too often,
but not so seldom that important issues are missed.
- Open the Model Situation window for a selected situation to see
the formula with the current attribute values plotted in the model
situation chart. Use the expression editor and statistical functions
to model other possible thresholds. Then copy the results into the
Situation editor for editing the situation values or to create another
situation.
The tool is disabled if a situation is ineligible for
modeling. Situation definitions that have any these characteristics
cannot be used for modeling:
- Embedded situations, which also includes correlated situations
- Situations with more than ten attributes in the formula
- Situations with no numeric attributes in the formula
- Situations with an attribute repeated in the formula (such as
MyAttribute > 0 AND MyAttribute < 50)
- Situations with Boolean OR logic
- Situations with group functions: count, sum, average, minimum,
maximum