Setting or Modifying Alert Thresholds

Monitoring Studio enables you to set alert thresholds for each parameter through a command menu. To set or modify alert thresholds, right-click any Monitor icon > KM commands > Thresholds...

The Threshold Management wizard can also be prompted immediately following the setup of a new monitoring object. The last panel of the wizard offers you the option of either accepting default thresholds, modifying them right away, or setting them later.

An asterisk symbol "*" displayed next to the parameter name signifies that the parameter already has thresholds. You can then choose to either keep the same thresholds or just view them or modify them… as per the requirement.

The Reference Guide lists all the classes with details on the menu commands and the parameters available for each class.

Threshold Type and Alert actions

Monitoring Studio has two "types" of thresholds: Simple (2 alerts maximum) and Advanced (3 alerts maximum). Depending on the user’s selection, both types of thresholds can raise the following alerts:

In addition, you can set Alert Actions to be triggered when an alert is raised on a parameter. Please see the section: Alert Actions capabilities for more details on the same.

Simple Thresholds

This type of threshold is easy and very user-friendly: the threshold values are expressed in terms of "greater than/lower than". All that you need to do is to enter actual "limits" as per the specific requirement, and the frequency of occurrence. This type of threshold has a maximum of two alert types.

Certain parameters have "pre-defined" values. Basically these parameters are the ones with boolean values, so the choice you can make can only be one or the other – depending on the parameter itself.

Advanced thresholds

Select a parameter and check the Use advanced thresholds management box to access the advanced threshold options. Click Next.

This type of threshold setting is a little more complex as it requires the user to enter specific ranges of values as thresholds. This setting is like that of PATROL thresholds, where you have the possibility of raising three alert types:

•	Border Alert: An alert will be triggered if the value polled is not between "x" and "x" and occurs "x" times in a row.

•	Alert 1: An alert will be triggered if the value is between "x" and "x" and occurs "x" times in a row.

•	Alert 2: An alert will be triggered if the value is between "x" and "x" and occurs "x" times in a row.

Note applicable to both Simple and Advanced Thresholds: In general, Alert Actions are triggered only when a parameter breaches its thresholds. However for certain parameters, such as MatchingTrapCount, MatchingLineCount, and MatchingEventCount, it is possible to trigger Alert Actions not just when thresholds are breached, but also each time an SNMP trap is received or a matching line/event is found.
The option Execute the Alert Actions appears in the thresholds wizard for the parameters to which this feature is applicable under the section for Alarms.

Example

Let’s say you are setting thresholds on a String Search. In this wizard you will find the option Execute the Alert Action as String Search has the parameter MatchingLineCount. If you select Execute the Alert Actions every time a matching line is found on the MatchingLineCount parameter, Monitoring Studio will run the Alert Actions every time a line matching the String Search is found.