How to Generate Test PATROL_EV Events Using Monitoring Studio X

  • kb1340
  • Nov. 4, 2025
  • 2 min read

How to generate test PATROL_EV events in BMC Helix Operations Management for Hardware Sentry KM and Storage Analyzer KM, using Monitoring Studio X.

PATROL Events

Related Topics

Introduction

To ensure that you will be notified about any hardware or storage-related issue, you can generate test PATROL_EV events for the parameters that matter the most to you.

To perform this test, you will use Monitoring Studio X to:

  • verify what thresholds are set for this parameter
  • obtain the parameter full path
  • run the required command and force the value modification.
  • verify that events of type p_class=11 and p_class=41 are triggered.

In this article, you will learn how to generate a test PATROL_EV event when the ResponseTime of a physical disk is 30 ms.

Procedure

Step 1: Forcing a Parameter Value

  1. From the Monitoring Studio X Console, select the object for which you want the event to be triggered

  2. In the right panel, click Details and copy the Internal Path (in our example: /SKM_PHYSICALDISK/110isilon_isa/ResponseTime)

    Test PATROL_EV Events – Obtaining the Object Full Path

  3. Click the Response Time parameter, then the Thresholds tab to check current settings. In our example, a WARNING alarm is triggered when Response Time is >= 20 (ms):

    Test PATROL_EV Events – Checking current thresholds

To generate a test event, we will force the value to 30.

  1. Go to Tools > PSL Playground and copy the following command:

    • for Storage Analyzer KM:

      requires SKM_parameter; swSetParameterValue("<Object_Path>", <value>);

    • for Hardware Sentry KM:

      requires MS_HW_parameter; swSetParameterValue("<Object_Path>", <value>);

      where:

      • <Object_Path> is the internal path you copied earlier
      • <value> is the value to be set to generate the event.

Test PATROL_EV Events – Running a PSL command

Using BMC Helix Operations Management

If the Monitoring Studio X console is not available, you can run the PSL command through the Agent Query Tool (AQT). We recommend performing the below steps in Private/Incognito mode.

  1. Go to Configuration > Agents

  2. Click the 3 dots opposite your agent and click Query PATROL Agent:

    Test PATROL_EV Events – Query PATROL Agent

  3. Connect to your agent

    Test PATROL_EV Events – Connecting to the PATROL Agent

  4. Type your command and click Execute.

    Test PATROL_EV Events – Running PSL Command

Step 2: Verifying Value Modification and Events

To check that the parameter value has actually been modified and events are triggered:

  1. In the tree view of the Monitoring Studio X console, click the object first, then the parameter, and finally the Thresholds tab:

    Generating test PATROL_EV Events – Verifying parameter value in Monitoring Studio X

  2. Click the Events main tab and check that events of type 11 and StorageProblem are triggered:

    Generating test PATROL_EV Events – Verifying Events

Note: The class 11 event, generated by the PATROL Agent, is supposed to appear before the Sentry event.

  1. Select STATE CHANGE to see the class 9 event appear when the threshold is no longer breached:

    Generating test PATROL_EV Events – Displaying PATROL 9 events

IMPORTANT: The class 9 (STATE_CHANGE) event ONLY closes the class 11 event previously triggered. The Sentry Software’s event (either 41, HardwareProblem, CollectionProblem, StorageProblem, or Studio) remains open.

PATROL Events