Use the following procedure to create a probe-based (script) performance collection rule in Essentials 2007. Probe-based rules can get data from an unlimited number of sources, such as the file system or operating system properties. Probe-based rules should not change the state of an object. The data collected by the rule will display in performance views for the targeted objects.

To create a probe-based performance collection rule

  1. Start the Essentials 2007 Create Rule Wizard.

    For information about starting the Create Rule Wizard, see How to Start the Create Rule Wizard in System Center Essentials.
  2. On the Select a Rule Type page, do the following:

    1. Expand Collection Rules, expand Probe Based, and then click Script (Performance).

    2. Select a Management pack from the list, such as Default Management Pack, or click New to create a Management Pack with the Create a Management Pack Wizard.

      The rule will be added to the specified Management Pack; therefore, only unsealed Management Packs are listed.
    3. Click Next.

  3. On the Rule Name and Description page, do the following:

    1. Type the Rule name, such as NumProc.

    2. Click Select, select a target, such as Windows Computer, and then click OK.

    3. Leave Rule is enabled selected to have the rule take affect at the completion of the wizard, or clear the check box to enable the rule at a later time, and then click Next.

  4. On the Schedule page, specify how often the rule will run, and then Select Synchronize at to set the time the rule will start. For example, set the rule to run every 1 hour starting at 12:15 AM. Rules set to run on a daily interval are scheduled to start at 12:00AM.

  5. On the Script page, do the following:

    1. Type the Name and extension of the script, such as NumProc.vbs.

    2. Set Timeout to the length of time in seconds, minutes, hours, or days, the script can run before it is terminated.

    3. Type the Script, for example:

      Set oAPI = CreateObject("MOM.ScriptAPI")

      set bag= oAPI.CreatePropertyBag()

      Set WshShell = WScript.CreateObject("WScript.Shell")

      Set WshSysEnv = WshShell.Environment("SYSTEM")

      call bag.AddValue("Number of Processors", WshSysEnv("NUMBER_OF_PROCESSORS"))

      call oAPI.Return(bag)

      The preceding example will determine the number of processors a computer has.
    4. Click Next.

  6. On the Performance Mapper page, map parameters from the script to fields in the event, for example:

    Parameters are case sensitive.
    1. In Object, type Processor.

    2. In Counter, type Number_of_Processors.

    3. In Instances, type All Instances.

    4. Click the Value () button.

    5. In the Value dialog box, click Data, and then click Property.

    6. In Value, replace [PropertyName] with Number of Processors. The path should read, $Data/Property[@Name='Number of Processors']$.

    7. Click OK, and then click Create.

See Also