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Article ID: 892306 - Last Review: October 27, 2006 - Revision: 1.2
A performance threshold rule in MOM 2005 may collect the wrong performance information when the substring of the defined performance provider contains the retrieved instance name
When you create a performance threshold rule in the
Microsoft Operations Manager (MOM) 2005 Administrator Console to monitor a
specific instance name, the rule may not work as you expect. Specifically, when the
substring of the defined performance provider contains the retrieved instance
name, this
rule may collect performance information from other instance names.
For example, this problem may occur when you try to collect the
Process-
%Processor Time information for the Notepad.exe process. In this scenario, the
MOM agent may collect performance information from the "Note.exe" process or from
the "No.exe" process instead of from the "Notepad.exe" process.
To work around this problem, follow these steps:
- In the left pane of the MOM Administrator Console, select
the performance threshold rule.
- In the right pane, right-click the performance threshold
rule, click Properties, and then click the
Criteria tab.
- Click to select the from instance check
box, and then specify the full instance name that you want to
monitor.
- Click OK to close the Threshold
Rule Properties dialog box.
- Commit the performance threshold rule. Or, wait for the
agents to automatically receive the updated rule.
Microsoft
has confirmed that this is a problem in the Microsoft products that are listed
in the "Applies to" section.
Steps to reproduce the problem
- Create a performance provider for a particular computer in
the MOM Administrator Console, as in the following example:
Performance object: Process
Counter: % Processor Time
Instance: notepad
Note Make sure that you configure an interval, such as five minutes,
when you perform this operation. - Create a performance threshold rule for the MOM agent. Make sure that
this rule is based on the performance provider that you created in step 1.
- In the
Threshold Rule Properties dialog box, click the
Threshold tab, and then set the less than the
following value setting to 100. On the
Alert tab, configure this rule to generate an "alert"
message.
- Commit the performance threshold rule changes.
- On the MOM agent, open the %windir% folder. Copy and paste
the Notepad.exe file to the MOM agent, and then change the file name to
"Note.exe."
- On the MOM agent, start the Note.exe program.
Note Wait several minutes. - Open the Alerts view in the MOM Operator
Console. The MOM agent has generated an "alert" message for the Note.exe
process.
APPLIES TO
- Microsoft Operations Manager (MOM) 2005
| kbperfmon kbtshoot kbprb KB892306 |
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