Unable to approve Gateways in SCOM 2012

Recently I run into an issue that I can't approve a new Gateway to a SCOM Environment. As soon as I started the Microsoft.EnterpriseManagement.GatewayApprovalTool.exe I received to following error.  Microsoft.EnterpriseManagement.gatewayApprovalTool.exe /ManagementServerName=<managementserverFQDN> /GatewayName=<GatewayFQDN> /Action=Create Microsoft.EnterpriseManagement.GatewayApprovalTool Copyright (c) Microsoft Corporation. All rights reserved. The request failed with the following error: Index was out of range. Must be…

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Print Server Management Pack (Version 6.0.7004.0) can cause OpsMgr Database grow

When you import the new Print Server Management Pack  (Version 6.0.7004.0) http://www.microsoft.com/en-us/download/details.aspx?id=3290 you might notice that your OpsMgr database grows unexpected. While troubleshooting an unexpected database growing issue at customer we found out that the main reason for increased data volume in operational database was the MP “Windows Server Print Server 2008 Management Pack”. Drilling down I saw there are…

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Forcing OpsMgr Console to start in English

Typically when you start the OpsMgr console it will show you Display Strings according to your user setting. E.g. if you set your user specific regional settings to German all Display strings available in OpsMgr will be provided in your language.   So you can easily change your regional settings and restart the OpsMgr console to switch…

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Get-SCOMAgent failed to run: Object reference not set to an instance of an object.

When you try to run SCOM 2012 PowerShell command let Get-SCOMAgent it might run into the following error. PS D:\>Get-ScomAgentGet-SCOMAgent:Object reference not set to an instance of an object. I figured out that this error was related to one specific SCOM Agent. The error did not report any details what’s wrong. I resolved the problem by…

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Multiple Counters for Performance Counter OpsMgr SDK Service/Client Connections on OpsMgr 2012 Console

You are wondering why you see multiple Performance Counter form SDK Service/Client Connections on OpsMgr 2012 Console? In my test environment with just one single MS I would expect to see only one single entry in the performance view Client Connections, because there is only one SDK Service running in my environment. But checking the…

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Schedule Maintenance Mode tool might not work correctly with non-english local settings

If you want to use the Schedule Maintenance Mode tool from OpsMgr R2 Admin reskit (Download) you might run in trouble in case your system is running with non-english local settings. This happens if your configured locale doesn’t use AM/PM time symbols. In this case you can’t schedule any Maintenance Mode in the afternoon/evening. 🙁…

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OpsMgr might stop synchorinization of Datawarehouse Database after moving RMS

One of my customers run into a critical issue after promoting another Management Server to RMS. The worse thing about this, you can’t see any alert or any other hint that anything is wrong. The reason we could identify was a missing instance called “Datawarehouse Synchronization Server“. Looking at this class we see all synchronization rules…

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How to create a dynamic group of Computers objects hosting a specific service

Some customers are asking for dynamic groups that contains all computer objects that are hosting specific instances. As Example: You need a dynamic group that contains all windows computers where a windows service “xyz” is installed. Such a containment group can’t be created via OpsMgr UI. You can create a group of specific instances itself, but…

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Troubleshooting Management Pack / Fix wrong Roll-up Monitor state

Sometimes you might see a wrong status on Roll-up Monitors. Wrong state in this case means e.g. a Roll-up Monitor stays in a critical state even if all unit monitors below are in healthy state.There are different reasons when such a condition can occur. As I heard from customers, most of the customer try to fix such…

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Showing Baseline in OpsMgr Performance View

There are a few very good explanations on blogs discussing the difficult adjustments of STT (self-tuning-thresholds) monitorslike this http://opsmgrunleashed.wordpress.com/2007/06/20/opsmgr-by-example-configuring-baselines/ or http://blogs.technet.com/b/kevinholman/archive/2008/03/19/self-tuning-thresholds-love-and-hate.aspx When discussing advantages and disadvantages of self-tuning-threshold monitors in OpsMgr with customers I often be asked how we can really SEE a calculated baseline. According to this technet page we can switch on the baseline on performance views by…

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