Hello, We recently accepted two servers from the Pending Management queue into our production Management Group. Though both servers are reporting Healthy in views scoped on the Windows Computer/Windows Server classes, one of them is not being discovered at the Windows Server OS level. Furthermore, this server is reporting the following 2 events in the OpsMgr event log: Event Level: Error Event ID: 10104 Event Source: Health Service Modules Event Description: In PerfDataSource, querying for Global Snapshot failed with error 'Server execution failed' One or more workflows were affected by this. Workflow name: Microsoft.SystemCenter.AgentManagement.CollectPerfCounter Instance name: <FQDN> Instance ID: {C1997E8A-CFC3-1E76-3CE2-AB4EDB987C6D} Management group: <MgmtGroup> Note that the Workflow name in the above description changes from one entry to the next in the log. Event Level: Warning Event ID: 1103 Event Source: HealthService Event Description: Summary: 1 rule(s)/monitor(s) failed and got unloaded, 1 of them reached the failure limit that prevents automatic reload. Management group "<MgmtGroup>". This is summary only event, please see other events with descriptions of unloaded rule(s)/monitor(s). Any suggestions are appreciated. Larry

BTW, Flushing the agent cache did not resolve the issue;OpsMgr 2007 R2 CU5

Hi, Please ensure you have imported the latest version of the Base OS MP: Windows Server Operating System Management Pack for Operations Manager 2007 http://www.microsoft.com/en-us/download/details.aspx?id=9296 Meanwhile, please check the configurations referring to the MP guide. Hope this helps. Thanks. Nicholas Li TechNet Community Support

Hello, We ended up re-installing the agent from scratch, as we suspected corruption in the installation's binaries. This solved the issue. Thanks, Larry