XGEN: Perflib Errors 1008, 1009, 1011 in Application Logs

• Microsoft Exchange Server, versions 4.0 and 5.0

SYMPTOMS

The Event Viewer Application log indicates a large number of the following stop events:

   Event ID 1008
   Source: Perflib
   Type: Error
   Category: None
   Description: The Open Procedure for service "MSExchangeDS" in DLL
   "C:\EXCHSRVR\bin\perfdsa.dll" failed. Performance data for this service
   will not be available. Status code returned is DWORD 0.

   Event ID 1009
   Source: Perflib
   Type: Error
   Category: None
   The Open Procedure for service "MSExchangeDS" in DLL "perfdsa.dll"
   generated an exception. Performance data for this service will not be
   available. Exception code returned is DWORD 0.

   Event ID 1011
   Source: Perflib
   Type: Error
   Category: None
   Description: The library file "C:\EXCHSRVR\bin\perfdsa.dll" specified
   for the "MSExchangeDS" service could not be opened. Performance data for
   this service will not be available. Status code is data DWORD 0.
   These events will be repeated for several DLLs associated with various
   Exchange services.

CAUSE

One possible cause for this behavior is that DLLs associated with performance monitor have hung. The problem was traced to link monitors running against the Exchange Server computer.

RESOLUTION

Reboot all servers that have the link monitors running against the Exchange Server computer. After the servers have been rebooted, the errors should stop appearing in the Event Viewer.