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The SharePoint Diagnostic tool (SPDiag) was created to simplify and standardize troubleshooting of SharePoint Products and Technologies, and to provide a unified view of collected data. SharePoint Products and Technologies administrators can use SPDiag to gather relevant information from a farm, display the results in a meaningful way, identify performance issues, and export the collected data and reports for analysis by Microsoft support personnel.

Download it from: https://www.microsoft.com/downloads/details.aspx?familyid=1c222804-51c7-4bb5-ae3d-89c68ad27a78&displaylang=en&tm

Thanks @mysharepoint for the heads up.