Microsoft seems to have snuck in a new tool to help diagnose/troubleshoot issues in SharePoint. It is part of the Microsoft SharePoint 2010 Administration Toolkit v2.0 and provides SharePoint administrators with a unified interface that can be used to gather relevant information from a farm, display the results in a meaningful way, identify performance issues, and share or export the collected data and reports for analysis by Microsoft support personnel.
In the example above I installed it on a WFE server in the SharePoint farm
Selecting “New Project” and accepting the server will give you a dashboard.similar to above and access to reports in the following categories: Base, Capacity, Performance, Availability and Usage. NOTE: Make sure you launch SPDiag 3.0 as “Administrator” if you are running it on one of the SharePoint Servers, you can also run it from a client workstation provided some additional configuration has been performed.
SharePoint Diagnostic Studio 2010: Can be installed on any computer running 64-bit Windows 7, or on any server running a 64-bit Windows operating system. Requires Windows PowerShell 2.0.
To find out more about SPDiag 3.0 including: What’s new, Installing and Configuring, and Using it please check out the link here on TechNet.
The Microsoft SharePoint Team Blog has a great article detailing the features of SharePoint Diagnostic Studio.
SharePoint Diagnostic Studio in combination with SharePoint Health Analyzer and System Center Operations Manager gives an unprecedented view into your SharePoint Farm.