This would be a useful page to contain information like where log files are, how to address orphaned locks etc. There was a page in the 2011 guide that contained some similar items
http://wikihelp.autodesk.com/Revit/enu/2011/Help/Revit_Server/Large_Team_Workflow/Troubleshooting
More information on this topic can be found here:
Troubleshooting and Frequently Asked Questions
Also, much of the troubleshooting information that is linked to above in the 2011 guid is irrelevant for 2012. Once this page exists at the correct level I would be more than happy to populate it with updated information :-)