I came across this great posting from Jie Li while looking around Stefan Goßner’s blog at http://blogs.technet.com/b/stefan_gossner/ and thought it would make interesting reading for the Project audience too. One word of caution first – Jie Li mentions the well known SharePoint practice of detaching content databases while applying patches so that you can upgrade them at your leisure later – once you have re-attached them. Project Server databases (Archive, Draft, Published and Reporting) ARE NOT content databases – please do no detach these while patching or you will get into an inconsistent state that may cause you (and then me and my support colleagues) big problems… On to the article - http://blogs.msdn.com/b/opal/archive/2011/06/30/the-mystery-behind-sharepoint-2010-patching.aspx . Enjoy!
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The Mystery Behind SharePoint 2010 Patching