Did you try eseutil /p? That can also cause problems but as a last restort it should work. If not then do you have a viable backup from last night? I would do a restore if nothing else works. Also, <a href=”http://social.technet.microsoft.com/Forums/en-US/exchangesvravailabilityandisasterrecovery/thread/4d1f1ec0-afa7-4a97-af2c-896f3d3c2abb”>here is a blog </a>that may provide useful information for you.