Without much warning, all of my mailbox databases dismounted in a dirty shutdown state. None would mount so I ended up getting Microsoft's Exchange 2010 support on the line. We worked on this issue and ran:
eseutil /p and /d on a few mailboxes over night.
As of this morning, this has resolved the issue on 3 of my 4 databases - those 3 can now mount (I had to rename the associated log folders, and rename the CatalogDatabase folder as well as setting the property for each mailbox to allow it to be overwritten.
For the 4th one, this is the biggest database at 102gb (others were 86, 27, and 5). When I run eseutil /p on it, the eseutil application seems to crash at Deleting unicode fixup table. See attachment.
I tried this multiple times with the same result and the database will not mount. Any idea on what to do next? I am currently waiting on a call back from Microsoft but thought I would look at the EE community as well.