WARNING: orphaned scrubbed LV(673) detected

If you run an integrity check on an Exchange 2010 database using Eseutil /G then you might find entries in the output similar to "WARNING: orphaned scrubbed LV(673) detected". It seems these can be generated if the server loses connection to the database without dismounting it first, if the server crashes, or if it's powered off without shutting down. In speaking with Microsoft they said a few of them aren't a danger to the database. However, a lot of them suggests there might be other issue with the database as well, and you should consider moving the mailboxes to a new database and removing the old one.