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Exchange Logs inconsistent, causing backups to fail

averyln asked
Last Modified: 2016-03-14
A client of ours is running Exchange 2010 and has a mailbox store of 450GB.  The storage on the server has been filling up and they were deleting log files for the past couple of months.  
When asked to perform a backup, the backup fails when checking the consistency of the Exchange logs.  
We need to unmount the store and run a check on it, and I'm assuming there would be failures on it resulting in the need for repair.  The problem is that the store is so large that it would create a long amount of downtime for the client.

Can anyone suggest a method for fixing this issue that wouldn't result in several days of downtime?
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