() Attempted to use database ”, but conversion did not complete successfully on this database. Please restore from backup and re-run database conversion.

Details
Product: Exchange
Event ID: 617
Source: ESE
Version: 6.5.6940.0
Component: Microsoft Exchange Extensible Storage Engine
Message: <process name> (<process id>) <storage group name>Attempted to use database ‘<name>‘, but conversion did not complete successfully on this database. Please restore from backup and re-run database conversion.
   
Explanation

The database conversion failed.

   
User Action

If an out-of-place (fault tolerant) conversion occurred, try the conversion again. If the problem persists, contact Microsoft Product Support Services.

If an in-place (non-fault tolerant) conversion occurred, restore from backup before trying the conversion again. If the problem persists, contact Microsoft Product Support Services.

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