() Unable to read the header of database . Error . The database may have been moved and therefore may no longer be located where the logs expect it to be.

Details
Product: Exchange
Event ID: 420
Source: ESE
Version: 6.5.6940.0
Component: Microsoft Exchange Extensible Storage Engine
Message: <process name> (<process id>) <storage group name>Unable to read the header of database <name>. Error <error code>. The database may have been moved and therefore may no longer be located where the logs expect it to be.
   
Explanation

The database may have moved and therefore may no longer be where the logs expect it to be. It is possible that during recovery of the database, data was missing or moved.

   
User Action

If performing a soft recovery, restore from backup media.

If performing a hard recovery, refer to the backup set to determine the affected log files. If the corrupted log file is outside the backup set, remove the files outside the backup set and run restore again. If the corruption is contained in log files in the backup set, revert to a previous backup.

The loss of data may occur. If the problem persists, contact Microsoft Product Support Services.

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