%1 (%2) %3The file %4 is missing and could not be backed-up.

Details
Product: Exchange
Event ID: 459
Source: ESE
Version: 8.0
Symbolic Name: BACKUP_LOG_FILE_MISSING_ERROR_ID
Message: %1 (%2) %3The file %4 is missing and could not be backed-up.
   
Explanation

This Warning event indicates that a backup failed because a file is missing. If the missing file is a log file, you will not be able to perform an incremental backup.

   
User Action

To resolve this warning, perform a full backup of the storage group.

If you are not already doing so, consider running the tools that Microsoft Exchange offers to help administrators analyze and troubleshoot their Exchange environment. These tools can help you make sure that your configuration is in line with Microsoft best practices. They can also help you identify and resolve performance issues, improve mail flow, and better manage disaster recovery scenarios. Go to the Toolbox node of the Exchange Management Console to run these tools now. For more information about these tools, see Toolbox in the Exchange Server 2007 Help.

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