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Restore data using a recovery database

 

Applies to: Exchange Server 2013

Topic Last Modified: 2014-10-01

A recovery database (RDB) is a special kind of mailbox database that allows you to mount and extract data from a restored mailbox database as part of a recovery operation. RDBs allow you to recover data from a backup or copy of a database without disrupting user access to current data.

After you create an RDB, you can restore a mailbox database into the RDB by using a backup application or by copying a database and its log files into the RDB folder structure. Then you can use the New-MailboxRestoreRequest cmdlet to extract data from the recovered database. Once extracted, the data can then be exported to a folder or merged into an existing mailbox.

For additional management tasks related to RDBs, see Recovery databases.

  • Estimated time to complete this task: 1 minute, plus the time it takes to put the database into a clean shutdown state and to extract the data.

  • You need to be assigned permissions before you can perform this procedure or procedures. To see what permissions you need, see the "Mailbox recovery" entry in the Recipients Permissions topic.

  • Some backup applications have the ability to restore Exchange data directly to a recovery database. Windows Server Backup can restore only file-level backups to a recovery database. It cannot be used to restore application-level backups to a recovery database.

  • The database and log files containing the recovered data must be restored or copied into the RDB folder structure.

  • The database must be in a clean shutdown state. Because an RDB is an alternate restore location for all databases, all restored databases will be in a dirty shutdown state. You must use Eseutil /R to put restored databases into a clean shutdown state.

  1. Copy a recovered database and its log files, or restore a database and it log files, to the location you will use for your recovery database.

  2. Use Eseutil to bring that database into a clean shutdown state. In the following example, EXX is the log generation prefix for the database (for example, E00, E01, E02, and so on).

    Eseutil /R EXX /l <RDBLogFilePath> /d <RDBEdbFolder>
    

    The following example illustrates a log generation prefix of E01 and a recovery database and log file path of E:\Databases\RDB1:

    Eseutil /R E01 /l E:\Databases\RDB1 /d E:\Databases\RDB1
    
  3. Create a recovery database. Give the recovery database a unique name, but use the name and path of the database file for the EdbFilePath parameter, and the location of the recovered log files for the LogFolderPath parameter.

    New-MailboxDatabase -Recovery -Name <RDBName> -Server <ServerName> -EdbFilePath <RDBPathandFileName> -LogFolderPath <LogFilePath>
    

    The following example illustrates creating a recovery database that will be used to recover DB1.edb and its log files, which are located at E:\Databases\RDB1.

    New-MailboxDatabase -Recovery -Name <RDBName> -Server <ServerName> -EdbFilePath "E:\Databases\RDB1\DB1.EDB" -LogFolderPath "E:\Databases\RDB1"
    
  4. Restart the Microsoft Exchange Information Store service:

    Restart-Service MSExchangeIS
    
  5. Mount the recovery database:

    Mount-database <RDBName>
    
  6. Verify that the mounted database contains the mailbox(es) you want to restore:

    Get-MailboxStatistics -Database <RDBName> | ft -auto
    
  7. Use the New-MailboxRestoreRequest cmdlet to restore a mailbox or items from the recovery database to a production mailbox.

    The following example restores the source mailbox that has the MailboxGUID 1d20855f-fd54-4681-98e6-e249f7326ddd on mailbox database DB1 to the target mailbox with the alias Morris.

    New-MailboxRestoreRequest -SourceDatabase DB1 -SourceStoreMailbox 1d20855f-fd54-4681-98e6-e249f7326ddd -TargetMailbox Morris
    

    The following example restores the content of the source mailbox that has the display name Morris Cornejo on mailbox database DB1 to the archive mailbox for Morris@contoso.com.

    New-MaiboxRestoreRequest -SourceDatabase DB1 -SourceStoreMailbox "Morris Cornejo" -TargetMailbox Morris@contoso.com -TargetIsArchive
    
  8. Periodically check the status of the Mailbox restore request using Get-MailboxRestoreRequest.

    Once the restore has a status of Completed, remove the restore request using Remove-MailboxRestoreRequest. For example:

    Get-MailboxRestoreRequest -Status Completed | Remove-MailboxRestoreRequest
    

To verify that you have successfully recovered the mailbox data, open the target mailbox using Outlook or Outlook Web App and verify that the recovered data is present.

TipTip:
Having problems? Ask for help in the Exchange forums. Visit the forums at: Exchange Server, Exchange Online, or Exchange Online Protection.
 
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