Recovery database, introduced in Exchange Server 2010 as a replacement for recovery storage groups of the previous versions, helps in restoring Exchange databases and recovering data. It aids the recovery of data from backups or copies without hindering the client access to the Exchange. Recovery database, combined with the Windows Server backup, forms a free facility by which administrators can backup, restore, and recover Exchange data. - See more information at: http://recoveryexchangeserver..in/2015/12/recovery-database-in-restoring-exchange-2010.html

To repair corrupt, damaged MS Exchange Server databases, download an effective professional software RecoveryFix for Exchange Server Recovery Tool. The software recover corruption issue, such as unexpected misshaping like- Jet engine error, Log files error and etc. That software also recovers all deleted items like emails, contacts, calendars, tasks, notes, journals etc. For more detail click here - http://www.exchangemailboxrecovery.repairedb.org