Although a Recovery Database allows you to restore, recover, and mount your database to an Exchange server to retrieve mail while the original database is still serving the user, it has some limitations in terms of the number of databases that you can restore, the type of restore operation that you can perform, and the configuration of the restore operation.
- You can use the Recovery Database for Exchange 2010 mailbox databases only.
- You can use the Recovery Database as a target for restore operations but not for backup operations.
- You can mount only one Recovery Database at any time on an Exchange Server 2010.
- You cannot use the Recovery Database to recover mailbox databases of Exchange Server 2003 or Exchange Server 2007.
- You cannot restore public folder data to the Recovery Database.
