In case of disaster, you can recover an entire Exchange Server by restoring all its disks from a disk backup. All of the Exchange Server services will be up and running without any additional actions, if you follow the recommendations outlined in the "Backing up an application server" section. The server data will be reverted to the state that it was at the time of backup.
By using Acronis Backup & Recovery 11.5, you can recover Exchange database files from a disk backup. To bring a database online, mount it. For details, see "Mounting Exchange Server databases".
If you need to perform granular recovery of individual mailboxes or their items, mount the restored database either as a recovery database (RDB) in Exchange 2010, or to a recovery storage group (RSG) in Exchange 2003/2007. For details, see "Granular recovery of mailboxes".