SERVERware Mirror Edition
expands on the features and capabilities of Standalone Edition by introducing High Availability as an additional data protection layer to SERVERware. For even more layers of data protection like Fault Tolerance and Processing Scalability take a look at SERVERware Cluster Edition.
In order to provide High Availability of hosted services, SERVERware Mirror Edition requires two identical servers, a primary and a secondary, connected back-to-back. Data between these servers is synced in real time from primary to secondary.