DualShield includes the MySQL database engine that supports the so-called multi-source replication. Multi-source replication enables you to set up a cluster of 2 or more database servers that replicate each other.
Prerequisites
A copy of DualShield with MySQL has been successfully installed on a server and operating as the primary server, and a copy of DualShield has been successfully cloned to one or more secondary servers from the primary server using the DualShield Assistant or DualShield Clone Tool.