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Replication is typically set up to replicate data across different geographic locations. 

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SQL Replication Cluster
SQL Replication Cluster

To set up a DualShield HA system with a Microsoft SQL Replication cluster, follow the steps below

Install the Primary DualShield Server

Follow the normal installation process to install the primary DualShield Server. In the database selection step, select Microsoft SQL as the database server

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Install Backend Server
Install Backend Server

Set up a Microsoft SQL Merge Replication Cluster

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Set up a Microsoft SQL Merge Replication Cluster
Set up a Microsoft SQL Merge Replication Cluster

Install the Secondary DualShield Server

The secondary DualShield server must be a replica of the primary DualShield server. Follow the guide below to clone the primary DualShield server to the secondary server machine.

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Install a DualShield Replica Server using DualShield Clone Tool
Install a DualShield Replica Server using DualShield Clone Tool

Change the Database Connection of the Secondary DualShield Server

The last step is to change the database connection in the secondary Dualshield server, so that the secondary Dualshield server is connected to the secondary SQL server, aka the subscriber SQL server.

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Change the Database Connection in a DualShield Server
Change the Database Connection in a DualShield Server