Using Server Groups to Simplify Multi-Master Topologies

When the Number of hosts is large, the use of server groups can simplify the topology and improve resource usage. In a topology with 16 masters, the use of four server groups, each containing four masters, is easier to manage than 16 fully meshed masters.

Setting up a such a topology involves the following steps:

• Configure the 16 masters, without any replication agreements.

• Create four server groups and include four masters in each group.

• Set up replication agreements between all the masters in a single group.

• Set up replication agreements between the first master of each group, the second master of each group, and so forth.

The following figure shows the resulting topology.

Figure 10–4 Server Groups in Multi-Master Topologies