Sun Microsystems 8190994 manual Master a Master B Hub a

Migration Scenarios

8.Enable the replication agreements from the master to the hubs and other masters in the topology.

9.If you have migrated the data, check that replication is in sync.

10.If you have not migrated the data, reinitialize the master from another master in the topology.

11.If you rerouted client applications (Step 2), you can now route the applications to write to the migrated master.

The following sequence of diagrams illustrate the migration of a master, as described above. The first diagram shows the version 5 topology before the migration of the masters.

5.x Master A

5.x Master B

6.0 Hub A 6.0 Hub B

6.0 Consumer A 6.0 Consumer B

FIGURE 4–9Existing version 5 Topology With Consumers and Hubs Migrated

The first step in migrating a master involves disabling replication agreements, effectively isolating the master from the topology.

Chapter 4 • Migrating a Replicated Topology 61

Sun Confidential: Registered