Sun-microsystems 8190994 Manual do Utilizador descarregar pdf (Página 61)

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 rst diagram shows the version 5 topology before the migration of the masters.

The rst step in migrating a master involves disabling replication agreements, eectively

isolating the master from the topology.

5.x Master A 5.x Master B

6.0 Consumer A 6.0 Consumer B

6.0 Hub A 6.0 Hub B

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

Migration Scenarios

Chapter 4 • Migrating a Replicated Topology 61

Sun Condential: Registered

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Sun-microsystems 8190994 Manual do Utilizador Página 61