Converting a cold standby installation to clustered

Typically, in a cold standby configuration, the server shares the database and file system with a standby server. During a disruption, the DNS routes the traffic to the standby.

About this task

A typical cold standby configuration is shown in the following illustration. A single server is active and another server is ready for failover.
A diagram of a cold standby configuration with one active server and one server ready for failover

Procedure

To convert the cold standby configuration to clustered, follow these steps:

  1. Upgrade all IBM® UrbanCode Deploy servers to the same version, if necessary.
  2. Start the standby server and ensure that all servers can communicate with one another.
  3. Add a load balancer and point it to both servers.
  4. Modify the DNS to point to the load balancer. At this point, traffic starts to be routed to the previously cold server.

Results

The converted configuration is shown in the following illustration.
A diagram of a clustered configuration with two active servers

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