Business Context
A financial services firm is upgrading its CAS environment to ensure business continuity. The current setup has a single point of failure at the controller level. The objective is to add a backup controller to create a high-availability (HA) configuration.
Data Preparation
Simulate a CAS environment with a single primary controller and no backup. This is a common starting point before enabling HA.
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| 1 | /* Initial state: 1 primary controller, 0 backup controllers. */ |
Étapes de réalisation
1
Check server status to confirm only one controller is active.
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| 1 | PROC CAS; |
| 2 | BUILTINS.serverStatus; |
| 3 | RUN; |
2
Execute the addNode action to add a new machine with the 'CONTROLLER' role.
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| 1 | PROC CAS; |
| 2 | BUILTINS.addNode / |
| 3 | node={"cascontroller02.example.com"}, |
| 4 | role="CONTROLLER"; |
| 5 | RUN; |
3
Verify the server status again to confirm the new backup controller is active.
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| 1 | PROC CAS; |
| 2 | BUILTINS.serverStatus; |
| 3 | RUN; |
Expected Result
The action should succeed. The final server status must report two controllers: one with the role 'primary' and the new one with the role 'backup'. The server is now in a high-availability configuration.