High Availability Controller (HAC) can be configured to start database processes, and restart failed processes.
When a HAC instance loses connection with a local database server, it calls the start script that is specified in the solidhac.ini configuration file. The script is provided by the user. An example script is provided with the package.
Note A HAC instance assumes that the server is running, and responsive at the moment that the start script terminates. Since HAC does not handle failures that occur in server startup, the script must not exit unless the server accepts connections.
HAC restarts the database server whenever it fails or disappears for some other reason, except in the following cases:
▪ The database process is available in the process list of the operating system.
▪ The database server was shut down by using the High Availability Manager (HAM).
▪ The database server was shut down by using the following command: ADMIN COMMAND 'hsb shutdowndb'