19.3. The Configuration Tool

19.3.1. The Configuration Tool

Installing the Red Hat Enterprise Virtualization Manager modifies only a subset of configuration settings from their defaults. Further modifications are made using the configuration tool: engine-config.
The configuration tool does not require Red Hat JBoss Enterprise Application Platform or the Red Hat Enterprise Virtualization Manager to be running to update the configuration. Configuration key values are stored in the database; configuration changes will not be saved unless the database is operational. Changes are applied when Red Hat JBoss Enterprise Application Platform is restarted.
The Red Hat Enterprise Virtualization Manager stores configuration settings as a series of key-to-value pair mappings. The configuration tool allows you to:
  • List all available configuration keys.
  • List all available configuration values.
  • Retrieve the value of a specific configuration key.
  • Set the value of a specific configuration key.
You are also able to maintain multiple versions of the Manager's configuration with the configuration tool. Use the --cver parameter to specify the configuration version to be used when retrieving or setting a value for a configuration key. The default configuration version is general.