Failover parameter in /etc/enswitch/databases.ini
In the configuration file /etc/enswitch/databases.ini the following parameter is available:
failover = yes
This is NOT related to any HA failover setup for the database.
The 'failover' parameter is used to set up failover connections to alternative database addresses.
An example use case for this would be if a report server was set up to run reports on slave db servers, then 'failover' could be set to yes in order to select a second slave db server, in case the first one was not available.
So, if HA is set for the database system, then the 'failover' parameter has limited functionality.