You must enable the following configuration parameters before you configure Adaptive Server for failover:
enable CIS – enables Component Integration Services (CIS). This configuration parameter is enabled by default.
enable xact coordination – enables Distributed Transaction Management (DTM). This configuration parameter is enabled by default.
enable HA – enables Adaptive Server to function as a companion in a high availability system. enable HA is off by default. This configuration is static, so you must reboot Adaptive Server for it to take effect. This parameter causes a message to be written to your error log stating that you have started the Adaptive Server in a high availability system.
See the System Administration Guide for information about enabling configuration parameters.