This chapter describes the action required if an error occurs in database multiplexing mode.
In database multiplexing mode, when an error is detected, the switch or disconnection of the standby server is performed automatically, so that only the primary server starts degrading. In this case, the recovery tasks will be required for the standby server on which the switch or disconnection was performed.
Other possible cases are as follows:
When automatic switch fails
When automatic disconnection fails
When all servers or instances were stopped
