In Version 11.70, you can use event alarms to identify Connection Manager error conditions. You can set your alarm program script to capture the Connection Manager class ID and message and initiate corrective actions or notifications.

Starting with version 11.70xC4, you can view the values that the database server sets in the INFORMIXCMNAME and INFORMIXCMCONUNITNAME environment variables when writing an alarm handler for the Connection Manager. If the Connection Manager raises an event alarm, the server automatically creates and stores:
For more information, see Connection Manager event alarms.