KI2AT840I SDUMP ISSUED FOR ABEND <`diagnostic information`>

Explanation
ATF error recovery issued an SDUMP.
 This is a diagnostic message. The message might appear with other diagnostic messages that further describe the reason for the error. 

System action
 The ATF data collector terminates with a dump. With the data collector now disabled, trace results collected to this point are still available for viewing. 

User response
Contact IBM Software Support.  