An installation can add installation exit routines, summarized in Table 1, to suppress dumps. Use IEAVTABX if you want to suppress abend dumps based on the job name, abend code, or other information in the system diagnostic work area (SDWA). Use IEAVTSEL if you want to discard an SVC or SYSMDUMP dump based on information in the dump header or from DAE. Use JES2 exit 4 or JES3 exit IATUX34 to suppress different types of dumps.
| Exit | Processing | Dump Suppression |
|---|---|---|
| IEAVTABX | Before any ABEND dump | Routine(s) can place a return code of 8 in register 15 to suppress the requested dump. |
| IEAVTSEL | After an SVC dump or ABEND SYSMDUMP dump, if the dump was not suppressed by DAE | Routine(s) can clear the dump data set. |
| JES2 exit 4 or JES3 IATUX34 | For any JCL statement | Can change the DSNAME parameter on a dump DD statement to DUMMY to suppress the dump. |