If an intended dump is missing, use this list to decide why. The
list gives reasons why dumps are suppressed, including the ways discussed
in this topic. In planning for problem determination, be aware of
all of these ways so that your installation does not suppress intended
dumps.
- DAE suppression of dumps. See Using DAE to suppress dumps.
- SLIP command that suppresses all dumps for an abend code.
See Using a SLIP command to suppress dumps.
- An ABEND macro without a DUMP parameter. See Using an ABEND macro to suppress dumps.
- An MVS™ installation exit
routine that suppresses the dump. See Using installation exit routines to suppress dumps.
- Resource Access Control Facility (RACF®) control of programs in an address space
to be dumped: Beginning with RACF 1.8.1,
the installation can protect ABEND dumps of programs using the FACILITY
class. The protection can keep you from accessing a dump.
- Dump on another system blocked by SYSDCOND in the PROBDESC
area and the IEASDUMP.QUERY routine. A dump on another system
in a sysplex is requested by a DUMP command or SDUMPX macro with a
REMOTE parameter. If the area specified by the PROBDESC parameter
contains SYSDCOND, the dump on the other system is not written because
of either of the following on the other system:
- No IEASDUMP.QUERY routine exists
- No IEASDUMP.QUERY routine returns a code of 0
- Dump suppressed by CHNGDUMP command. If a CHNGDUMP command
specifies NODUMP for SVC dumps:
- All SVC dumps on the system are suppressed.
- If a DUMP command or SDUMPX macro includes a REMOTE parameter,
the dump on the local system and the dumps on other systems in the
sysplex are suppressed.
- Dump on another system suppressed by CHNGDUMP command on the
other system. If a DUMP command or SDUMPX macro includes a REMOTE
parameter and a CHNGDUMP command previously entered on another system
in the sysplex specifies NODUMP for SVC dumps, the SVC dump on the
other system is suppressed. The dump on the local system is written.
The system can also place the dump in another data set, so that
it is not in the original data set specified in a message you received:
- An installation exit routine at JES2 exit 4 or at JES3 exit
IATUX34 can change the dump data set name.
- DUMPDS operator command can redirect SVC dump output. The
command can redirect SVC dump output to other SYS1.DUMPxx data sets.
For more information about the following topics, see the following
references: