ABEND dump
An ABEND dump shows the virtual storage predominately for an unauthorized program. Typically, a dump is requested when the program cannot continue processing and abnormally ends. An operator can also request an ABEND dump while ending a program or an address space.
- Parameters supplied in the IEAABD00, IEADMR00, and IEADMP00 parmlib members for SYSABENDs, SYSMDUMPs, and SYSUDUMPs, respectively.
- A determination by the system
- ABEND, CALLRTM, or SETRP macro dump options
- IEAVTABX, IEAVADFM, or IEAVADUS installation exit processing
IBM® recommends the use of SYSMDUMP, the unformatted dump. Unformatted dumping is more efficient because only the storage requested is written to the data set, which allows the application to capture diagnostic data and be brought back online faster. Also, pre-formatted dumps force the system to select a single set of reports, too many for the diagnosis of many problems, and too few for others. Unformatted dumps allow the analyst to determine, from a wide variety of reports, what information to use and how it is presented.
Use SYSUDUMP for diagnosis of program problems that need simple problem data. A SYSABEND dump, through the IBM supplied defaults, supplies more of the system information related to the application program's processing than a SYSUDUMP. The additional information may be better suited for complex problem diagnosis.