Printing and analyzing dumps
You might need to print and analyze a memory dump to help to diagnose a problem.
Types of Db2 for z/OS dumps
The following table gives the data set, output type, printing information, and cause of each Db2 dump type.
| Dump type | Data set | Output type | Printed by | Caused by |
|---|---|---|---|---|
| Dynamic (z/OS® console) | SYS1.DUMPxx | Machine readable | IPCS in conjunction with a Db2 verb exit | Operator entering z/OS 'DUMP' command |
| SNAP | Dynamic allocation of SNAP data set for SYSOUT | Formatted | Normally SYSOUT=A | An abend of a Db2 application |
| Stand-alone | Defined by installation (tape or disk) | Machine readable | IPCS in conjunction with a Db2 verb exit | Operator IPL of the stand-alone dump program |
| SVC | SYS1.DUMPxx | Machine readable | IPCS in conjunction with a Db2 verb exit | z/OS or Db2 functional recovery routine detecting error |
| SYSABEND | Defined by JCL (SYSOUT=A) | Formatted | Normally SYSOUT=A | An abend condition (and only taken if there is a SYSABEND DD statement for the step) |
| SYSUDUMP | Defined by JCL (SYSOUT=A) | Formatted | Normally SYSOUT=A | An abend condition (and only taken if there is a SYSUDUMP DD statement for the step) |