Dumping diagnostic information

Dumps contain diagnostic information that can be used when investigating system problems. Various options are available when obtaining dumps.

Dump options are available for use with the MVS™ system command /F <JOBNAME>,APPL=DUMP.

To get help on the available dump options, issue the following command:

/F <JOB_NAME>,APPL=DUMP,?

If the IBM® JVM is used, a subset of the options can be used to provide JVM dumps. The IBM JVM can produce a Java™ heap dump, a Java dump, or a Java system dump. These are produced by a running JVM, and can be requested during typical operation of the CICS® Transaction Gateway. The dumps contain diagnostic information that can be used when investigating system problems.

For further information on IBM JVM dumps, see the IBM Java Diagnostic Guide at IBM Java Diagnostic Guide.

Parameters

There are no short forms of the parameter names.

Option	Description
ALL	Generates all dumps. This option must be specified as the only option and cannot be combined with other dump options.
CTGINFO	Generates a dump containing information about the configuration of CICS Transaction Gateway.
HEAP	Generates a Java heap dump.
JAVA	Generates a Java dump.
JVM	Generates a dump containing current JVM memory usage.
JVMSTACK	Generates a dump containing only the Java call stack.
SYSTEM	Generates a Java system dump.