DUMP command

The DUMP command requests a system dump (SVC dump) of virtual storage. The SVC dump is stored in a direct access data set. The data set may be either a pre-allocated dump data set named SYS1.DUMPxx, or an automatically allocated dump data set named according to an installation-specified pattern.

You should request only one dump at a time on one system. Otherwise, you might have trouble determining the dump request that causes a particular IEE094D message. Also, a system writes only one SVC dump at a time, so it does not save anything to make several requests at once.

Hiperspace™ information is not included in SVC dumps. For more information about hiperspace data in dumps, see z/OS MVS Diagnosis: Tools and Service Aids.