Stand-alone dump

The stand-alone dump program (SADMP) produces a stand-alone dump of storage that is occupied by one of the following:

The stand-alone dump program and the stand-alone dump together form what is known as the stand-alone dump service aid. The term stand-alone means that the dump is performed separately from normal system operations and does not require the system to be in a condition for normal operation.

The stand-alone dump program produces a high-speed, unformatted dump of central storage and parts of paged-out virtual storage on a tape device or a direct access storage device (DASD). The stand-alone dump program, which you create, must reside on a storage device that can be used to IPL.

Produce a stand-alone dump when the failure symptom is a wait state with a wait state code, a wait state with no processing, an instruction loop, or slow processing.

You create the stand-alone dump program that dumps the storage. Use the AMDSADMP macro to produce the following: A stand-alone dump supplies information that is needed to determine why the system or the stand-alone dump program failed.

You can create different versions of the stand-alone dump program to dump different types and amounts of storage. To create the different versions, code several AMDSADMP macros by varying the values of keywords on the macros.

Before you begin, also consider reading the following topics:
This information covers the following topics, which describe how to use stand-alone dump: