Dumpster is a freeware utility that dumps the internals of IBM i spooled files and print resources.


Now you can use the same tool we use to inspect a spooled file's or print resource's internals. The output is not pretty but with it you can gain insight into the inner workings of IBM i spool support. This can be useful for increasing printer through put or determining the exact effect of various DDS keyword combinations.

Dumpster supports most of the IBM i spooled file print data streams:

*SCS SNA Character String.
*IPDS Intelligent Printer Data Stream.
*AFPDS Advanced Function Presentation Data Stream.

Dumpster generates the following formatted dumps:

*ATTRIB The spooled file's complete attributes, equivalent to WRKSPLFA on steroids.
*RSCLST A list of external resources referenced by the spooled file. This is the output of IBM i's QGSLRSC API.
*DTASTR The raw data stream in readable form.
*BUFFER Complete information on the spooled file's buffers. This is the output of IBM i's QSPGETSP API for format SPFR0200.

The product includes work-a-likes for the IBM i Work with Spooled File (WRKSPLF) and Work with Output Queue (WRKOUTQ) commands. The work-a-likes allow you to display a list of spooled files and process them by entering an option number.

Product Support

Gumbo products include a range of standard features that make them easy to use, easy to manage, and easy to live with:

For additional information see: Answers to the most frequently asked general product questions.


Dumpster is only available on the web. To receive the product, download it now.

Prices (USD)

Dumpster is free. By using it however, you are agreeing to be bound by our license agreement.