Planning your storage requirements

Make sure that there is enough storage to accommodate QMF programs and the QMF reports that users create. QMF storage requirements are as follows:

• QMF modules that can run in a 31-bit addressing mode require 2.8 MB.
• QMF modules that must run in a 24-bit addressing mode require 52 KB.
• Minimum storage for users to execute QMF queries and hold QMF report data is between 0.5 and 1.0 MB. Your specific requirements can be larger depending on the size of your report and the report formatting options used.

As an example, if you run in a standard TSO environment with ISPF and GDDM, you need approximately 6.0 MB of storage.

You might require more than 1 MB of storage if you use competing options for a report, or if a query returns a large amount of data. You can allocate storage for both purposes above 16 MB.

You can further reduce the size of the region by placing ISPF and GDDM into the pageable link pack area (PLPA), which increases the common area accordingly.