COBOL DATA Compiler Option.

Using DATA(31) with your RENT program will help to relieve some below the line virtual storage constraint problems. When you use DATA(31) with your RENT programs, most QSAM file buffers can be allocated above the 16MB line.
When you use DATA(31) with the run-time option  HEAP(,,ANYWHERE), all non-EXTERNAL WORKING-STORAGE and non-EXTERNAL FD record  areas can be allocated above the 16MB line.
With DATA(24), the WORKING-STORAGE and FD record areas will be allocated below the 16 MB line.

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