Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Programming Guide


Allocation of buffers for QSAM files

z/OS DFSMS automatically allocates buffers for storing input and output for a QSAM file above or below the 16-MB line as appropriate for the file.

Most QSAM files have buffers allocated above the 16-MB line. Exceptions are:

related concepts  
Storage and its addressability


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