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The limitation of a maximum of 4,294,967,296 ordinals allocated for a fixed file record type is not on the FARF format itself but instead on other aspects of TPF that cannot leverage the new addressing format to its fullest capability yet.
The maximum number of ordinals for a UFT/FTI pair is 4,294,967,296 ordinals. However, this does not mean that a fixed record type is restricted to 4,294,967,296 ordinals in a FARF6 file address. A single fixed record type can have multiple UFT/FTI pairs.
RFE 130264 (http://www.ibm.com/developerworks/rfe/execute?use_case=viewRfe&CR_ID=130264) requests additional support for greater than 4 billion ordinals for a fixed file record type by the TPFDF product.
Interesting...that was the notion that we had in our initial review of FARF6 Fixed File support, however, it looks like this limit is enforced irrespective of splits. It looks like explicit error checking was put in place in the fctb generator to limit the max RECNO allowed for a fixed face type addressed via FARF6. This led us to believe there was a limitation of the addressing format?
FCTB0141E filename(function) THE SUM OF THE RECNO VALUES FOR THE FARF6 FIXED FILE RECORD TYPE EXCEEDS THE LIMIT.
One or more RAMFIL macro statements are coded with the UFTI6 parameter specified. However, the sum of the RECNO parameter values of those RAMFIL macro statements exceeds 4,294,967,295 ordinals.
If this is not the case maybe this conversation is better suited in a PMR? or is this limitation put in place for other reasons?