If you want to create a source file with data description specifications (DDS), use the Create Physical File (CRTPF) or Create Logical File (CRTLF) command.
If you want to create a source file for which you need to define the record format, use the CRTPF or CRTLF command. If you create a source logical file, the logical file member should only refer to one physical file member to avoid duplicate keys.
|...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8 A* R RECORD1 A F1 6S 2 A F2 6S A F3 92A