z/OS DFSMS Using Data Sets
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Selecting Record Formats for Non-VSAM Data Sets

z/OS DFSMS Using Data Sets
SC23-6855-00

This topic covers the following subtopics.
Topic
Format Selection
Fixed-Length Record Formats
Variable-Length Record Formats
Undefined-Length Record Format
ISO/ANSI Tapes
Record Format—Device Type Considerations

This topic discusses record formats of non-VSAM data sets and device type considerations. Records are stored in one of four formats:

  • Fixed length (RECFM=F)
  • Variable length (RECFM=V)
  • ASCII variable length (RECFM=D)
  • Undefined length (RECFM=U)

For information about disk format, see Direct Access Storage Device (DASD) Volumes.

Parent topic: Non-VSAM Access to Data Sets and UNIX Files

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