BSF (Backward Space File)

Purpose
Move the tape backward one or more tape files.
Usage notes
A tape file consists of blocks of data delimited by a tape mark. For this function, a tape label set is also considered a file. The tape stops after the specified number of tape marks has been read or the load point has been reached. The tape is positioned immediately before a tape mark or at the load point.

Specify a DDNAME for the tape.

Options
None.
Related functions
BSR
Move the tape backward one or more records
FSF
Move the tape forward one or more files
FSR
Move the tape forward one or more records
REW
Rewind a tape to its load point
RUN
Rewind a tape and unload it
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Syntax

                                          .-NFILES=1------.   
>>-BSF--+-----------+--+-INPUT=ddname--+--+---------------+----><
        '-LABEL=BLP-'  '-OUTPUT=ddname-'  '-NFILES=nfiles-'   

ddname
Refers to a DD or TSO ALLOC statement.
LABEL=BLP
Specifies that bypass label processing is used. This parameter must be specified with the first Z Data Tools function that uses the tape. For BLP processing requirements, see “Customizing the Security Environment” in the Z Data Tools Customization Guide.
nfiles
Number of tape files to be spaced backward. The maximum is 99 999; the default is 1.