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- IN
- One of the following
- Indicates that a BSAM data set opened for INOUT or a BDAM data
set opened for UPDAT is to be read only. The IN subparameter overrides
the processing option in the assembler OPEN macro instruction. Any
attempt by the processing program to write in the data set makes the
system give control to the error analysis (SYNAD) routine.
- In a system-managed tape library environment LABEL=(,,,IN) indicates
that the allocated volume will be used for read-only purposes and
that a read-compatible device can be allocated. For example, if the
volume was written using 128-track recording technology on a 3590
Model B, a 3590 Model E or 3590 Model H device can also be allocated
for this request. For more information about read-compatibility in
a system-managed tape library environment and with other device types,
see the tape device selection information in z/OS DFSMS OAM Planning, Installation, and Storage Administration Guide for Tape Libraries.
- OUT
- Indicates that a BSAM data set opened for OUTIN or OUTINX is to
be written in only. The OUT subparameter overrides the processing
option in the assembler OPEN macro instruction. Any attempt by the
processing program to read the data set makes the system give control
to the error analysis (SYNAD) routine.
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z/OS MVS JCL Reference
Copyright IBM Corporation 1990, 2014