z/OS DFSMS Using Magnetic Tapes
z/OS DFSMS Using Magnetic Tapes
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Positioning after header label 2 z/OS DFSMS Using Magnetic Tapes SC23-6858-00 |
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Unless user header labels are to be processed, the system positions the tape past the tape mark immediately after processing the HDR2 label. All labels that follow the HDR2 label are bypassed, and the tape is positioned at the first data set record. Note: If the HDR2 label is missing, processing will continue with
the assumption that it is not needed. If the JFCB/DCB merge function
needs it because of missing data set characteristics, the OPEN will
abnormally terminate.
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 Copyright IBM Corporation 1990, 2014 |
