IEBCOPY does not support partitioned data sets with RECFM=VS or RECFM=VBS. (Do not confuse this with a unload (sequential) data set which always has a spanned RECFM.)
The input and output DCB parameters do not demand that logical records be reblocked or deblocked.
The severity is 0.
Execution continues as if the data sets were RECFM=U. An I/O error may occur.
Use an application program that has been coded to handle spanned records to process the data set.
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