A few questions for the VSAM experts here. From memory, for a non-vsam data set the primary space request can be split into up to 5 physical extents. This can be avoided by specifying CONTIG on the SPACE keyword. There is no CONTIG equivalent for VSAM data sets. Can the primary space allocation be split as well? If so, is there some way to avoid it? (use an empty volume 😊). Does the SMS storage class option Guaranteed_Space affect things?
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