Confusion on the primary space allocation of VSAM.

[Priyank Chopra]

Hello all,

Some VSAM files have a primary allocation of 400 cylinders. Secondary of 450 cylinders. When I ran a LISTCAT on these VSAMS, primary extent displayed in LISTCAT, shows 12000 for primary, secondary extents are 6750 tracks which is correct for 450 cylinders. Can someone tell my why this might happen? Datasets are SMS managed.

Thanks

[enrico-sorichetti]

could be a consequence of the "EXTENT CONSOLIDATION" process ?
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