For VSAM, this is available with either 1.7 or 1.8.
I cannot remember which.
I believe it was z/OS 1.4. It is called "extent consolidation" and
there is an APAR oa07405 on it with a PTF for HDZ11G0 (which was z/OS 1.4)
--
Bruce Black
Senior Software Developer
Innovation Data Processing
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