I agree that there's no need for an index. However,
I'm ambivalent on VTOC(0,1,1) vs. VTOC(0,1,14). The latter
keeps everything on cylinder boundaries.
To what advantage? HASPACE is always allocated in cylinders so it will
start on cylinder 1 regardless of the VTOC size. Making the VTOC 1
track will (marginally) improve the performance of programs which must
scan the VTOC, such as FDR and DSS.
--
Bruce Black
Senior Software Developer
Innovation Data Processing
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