In a recent note, Bruce Black said: > Date: Fri, 13 Jan 2006 14:55:37 -0500 > > Here we go again. HFS (and PDSE) are not VSAM Linear. They do share > some characteristcs of Linear, and (I believe) the Media Manager is the > low-level access method used for most VSAM and HFS/PDSE, but HFS/PDSE > shares no other VSAM code. > > at one time, PDSE and HFS shared a lot of code, but I understand that > they were split some years ago for performance and functionality > reasons. They do share a similar format. > > A duck and a goose share a lot of characteristics, but only a city boy > would think they are the same > Pay no attention to the man behind the curtain (ISPF 3.4) who would tell us that HFS has DSORG=PO. I recognize that as a fiction. They had to have some value for DSORG, and didn't care to invent a new one. In fact, calling PDSE DSORG=PO quite violated any prior notion of DSORG, but to do otherwise would have broken too many things.
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