I'm not sure what IBM's PDS design objectives were in the early '60s, but I expect that one was to store multiple data sets per track. Of course, these would tend to be small data sets. I expect that IBM assumed that very few customers, if any, had very large members. Therefore when they designed a replacement, PDSE, handling large members was not likely to be a high priority. Of course, that does not help you, but I can easily see the PDSE designers asking, his member has how many lines?
> -----Original Message----- > From: IBM Mainframe Discussion List [mailto:ibm-m...@bama.ua.edu] On > Behalf Of Pinnacle > Sent: Sunday, July 25, 2010 9:42 PM > To: IBM-MAIN@bama.ua.edu > Subject: Another reason to hate PDSE's > > Some months ago, John Ehrman posted asking why we don't like PDSE's. I > just > found somehting that blows my mind, a ridiculous limitation in PDSE's > that > all by itself militates against their usage. > > I'm running a utility that outputs IEBUPDTE cards to create a PDS. > When > running the cards, we hit the maximum size of a PDS, 65535 tracks. Any > attempt to go beyond that gets us an E37 abend. > > So simple solution, right? We just go PDSE. 19 members into the > IEBUPDTE > cards is a member with 68,994,447 records. This member causes an > IEC036I > 002-A8 abend, Looking that up says that the maximum number of lines > that > can be held in a PDSE member is exceeded. > > Let that sink in a little. That 68M line member was easily stored in > the > PDS before the E37, but PDSE can't handle it. PDSE can't support > members as > big as PDS. Are you #$%ing kidding me? > > PDSE's are a joke. They've been around for over 20 years, and they > still > don't have all the bugs out. This limitation is ridiculous, > considering > that PDSE's were supposed to address all the shortcomings of PDS. > GUESS > THEY MISSED THIS SHORTCOMING OF PDSE's!!!!!!!!!! WAY TO GO IBM!!!!!!! > > Sheesh, > Tom Conley > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@bama.ua.edu with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
