Then that would either be April 1988 or December 1988, depending on whether DFP 3.1 shipped with MVS/ESA 3.1.0 or 3.1.0e.
Cheers, Martin Martin Packer, zChampion, Principal Systems Investigator, Worldwide Banking Center of Excellence, IBM +44-7802-245-584 email: martin_pac...@uk.ibm.com Twitter / Facebook IDs: MartinPacker Blog: https://www.ibm.com/developerworks/mydeveloperworks/blogs/MartinPacker From: Ed Gould <edgould1...@comcast.net> To: IBM-MAIN@listserv.ua.edu, Date: 07/23/2013 05:39 AM Subject: Re: BLKSIZE=3120 Sent by: IBM Mainframe Discussion List <IBM-MAIN@listserv.ua.edu> Jim, Good memory. My memory is a bit different (not by much though). DFP 3.1 first offered SDB TSOe (I think) at 2.1 ++ many PTF's for Rexx . I recall having not to implement XA for REXX (not being fully ready and SWA (above) not being fully supported by vendors. In one case I had to change the (CA's) source code and the other had to wait for a ZAP from Compuware. I was not a happy camper and was calling the vendors daily for an update. Put back my installation by about a month. I had egg on my face at work. Ed On Jul 22, 2013, at 9:03 PM, Jim Mulder wrote: >> Long prior to the advent of SDB, I had formed the habit of omitting >> BLKSIZE in my Rexx EXECs. The Rexx function library was smart: >> it chose good BLKSIZEs and/or I didn't much care about fractional >> deviations from absolute optimality. And, for all I knew (and didn't >> care) it adapted well to different device types. > > If I may quibble a bit with the reference to "Long prior to the > advent > of SDB": > > REXX on MVS was introduced in TSO/E Version 2.1 for MVS/XA and > MVS/ESA. > I don't remember exactly when that was shipped, but I think it > would have > been in the > 1987-1988 timeframe. > > I don't remember exactly when SDB was introduced, but I found an > APAR OY19694 which was opened on January 5, 1989 for an SDB- > related > issue. > > Jim Mulder z/OS System Test IBM Corp. Poughkeepsie, NY > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN Unless stated otherwise above: IBM United Kingdom Limited - Registered in England and Wales with number 741598. Registered office: PO Box 41, North Harbour, Portsmouth, Hampshire PO6 3AU ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
