On Thu, 2 May 2019 08:34:11 -0700, ste...@copper.net wrote: >In order to get around this problem, yay back when, I used a BUFFER >length keyword and specified 32760 or something like that on the first >DD statement. Then it didn’t matter which PDS was specified first.
A long time ago, it was a requirement that the first data set in a PDS concatenation have the largest BLKSIZE, or that the BLKSIZE parameter be specified on that first DD statement. I believe that requirement was removed about 25 years ago, and the way it works now is that when BPAM opens a PDS concatenation, it finds the largest BLKSIZE in the concatenation and uses that when allocating buffers. -- Tom Marchant ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
