So perhaps what would be more desirable would be an alternative to JCL. But that's not likely. I can and do use Dovetailed Technologies' Co:Z to run local UNIX shell commands and scripts in a job. So I can just continue to use that. In any case, as you pointed out about JES3, there are the automated job restart packages such as CA-11 which would die a horrible death if JCL is changed too much.
I know I'm off topic a bit, but I wonder what UNIX shops use to do things which CA-11 does does for batch? Or is it like in the olden days where the restart is manual or built into the script itself? This lack of automated restart was a major "clang!" when a vendor was touting a conversion from z/OS to Windows. They promised to convert all JCL to some scripting package. On Wed, 2011-01-12 at 17:51 -0600, Paul Gilmartin wrote: > On Wed, 12 Jan 2011 12:21:35 -0600, Avram Friedman wrote: > > > >So why did Amdahl design a plug compatable copy of what was then a known > >bad design? Amdahl is often quoted as saying "No one would buy a bigger, > >faster, more cost effective machine if they had to re-write all there JCL" > > > And yet, some are buying other machines on the premise that > they're " bigger, faster, [or] more cost effective" (frequent > topic on this list). And, as you say, they're not rewriting > all their JCL; they're discarding it and saying, "Good riddance!" > > But, to the OP: More sophisticated flow control such as > looping is totally contrary to the JCL paradigm which > presumes the complete static analysis of resource requirements. > Consider particularly JES3 which presumes that every job > step will be executed, regardless of COND or IF. > > -- gil > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: GET IBM-MAIN INFO > Search the archives at http://bama.ua.edu/archives/ibm-main.html -- John McKown Maranatha! <>< ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
