On Tue, 5 May 2015 07:46:33 -0500, John McKown wrote: > >> But it's inappropriate that the OS create a new data set when it knows >> that it will be deleted immediately, never used. > >Is it "inappropriate"? Suppose, just for the sake of argument, that I am >an clever JCL coder. I know that all the NEW allocations for permanent data >sets in the job will amount to some number of cylinders. Now, I don't want >the job to fail some steps into the job due to lack of disk space. So what >I do is create a initial IEFBR14 step which allocates some number of >permanent DSNs of appropriate size with DISP=(NEW,DELETE). What I am >hoping is that if sufficient space is _NOT_ available, that I will get a >JCL error very early in the processing, rather than later. > One might make the same argument against bypassing HRECALL, yet the IBM designers have chosen to bypass.
-- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
