On Tue, 27 Jul 2010 15:42:57 -0400, Kirk Talman wrote: >> Or imagine my astonished dismay the first time I allocated a member with >DISP=(OLD,DELETE) and watched the entire PDS vanish. > >In the early 1970s, at a bank using MVT on 370/155, soon after DOS-OS >conversion, all procs were stored in SYS1.PROCLIB. Excessively neat >programmer deleted a member using that technique. System was unbootable. > >When the system came back after the sysgen (no backup res pack!), an >APPL.PROCLIB was created and all SYS1 datasets were password protected. >Ops was not given the password. > >So in 40 yrs, the same design flaw has bit how many people/shops? > But none of those should perceive a problem, since the behavior is documented.
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