On Mon, 25 Apr 2016 11:29:38 -0400, Pinnacle wrote:
>
>... If you want to keep your tapes, you'll need to feed your
>virtual tape system with plenty of disk.
>
Or, simply, don't scratch them?
Circa z/OS 1.9 IBM changed the behavior of GETMAIN/FREEMAIN in a way that
adversely affected users who (unwittingly) accessed fields in freed storage.
IBM accommodated this bad practice by providing a compatibility switch.
(How *not* to free nodes of a linked list anchored by pointer P:
while ( P ) {
FREEMAIN(P )
P = P->NEXT }
... but it's soooo tempting! )
-- gil
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