On Thu, 4 Jun 2015 12:33:00 -0400, Shmuel Metz (Seymour J.) wrote: > >I would expect bot[h] to fail, due to lack of DCB information. I would >expect the secomd the allocate two versions of &PFX..CBTINDEX unless >they're SMS, but don't see how that would affect the RC. > In fact, looking at allocation messages, the VOL=REF= referback caused both to refer to the same DSN on the same volume. The passed input DSN presumably has DCB information, and I assume since one of them works that in at least that case IEBUPDTE either hard-codes the needed information in the DCB or supplies it in the OPEN exit. Might it chase control blocks and fill in the information for DISP=MOD but presume it exists for DISP=OLD?
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