On Wed, 12 Nov 2008 20:03:03 -0500, Gerhard Postpischil wrote: >Tom Marchant wrote: >> Mr. Gilmore has repeatedly asserted that DUMMY is different from >> NULLFILE, as for example, > >That statement used to be true, though not for the reasons Mr. >Gilmore cited. For OS/MVT (and possibly MFT), a DSN=NULLFILE >would fail unless it also carried a UNIT and VOL specification. >I don't recall when the extra check for NULLFILE was added to >the interpreter. > Hmmm. A colleague eschews DSN=NULLFILE because he believes that the initiator issues an ENQ for NULLFILE. Is that also in the "statement used to be true" category?
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