At 19:23 -0400 on 08/11/2011, Gerhard Postpischil wrote about Re: file allocation dcb order:

Most of the dinosaurs, who had to run OS/360 despite IBM's help.
<g>  Completing a DSCB is no more difficult than setting up a JFCB.

True. You expand the mapping macro, map it over an area of the correct length, and fill in the fields. OTOH, a JFCB is usually not created from scratch but pre-filled in via a RDJFCB, then updated if needed, before being used by OPENJ.

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