On Mon, 27 Oct 2014 06:53:51 -0500, John McKown wrote:

>Summary of Key Functions in z/OS V2.1
>http://www.redbooks.ibm.com/abstracts/tips1217.html?Open
>
>​DFSMS Technical updates.​
>http://www.redbooks.ibm.com/Redbooks.nsf/RedbookAbstracts/sg248190.html?Open
>
>What grabbed my eye in this was a new PDSE version. If you create a PDSE as
>a version 2 PDSE, then you can retain "old" generations of a PDSE member
>and retrieve them by relative or absolute generation number. Shades of
>PANVALET and Librarian which kept "archive levels". Or, IIRC, how VMS kept
>files with "version numbers" in them akin to GDGs.
>  
Will there be syntactic extensions to DYNALLOC, ALLOCATE, BPXWDYN
JCL DD, Binder INCLUDE, other HLL APIs ... to support accessing archival
generations via BPAM/QSAM, or will it be necessary to "retrieve" them
into other data sets to process them?  What will be the process if a
programmer wishes to perform an assembly and link with a snapshot
of the respective SYSLIBs as they existed six months earlier?

Read-only, I hope.

-- gil

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