I've never worked with JES3. What does it offer in "disk and tape control" that 
DFSMS doesn't? Or, are we talking a different kind of control?

> -----Original Message-----
> From: IBM Mainframe Discussion List [mailto:[email protected]]
> On Behalf Of Skip Robinson
> Sent: Friday, January 22, 2016 9:45 AM
> To: [email protected]
> Subject: Re: Compile error
> 
> As we saw in the recent thread on converting from JES3 to JES2, JES3 from the
> beginning provided function--especially in the area of data device control--
> that was never envisioned for JES2. I think that most of the recent
> convergence of function in the two products mostly involves what we think of
> as classic 'job control'. And the motivation for much of that convergence is 
> to
> 'elevate' function from JES to the BCP so that code has to be developed only
> once. JES3's historic foray into disk and tape control, while useful for shops
> that make use of it, has little to do with 'controlling jobs' in the original 
> sense.
> 
> .
> .
> .
> J.O.Skip Robinson
> Southern California Edison Company
> Electric Dragon Team Paddler
> SHARE MVS Program Co-Manager
> 323-715-0595 Mobile
> [email protected]
> [email protected]
> 
> 
> > -----Original Message-----
> > From: IBM Mainframe Discussion List [mailto:IBM-
> [email protected]]
> > On Behalf Of Staller, Allan
> > Sent: Friday, January 22, 2016 09:02 AM
> > To: [email protected]
> > Subject: [Bulk] Re: Compile error
> >
> > <snip>
> > Meanwhile there did emerge a 'JES3', but it was not an evolutionary
> > descendant of JES2. Both products have coexisted, albeit uneasily, for
> decades.
> > We used to imagine a JES5 or JES6 (depending on one's arithmetic
> proclivity)
> > that would somehow combine the best features of both products, but it's
> > almost certainly DOA. ....
> > </snip>
> >
> > Actually this seems to be happening. Witness the recent merging of JES3
> and
> > JES2 capabilities.  8 char job classes in JES2, JES2/JES3 using common
> SAPI.
> > SDSF (formerly JES only) obtaining JES3 capabilities.
> > Dependent Job Control language in JES2 (2.2).
> >
> > And I am sure there are others.  It looks like IBM is attempting to create
> "THE
> > JES" from the capabilities of JES2 and JES3.
> 
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