Running a secondary JES2 to support printing is a venerable tradition. Back
in the day when 3800 printers first came out, the device support embedded
in JES code was flaky. Keeping the subsystem running was a nightmare.
Hardware problems--or software problems that failed to handle the hardware
properly--caused frequent JES2 abends. In my shop we ran a secondary JES2
solely for the purpose of managing the 3800s. When that JES2 went down, the
rest of the world was sheltered from the disruption. It was years before we
felt confident to revert to a single JES2.
The wrinkle of SDSF level was not an issue then. Setting up a 'secondary
SDSF' is not a big deal as others have described. I've never had to use
STEPLIB for down-level compatibility, but I like the idea of limiting
secondary access to as few people as possible if only to avoid confusion.
Updating the old software would be nice, but I think you can run the shop
with what you have.
.
.
JO.Skip Robinson
Southern California Edison Company
Electric Dragon Team Paddler
SHARE MVS Program Co-Manager
626-302-7535 Office
323-715-0595 Mobile
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> -----Original Message-----
> From: IBM Mainframe Discussion List
> [mailto:[EMAIL PROTECTED] On Behalf Of Jousma, David
> Sent: Wednesday, October 17, 2007 12:13 PM
> To: [email protected]
> Subject: Re: embarressing SDSF question.
>
>
> Rather than rolling out 2 different versions of sdsf to the world, why
> not have the output from the secondary(backleveled JES) all routed via
> NJE to the primary jes? Then you would only need to logon via special
> proc to debug problems(hopefully not too often).
> ________________________________________________________
> Dave Jousma
Actually, nothing runs on the secondary JES2. We have some very old
software which takes SPOOL output from JES2 and sends it to a
specialized server. This software cannot tolerate the z2 level of the
JES2 checkpoint, only the R4 format. So I need to run the z/OS 1.6 JES2
with a different set of SPOOL and checkpoint datasets so that I can have
the R4 format checkpoint. The jobs are run under the primary (1.8) JES2
and NJE'ed to the secondary JES2 so that the software can pick them up
and send the reports to that specialized server.
We're trying to justify the cost for the newer software.
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