On Oct 17, 2007, at 1:22 PM, Skip Robinson wrote:
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.
.
Skip,
That is interesting as we were early ship for PSF and we had our
hands full with PSF PTF's but, I don't recall of a single JES2 issue
(my memory is fair in this area) I was on the phone daily with the
PSF level 2 people and we got to know each other pretty well. So I
think I would have remembered any JES2 issues or are you talking pre
PSF?
Ed
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