W dniu 2019-02-01 o 19:50, Tom Conley pisze:
On 2/1/2019 12:22 PM, Jesse 1 Robinson wrote:
I'd like to explore this teaser post. I was (I think also) dubious
about the original comment in that it seems to disparage--or at least
discourage--mass service like RSU, which I view as a major advance in
software maintenance. Is there really wide-spread distrust of an
"unavoidable 'push'"?
.
.
A wise man once said, "If it ain't broke, don't fix it, but with z/OS,
it's ALWAYS broke!" Older guy, beard, wore a denim newsie....
This guy was not necessarily wise.
It's rare to have completely isolated, fixed systems with no changes,
including software.
Having unsupported system and changing hardware is dead end. At some
time you HAVE TO apply some servicve because you changed DASD, because
you have to migrate from SSLv3 to TLS, because you have to switch from
native SNA to Enterprise Extender, etc. etc.
In IT world changes are consstant, so there are no "fixed state" of IT
systems (with very few exceptions).
So you have to apply *some* service. Usually it's much simpler when you
apply preventive service and upgrade to new versions. Otherwise you have
problems like how to migrate from unsupported OS on unsupported CPC to
current OS/CPC.
My €0.02
--
Radoslaw Skorupka
Lodz, Poland
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