I saw the original posting about IFCC's and my first thought was that in
the "olden" days, operations or a CE would start looking for bent pins
in a bus and tag cable pair. I was afraid mentioning that, however,
would show my age.
Jim
Alan Altmark wrote:
If you're getting them on all 4 chpids, then there must be something
common to all 4 chpids that is causing the problem:
- Are all 4 chpids plugged into the same card on System z?
- Is your director/switch logging any errors?
- Did someone yank on a group of cables, damaging them or stressing the
connectors?
Back in the day, an IFCC on a copper channel was usually the result of a
bent pin or poorly seated connector. That is, electrical signals were not
flowing properly. If the light isn't shining properly, you can get an
IFCC on an optical cable. The h/w guys will have to help you with that.
Alan Altmark
z/VM Development
IBM Endicott
--
Jim Bohnsack
Cornell University
(972) 596-6377 home/office
(972) 342-5823 cell
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