From: Drew (apt@DCS-SUCCESS.COM)
Date: Wed Jul 17 2002 - 14:32:55 EDT
I'm with the other guys as far as check the cable (I've wasted plenty of
time exactly because of that), or perhaps another IP address may be on the
network.
Quick questions:
When the symptoms are occurring, are there any other noticeable problems
with the network at all?
Also, are any connections through a serial line and if so, are they
affected?
It almost seems like the arp table may become corrupt somehow. Are all the
users local or are they coming in through vpn connections somehow?
-----Original Message-----
From: IBM AIX Discussion List [mailto:aix-l@Princeton.EDU]On Behalf Of John
F Riordan
Sent: Wednesday, July 17, 2002 11:40 AM
To: aix-l@Princeton.EDU
Subject: 7026-H50 (SAP / Oracle)
Hi All,
Any thing you can think of for me to check would be greatly appreciated.
we have a H50 running AIX 4.3.2 ML-04, Running Oracle 8.0.4, SAP R/3 -
Release 4.0B
For the past 8 to 10 months about 4 times a month the end users will notice
they can't ftp, rsh, or telnet into the server. Yet the Oracle Client
connections or any session opened prior to the problem are fine. Most of
the time it happens off hours and the system has been taken down without a
normal shutdown. IBM has recommended many patches and have also been
onsite to do a hardware diagnostics. No problems found. One other strange
thing we have noticed is that during the problem ping will respond and I
have been told "rcp" works. I have not tested this yet but we now have
some scripts in place to prove this. Ping will hang for about two minutes
but then respond again. The system has been reconfigured to bind to
itself. In hopes to solve a possible NIS problem. I have been running
xmperf and saving. The last time this happened xmperf kept on running and
reported all the activity until we had to bounce the server. Activity
shown on the replay of the log looked completely normal. Error logs are
showing nothing. IBM has taken a look at our dump files and have not had
an answer. I have also turned on Auditing and system accounting in hopes
of more information.
Any thoughts?
Thanks for your time.
John
John Riordan
Unix Systems Administrator
CSC/BIW DD(X)
Brunswick, ME 04011
207.442.1094 jriorda2@csc.com
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