Hi Gil,

I would suggest you install and run the IBM Health Checker. Don't wait for
the new and improved Health Checker go install and run the existing one now.


I would encourage anyone who has not already to download it and run it. This
takes less than 30 minutes and one good finding justifies the time.

http://www.ibm.com/servers/eserver/zseries/zos/downloads/

I now use Health Checker after every IPL and configuration change. We
recently migrated from ESCON to FICON CTC's for XCF. I ran health checker
after each stage and at one point it caught a procedure error which had
caused us to not have the communication we expected defined within the
Sysplex. I use it to verify the changes or lack of to the virtual storage
map after every IPL. 

Best of all (you can forgive a lot for this) it is FREE!

Mark Brooks is one of the principal developers for XCF at the IBM
Poughkeepsie lab and has presented on XCF performance several times at
SHARE.  You can find his foils which are very detailed in the SHARE
proceedings.  Here is the abstract and a link.  You may need a userid and
password for the SHARE web site if you don't have them they can be had for
free by contacting SHARE HQ using the web form.

2843 - Planning, Tuning, and Managing XCF Signalling Resources - Part 1 of 2
Poorly configured signalling resources can cause severe problems in the
Sysplex! In this session, the speaker will describe XCF's underlying
management of the signalling resources. Building on that foundation, he will
then discuss the potential consequences of poor configurations. He will
describe how to use RMF reports and XCF display output to make inferences
about signal traffic in the Sysplex. He will also explore XCF messages
IXC431I and IXC467I, that are issued when signal delivery appears to be
stalled. This is the first of two parts, and is concluded in session 2844.

http://ew.share.org/client_files/callpapers/attach/SHARE_in_New_York/S2843mb
.pdf

One of the things Mark explained during his talk was that he took everything
he normally reviews during a health checkup or performance review for a
customer and got them to put it in Health Checker.  So running the free
health checker is getting the best practices review from the guy who owns
the code.

I hope that helps.

        Best Regards,

                Sam Knutson, GEICO
                Performance and Availability Management
                (office)  301.986.3574

"Think big, act bold, start simple, grow fast..."

-----Original Message-----
From: IBM Mainframe Discussion List [mailto:[EMAIL PROTECTED] On Behalf
Of Gil Peleg
Sent: Monday, September 05, 2005 8:56 AM
To: [email protected]
Subject: Finding XCF transport class users

Hi all,
 In our COUPLExx member we have 3 CLASSDEF definitions for 3 different
classes with 3 different CLASSLENs for GROUP(UNDESIG).
In RMF XCF Activity report I see that one of the transport classes has a
high value for %BIG (43) with 100%OVR.
This transport class is not the DEFAULT, and we do not have any explicit
groups/signalling paths defined to it.
 How can I find out who is trying to use this transport class?
 Thanks a lot,
Gil.

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