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Re: [nv-l] After 6.03 patch install

To: nv-l@lists.tivoli.com
Subject: Re: [nv-l] After 6.03 patch install
From: "Leslie Clark" <lclark@us.ibm.com>
Date: Tue, 5 Mar 2002 11:18:10 -0500
I have not seen a performance problem with it, and this
system has moderately heavy trap flows. What I do see
is extra chatter in nvcorrd and actionsvr logs, but those
logs manage themselves, so it is not a problem.

Cordially,

Leslie A. Clark
IBM Global Services - Systems Mgmt & Networking
Detroit



                                                                                
          
                    netview@toddh.                                              
          
                    net (Todd H.)        To:     James Shanks/Raleigh/IBM@IBMUS 
          
                                         cc:     nv-l@lists.tivoli.com          
          
                    03/04/02 06:31       Subject:     Re: [nv-l] After 6.03 
patch install 
                    PM                                                          
          
                    Please respond                                              
          
                    to nv-l                                                     
          
                                                                                
          
                                                                                
          



"James Shanks" <jshanks@us.ibm.com> writes:

> What you are seeing is now entirely normal and is a result of changes
that
> were made for the security APAR IY21527.
>
> The recommended method to disable it all is to create a file called
> /usr/OV/bin/netnmrc.pre  and in it put the line:
>         export AdditionalLegalTrapCharacters=disable
>  Then either reboot or ovstop all the daemons (ovstop nvsecd) and restart

> them using /etc/netnmrc (AIX) or /etc/init.d/netnmrc (Solaris).
> This is all documented in the e-fix for the APAR.  and was carries over
> into the  7.1 Release Notes, but was left off of the 6.0.3 Release
> Notes.

Has anyone encountered performance problems related to this?

W're running 6.0.3 under aix 4.3.0 and have noted some machines nearly
grinding to a halt in terms of trap processing after the 6.0.2 (w/o
security patch) -> 6.0.3.  What is noted is a tremendous lag from when
AIX receives it and logs it via /var/adm/smv2/log/smtrap.log when it
appears in /usr/OV/log/trapd.log or the nvevents window.  Rebooting or
recyling nvcorrd seems to help a good deal, but it eventually degrades
again.

We've seen alerts get delayed several hours headed to TEC.  I'm just
curious if anyone else has noticed this.  Things seem to be okay with
AdditionalLegalTrapCharacters unset, but if we set it to pass 8-10
characters through, it seems to bog down.

I've opened a PMR on it, and we continue trying to reproduce it to
pinpoint the problem.


--
Todd H.
http://www.toddh.net/

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