<br><font size=2 face="sans-serif">I had a similar situation with similar
hardware settings (IBM eSeries, SHARK, Gigabit NICs for interconnect).
What I found out was I picked both public and private NICs in VIP configuration
(GUI) and most inter-instance chattings were using the public interfaces.
After having corrected the problem (I re-installed RAC), I got much-better-performaning
systems</font>
<br><font size=2 face="sans-serif"><br>
<br>
Jizhong Wang</font>
<br><font size=2 face="sans-serif"><br>
</font>
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<br>
<br>
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<td width=40%><font size=1 face="sans-serif"><b>Kevin Hulse <kevin.hulse@placemark.com></b>
</font>
<br><font size=1 face="sans-serif">Sent by: ocfs2-users-bounces@oss.oracle.com</font>
<p><font size=1 face="sans-serif">03/22/2006 09:34 AM</font>
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<div align=right><font size=1 face="sans-serif">To</font></div>
<td><font size=1 face="sans-serif">Marcio Costa <marciopc@interativainternet.com.br></font>
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<div align=right><font size=1 face="sans-serif">cc</font></div>
<td><font size=1 face="sans-serif">"ocfs2-users@oss.oracle.com"
<ocfs2-users@oss.oracle.com>, josue@interativainternet.com.br</font>
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<td>
<div align=right><font size=1 face="sans-serif">Subject</font></div>
<td><font size=1 face="sans-serif">Re: [Ocfs2-users] RHEL4 x86_64 OCFS2
10gR2 performance</font></table>
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<br><font size=2><tt>Marcio Costa wrote:<br>
<br>
>Hi,<br>
><br>
>I have 2 IBM x346 eServers, both of them with 2 Qlogic HBAs (qla2340).
They <br>
>are connected rendundantly to a IBM DS4300 (fiber storage). I have
Oracle <br>
>10gR2 RAC installed. RHEL4 U2 x86_64. My problem is the following:<br>
><br>
>Each server works very well, if alone,ie, if the other one has not
mounted <br>
>the ocfs2 partition. But when both of them are working, the performance
goes <br>
>to hell. <br>
>For example: there is a job that, when it runs on one server alone,
takes 4 <br>
>seconds, but when I put both servers on line, it takes 3 minutes.<br>
><br>
> <br>
><br>
<br>
For starters, I would suggest poking into the system with<br>
the em dbconsole. Run ADDM for the time period in question<br>
and see what it complains about. That should at least give<br>
you some idea where the problem is.<br>
<br>
>What could it be ? Is there any conf that I could check. I was thinking
<br>
>about change the ocfs2 for other fs (gfs or other)... could it be the
case ?<br>
><br>
>Thanks in advance.<br>
><br>
>Marcio Costa.<br>
><br>
>--<br>
>Open WebMail Project (http://openwebmail.org)<br>
><br>
>_______________________________________________<br>
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>Ocfs2-users@oss.oracle.com<br>
>http://oss.oracle.com/mailman/listinfo/ocfs2-users<br>
><br>
><br>
> <br>
><br>
<br>
<br>
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