RE: RAC changing network interface configuration

In this case it appears that the interface to IP association is incorrect on node 2 - the OCR itself is OK and should not require changing. The OCR is shared and you should get the same results from oifcfg getif from either node (would be a good first step to execute and verify). Also verify that there are no node specific configuration set in the OCR (olsnodes and use the -nodename (I think) of oifcfg to verify)  

In this case it would appear that you should stop nodeapps and crs on node 2 and have that corrected i.e. plumb the correct IP on the correct interface on node 2.  

Regards,

-Krish

Krish Hariharan

President/Executive Architect, Quasar Database Technologies, LLC

http://www.linkedin.com/in/quasardb

From: oracle-l-bounce_at_freelists.org [mailto:oracle-l-bounce_at_freelists.org] On Behalf Of Dan Norris
Sent: Tuesday, March 04, 2008 9:25 PM
To: binhpham15_at_hotmail.com
Cc: oracle-l_at_freelists.org
Subject: Re: RAC changing network interface configuration  

I don't have enough time to write a detailed process, but you're already in the right neighborhood. The oifcfg utility has another argument (setif) that can be used to change the interface configuration. You'll find some notes on using oifcfg in the documentation, so I suggest you start there.

Dan

Binh Pham wrote:  

I have 11g RAC setup on Oracle Linux.

When I booted up the servers, node one has:

1. eth0 as a clustering_Interconnect (192.168.1.x)
2. eth1 as Global Public (137.78.225.x)

However, node two has the opposite:

1. eth0 as Global Public (137.78.225.x)
2. eth1 as clustering_interconnect (192.168.1.x)

I used this command to display the information from the OCR file:

>oifcfg getif

eth0 192.168.1.0 global cluster_interconnect eth1 137.78.225.0 global public

The question is, is there a way to change the assignment of these network interfaces of one server to match the other server?

Please outline the procedure in details or point me to a document on how this is done.

Thanks.

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