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How to change private interconnect details in oracle grid - DBACLASS DBACLASS

Below are the steps for changing private interconnect details in oracle GRID 12c.In our case we will change the interface name to eth8.

oracle clusteringintermediate

by OracleDba

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1. Check the interface details : ( from root user)

Code/Command (click line numbers to comment):

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[root@dbhost1 ~]$ $GRID_HOME/bin/oifcfg getif
bond0  20.18.64.0  global  public
eth7  162.168.76.0  global  cluster_interconnect,asm.  --- > This is the private interface

2. Now add the interface name: ( Do it from only one node)

In our case, we are only changing the interface name to eth8, So we have kept the ip same. If your network team is providing new private ip , then you update the ip accordingly.

Code/Command (click line numbers to comment):

[root@dbhost1 bin]# ./oifcfg setif -global eth8/162.168.76.0:cluster_interconnect,asm

3. Check the getif output:

Code/Command (click line numbers to comment):

[root@dbhost1 bin]# ./oifcfg getif
bond0  10.18.64.0  global  public
eth7  162.168.76.0  global  cluster_interconnect,asm
eth8  162.168.76.0  global  cluster_interconnect,asm
[root@dbhost1 bin]#

4. Disable and stop the crs( on both nodes)

Code/Command (click line numbers to comment):

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[root@dbhost1 bin]#./crsctl stop crs
[root@dbhost1 bin]#./crsctl disable crs

5.Now request network Team to change the interface name:

Make sure ifconfig command is showing the new interface details also.

Code/Command (click line numbers to comment):

$ ifconfig -a

6. Start and enable the crs:[ Do on both the nodes]

Ensure both the clusters are up and running fine.

Code/Command (click line numbers to comment):

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[root@dbhost1 bin]#./crsctl start crs
[root@dbhost1 bin]#./crsctl enable crs

7. Delete the old interface:

Code/Command (click line numbers to comment):

[root@dbhost1 bin]# ./oifcfg delif -global eth7/162.168.76.0

[root@dbhost1 bin]# ./oifcfg getif
bond0  10.18.64.0  global  public
eth8  162.168.76.0  global  cluster_interconnect,asm

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