How to Change Private IP in RAC Cluster (19c) on OEL 8

 How to Change Private IP in RAC Cluster (19c) on OEL 8

In this post, we will see how to change the Private IP of a 2-Node Oracle. 

The purpose of this note is to describe how to change or update the private network (cluster_interconnect) information in Oracle Clusterware.

./oifcfg getif

ens192  10.92.27.0  global  public

ens224  192.168.221.0  global  cluster_interconnect,asm

ens161  192.168.27.8  global  cluster_interconnect,asm

[root@DC2-GTDB-V-01 bin]# 

To set any interface

./oifcfg setif -global ens161/192.168.27.0:cluster_interconnect,asm

To Delete any interface

./oifcfg delif -global ens224/192.168.221.0

Ref:

How to Modify Private Network Information in Oracle Clusterware (Doc ID 283684.1)