Network configuration for Oracle 11g R2 – RAC using Host File – Airy’s Notes

IP Addresses and other settings using Host Files:

Storage Server Details:

paw-racstorage:

eth0 : 192.168.75.10    ---- For Public Network

gateway :

subnet : 255.255.255.0

hostname: paw-racstorage

Primary DNS :

DNS Search Path : airydba

3 Nodes Details:

Node1:

paw-racnode1:

eth0: 192.168.75.11     ---- For Public Network

eth1: 10.0.0.1          ---- For Private Network

gateway :

subnet : 255.255.255.0

hostname: paw-racnode1

Primary DNS :

DNS Search Path : airydba

Node2:

paw-racnode2:

eth0: 192.168.75.12     ---- For Public Network

eth1: 10.0.0.2          ---- For Private Network

gateway :

subnet : 255.255.255.0

hostname: paw-racnode2

Primary DNS :

DNS Search Path : airydba

Node3:

paw-racnode3

eth0: 192.168.75.13     ---- For Public Network

eth1: 10.0.0.3          ---- For Private Network

gateway :

subnet : 255.255.255.0

hostname: paw-racnode3

Primary DNS :

DNS Search Path : airydba

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VIP:

192.168.75.17

192.168.75.18

192.168.75.19

Scan IP:

192.168.75.20

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Update  /etc/hosts file on all 3 nodes :

[root@paw-racnode1 ~]# vi /etc/hosts

# Do not remove the following line, or various programs

# that require network functionality will fail.

127.0.0.1         racnode1.airydba racnode1 localhost.airydba localhost

::1         localhost6.airydba6 localhost6

#Public IPs

192.168.75.11 racnode1.airydba racnode1

192.168.75.13 racnode2.airydba racnode2

192.168.75.15 racnode3.airydba racnode3

# Private IPs

10.0.0.1 racnode1-priv.airydba racnode1-priv

10.0.0.2 racnode2-priv.airydba racnode2-priv

10.0.0.3 racnode3-priv.airydba racnode3-priv

#Virtual IPs

192.168.75.17 racnode1-vip.airydba racnode1-vip

192.168.75.18 racnode2-vip.airydba racnode2-vip

192.168.75.19 racnode3-vip.airydba racnode3-vip

#SCAN IP

192.168.75.20 racnode-scan.airydba racnode-scan

Now restart all the nodes and check the connectivity by pinging each other.

Thank you for reading… This is Airy…Enjoy Learning 🙂