Change the oracle cluster NIC (Changing a Network Interface)

Zookeeper
Change the oracle cluster NIC (Changing a Network Interface)

If the NIC name, ip address, gateway, and subnet mask remain unchanged before and after the NIC, no additional operations are required at the cluster level!

Next, use the new Nic name after the NIC is changed.

1. Ensure that all cluster nodes are active
Olsnodes-s

[Grid @ vmrac1 ~] $ Olsnodes-s
Vmrac1 Active
Vmrac2 Active

2. Make sure that the new replacement Nic has been configured on the server.
$/Sbin/ifconfig ..

3. Add the new Nic to the Cluster
Oifcfg setif-global if_name/subnet: cluster_interconnect

Oifcfg setif-global "eth */192.168.0.0: cluster_interconnect

4. After adding a new Nic, remove the previous configuration information.
Oifcfg delif-global if_name/subnet
For example:
$ Oifcfg delif-global eth1/10.10.0.0

5. Verify the current configuration information:
Oifcfg getif

For example:
$ Oifcfg getif
Eth2 10.220.52.0 global cluster_interconnect
Eth0 10.220.16.0 global public

6. Restart the Cluster
# Crsctl stop crs

7. Delete NICs at the OS level
$ Ifconfig down

8. Restart the Cluster
# Crsctl start crs

If CLUSTER_INTERCONNECTS is used, you must modify the parameter accordingly.