Change Network settings for Private Interconnect in 11g R2 RAC

To change the network adaptor name from eth0 to bond0 for private interconnect, this is what needs to happen:

1. Stop Oracle Clusterware on all the Nodes

# ./crsctl stop crs

2. Start the bond0 Network interface on all the nodes.
# ifup bond0

3. If the eth0 interface is no longer available, the below command will only start the Oracle High Availability Services and other service will still be down.
# crsctl start crs

4. Now lets change the network adaptor name in the gpnp profile so that the CRS will know which network adaptor to use to initiate the private interconnect traffic

# ./gpnptool edit -p=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -o=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -ovr -prf_sq=2 -net2:net_use=cluster_interconnect -net2:net_ip=172.20.15.0 -net2:net_ada=bond0

# ./gpnptool sign -p=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -o=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new -ovr -w=cw-fs:peer

# ./gpnptool put -p=/u01/app/11.2.0.3/grid/gpnp/testserver/profiles/peer/profile.xml.new

 

5. Put the changes in the OCR as well
# ./oifcfg setif -global bond0/172.20.15.0:cluster_interconnect

6. Stop the start the clusterware
# ./crsctl stop crs
# ./crsctl start crs

7. Start the clusterware on all the other nodes as well
# ./crsctl start crs