Oracle Tips by Burleson

Oracle10g Grid Computing with RAC
Chapter 6 - Install, Configure and Database Creation

CRS Installation

Also note that the ports used by the services are shown at the time of running root.sh. The ports range from 49895 to 49898, and they are used for various services.

Using ports: CSS=49895 CRS=49896 EVMC=49897 and EVMR=49898

netstat command shows ports listening.

[root@node2 /]# netstat | grep 4989
tcp  0 0 private-link1:32813     private-link2:49897     ESTABLISHED
tcp  0 0 private-link1:49895     private-link2:32773     ESTABLISHED
tcp  0 0 private-link1:49897     private-link2:32803     ESTABLISHED

Thus each node will have in the cluster will have the CRS Home to enable the clusterware to operate on each node.

So far we have described the CRS installation and preparation of Cluster Environment in a typical Linux environment. The next step would be to install the Oracle Database software with RAC option on the selected cluster nodes.