before 11gR2 RAC installation, does the port needs to be open between the 2 nodes which will be RACed? also does it need to be able to ping each other between the nodes for scan name? os is linux x86_64 redhat. Thanks!
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before 11gR2 RAC installation, does the port needs to be open between the 2 nodes which will be RACed? also does it need to be able to ping each other between the nodes for scan name? os is linux x86_64 redhat. Thanks!
You should really read the 2-day real application clusters guide from oracle. Basically you need the following for each node:
In addition you also need 3 scan addresses.
The scan addresses and virtual-ip must not be pingable before you start the clusterware installation. The public and the private must be pingable.