OLSNODES provides information related RAC nodes.

1. List of nodes in the cluster

olsnodes
prod54-1
prod55-1

2.Nodes with node number

olsnodes -n
prod54-1 1
prod55-1 2

3.Node with vip

olsnodes -i
prod54-1 prod54-1-vip
prod55-1 prod55-1-vip

4. Nodes with status

olsnodes -s -t
prod54-1 Active Unpinned
prod55-1 Active Unpinned

 5.Leaf or Hub

olsnodes -a
prod54-1 Hub
prod55-1 Hub

 6.Getting private ip details of the local node

olsnodes -l -p
prod54-1 162.168.1.1,162.168.2.1

7. Get cluster name

olsnodes -c

prodd-cluster