Identifying the public virtual IP addresses for use by Oracle


Identifying the public virtual IP addresses for use by Oracle
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Identify separate public virtual IP addresses for each node in the cluster. Oracle requires one public virtual IP address for the Oracle listener process on each node. Public virtual IP addresses are used by client applications to connect to the Oracle database. Oracle Clusterware manages the virtual IP addresses.

The IP address and the corresponding host name should be registered in the domain name service (DNS) for each public network interface. Alternatively, an entry for the virtual IP address and virtual public name can be placed in the /etc/hosts file as shown in the following example:

10.182.79.239 galaxy-vip
10.182.79.240 nebula-vip

The /etc/hosts file on each node of the cluster should have these entries.

Oracle recommends that the public node name for the virtual IP address be in the following format hostname-vip. For example, galaxy-vip.

Note:

The public node name (in other words, the alias for the virtual IP address) for the nodes must be different from the host's current fully qualified domain name (FQDN).