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Is the GNS recommended for most Oracle RAC installations?

April 26, 2017GNS installations Oracle RAC recommended

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Is the GNS recommended for most Oracle RAC installations?

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The Grid Naming Service (GNS) is a part of the Grid Plug and Play feature of Oracle RAC 11g Release 2. It provides name resolution for the cluster. If you have a larger cluster (greater than 4-6 nodes) or a requirement to have a dynamic cluster (you expect to add or remove nodes in the cluster), then you should implement GNS. If you are implementing a small cluster 4 nodes or less, you do not need to add GNS. Note: Select GNS during install assumes that you have a DHCP server running on the public subnet where Oracle Clusterware can obtain IP addresses for the Node VIPs and the SCAN VIPs.