Re: standby and Oracle licensing

> Failover: Nodes are configured in "cluster" with the first installed node
> acting as a primary node. If the primary node fails, one of the nodes in
> the cluster acts as the primary node. In this type of environment, Oracle
> permits licensed Oracle Database customers to run the Database on an
> unlicensed spare computer for up to a total of ten separate days in any
> given calendar year. Any other use requires the environment to be fully
> licensed. Additionally, the same metric must be used when licensing the
> databases in a failover environment.

This is one database, mounted by only one instance at a time. Other node is idle or is doing something else, not Oracle DB stuff. When the primary node fails, you (or cluster software) mounts the storage to other node and you can start up the instance there. You can the instance there for 10 days per year w.o. additional licences.

> . Standby: One or many copies of the primary database are maintained on
> separate server(s) at all times. These systems are configured for disaster
> recovery purposes. If the primary database fails, the standby database is
> activated to act as the new primary database. In this environment, the
> primary and the standby databases must be fully licensed. Additionally,
> the same metric must be used when licensing the databases in a standby
> environment.

This is two copies of the same database. One is active and running on primary node, other is just a copy of primary applying archivelogs coming for primary. Despite any failover or no failover Oracle is running on both nodes all the time, so you need licenses for both nodes as well.

Tanel.

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