Configure archiving in Oracle RAC it is similar to configure archiving to a Oracle Single Instance. But on Oracle RAC you have to stop the instances for the database and configure .
I will show an example in the environment where the database it is named bd.
First, you have to stop the database:
srvctl stop database -d bd
After check the status:
Start one instance in mount state.
startup mount
Configure archiving and opening the database:
Start the instance where the state is down (In our case bd2) and check the status for all instances;
srvctl start instance -d bd -i bd2
srvctl status database -d bd
Check the configuration in the database:
References:
Oracle® Real Application Clusters Administration and Deployment Guide 11g Release 2 (11.2) E41960-03
6 Configuring Recovery Manager and Archiving