Need Quick HELP on Adding instance to RAC

Hi All,

As part of OS Upgrade, we  have built new 2 NODE RAC system on HPUX in order to mimic the existing RAC server.

I have installed CRS/ASM & DB Software and migrated one of the database from old server to new server.

Now, i need to  convert that database into RAC on node 2.

I understand that i need to update the following parameters in node 2 ,however am still not clear the complete steps

*.cluster_database_instances=2

*.cluster_database=true

*.remote_listener='LISTENERS_PROD1’

prod1a.thread=1

prod1a.instance_number=1

prod1a.undo_tablespace='UNDOTBS1'

prod1b.thread=2