changing archive from noarchive

hi all,

This is the first time, I am going to put one production server, which is running in Active-Passive cluster, in archivelog mode from noarchive log mode. As I said since this is the first time , I am going to do this , so I don know what are the changes required. My plan is as :

1. setting log_archive_dest,log_archive_format & log_archive_start parameters in init.ora/spfile.ora on both the nodes
2. connecting to oracle server with sys/pass_at_string as sysdba
3. shutting down the database using SHUTDOWN IMMEDIATE
4. starting the database normally using STARTUP

Do I need to do something else??? Plz. sugges.

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Thanks & Regards,
T. Onkar Nath
OneAPPS Enterprise Technology Pvt. Ltd.
       to_onkar_at_yahoo.com
       onkarnath.tiwary_at_gmail.com