Oracle concurrent managers in 11i RAC environment

Hi,
I am looking for some help/input on managing concurrent managers in an 11i/RAC environment. Following is the environment configuration and the problem description :
I am running Oracle E-business suite (11.5.9) in a three-node RAC environment using Veritas's "DBE/AC for 9i RAC" suite. PCP is configured and concurrent managers are running on all nodes. This is lab environment and I am in the process of engineering the design for deployment in production later this year. The managers work fine in terms of node or instance failure and they failover properly. The question I have is from the environment management standpoint: ** If I want to take a node down for scheduled/regular maintenance reasons, how do I "gracefully" migrate managers running on that specific node to their secondary node? Those managers may include ICM or other concurrent managers

If there is someone in this list who currently has RAC deployed in production and is running concurrent managers in PCP configuration then I would really like to know what process they follow when they have to take a node down for scheduled maintenance.

Thank you
Amir

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