How to setup logical IP/hostname

Hi,
I need some help on setting up public IP and logical IP on sun cluster. I know that for public IP I need to setup IPMP for both custer nodes. But for logical address do I need to add entry to /etc/hosts for both nodes? Or sun cluster will do it automatically assigning logical hostname to your logical IP address during swithover?
Any help is greatly appreciated.
Thanks.

put an entry in /etc/hosts on all cluster nodes for your logical address name and the associated IP Address.
then
scrgadm -a -L -l <logical hostname> -g <resource group>

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