What are the steps need to follow for the reclamation of a VMAX lun which replicating RPA

Hi,

I would like to know the step by step procedure to reclaim the lun from VMAX which is replicating by RPA. I know we have to pause the replication task and reclaim both prod and DR luns. But help me to know the step by step procedure that i need to follow. Please let me know if any one did this before.