Let me try to clarify what I am asking - I am not talking about the size of the archive logs themselves - I am talking about the size of the backupsets that will contain copies of the archivelogs. RMAN allows you to set the max number of archivelogs contained in one backup set. That's what I want to increase, so I don't have so many backupsets to then be deleting as they become obsolete.

Am I making more sense to you?