Beefstu,

Thank you for the insight!

Active Dup. might be a good idea when the prod is not constraint on batch processing.
1.
But I wonder, does RMAN dup. or backup use SQLNet? If so, there will be some bottleneck?
2.
As far as arc logs, if you are using SAN/DAD for backup storage, perhaps a NFS mount be helpful to all arch. logs that is needed for active dup.

3.
11.2.0.2.3 PSU fixed the BCT bug for duplication.
11.2.0.3 for AIX will be out this month.
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4. If I have to use backup based duplication, if on day 1 at 3am Prod rman backup completes, at 7am an automated backup-based duplication to dev is to happen, how would I automate the until time instead of hard-code to_date in it?

Joy