Netbackup Integration with Data Domain Replication

Hi,

Attached is a simple diagram on our plan to integrate new Data Domain at the DR site with our current Netbackup environment at the Production site. Our objective is to perform clients backup at the DR site and do tape out at the Production site. My questions are:

1. Based on the diagram, does the solution is doable to meet the objective?

2. When Data Domain(DR) replicate image to the Data Domain(Production), does Master Server aware on the replicated image at Data Domain(Production)?

3. From which source will Master Server copy the image for tape out purpose? DataDomain (Production) or DataDomain(DR) ?

4. License required (eg. OST & DD Boost)?

5. Alternative solution to meet the objective.

Thanks in advance