Many thanks Ram and Nicoali for responding on this.
@ Ram Yes your understanding is correct it goes from local DD to remote DD. But the replicaiton/duplicaiton jobs are not controlled by Data Domain but infect Netbackup.
@Nicolai - I do login to the Enterprise Manager GUI for diff activities but since replication/duplicaiton is managed by Netbackup I don't see any rate there.
My question again is;
1) When we take the backup from database to local DD using Netbackup should it be deduplicated? I don't think so that it will be and even if it does not I don't mind with that.
2) Replication of the same backup to remote DD is carried out by Netbackup ( using SLPs) - I understand that this should be de-duped and less data should be transferred across th network to remote DD. But it looks like complete backup copy is being replicated as the timings are quite high. Or otherwise it should reduce with daily backup being almost the same. We don't have much change in the data on daily basis, still a lot of data is same over the days and should not be replicated across and should deduped.
Is there anything we are missing here? Any help will be much apprecaited.
Many Thanks,
Khalid