Duplicate data on 2 vms in a data domain.

Ok.

Im new to the Avamar world

Lets say I have i haver serverA it has 1TB of data. This has been backing up for 3 years to a data domain. 

Then server2 is setup as a new server and the 1TB data copied to server2.

Hows does avamar treat the duplicate data on server2?

Is it scanned as new data and backed up as new or is it recognized as duplicate data and not backed up again.

Basically I want to know is the same data on 2 different VMs treated as new data or as already backed?

So i delete the server1 backups i would save a bunch of space as the data is already moved to server2?

Thanks