View/report data domain usage for individual save sets/servers

Is it possible to get an idea for how much space a particular server is using on the data domain from networker?  With the high levels of deduplication i'm not sure if this is something that would be possible but we are currently running low on space and it would be good to have an understanding of where we may be able to save a bit of space.

We have some very large file servers but as a lot of them have very little change for their size I would expect they are very well deduped and each days backup won't amount to a huge amount of extra space used.

Things like backups of SQL backup files, backups of our voice recorder VM would be useful to see how much space they are using on the DD each day.