file import Unity 650F 4.5 with VNX

Hi,

I have the intention to use the Inband Migration Tool to migrate the VNX CIFS and NFS over to Unity.  However I have two doubts that the current whitepaper and documentation are not able to address.

First, the WP mentioned about the file system will be inflated due to 64-bit file system.  The table in the WP provides little clue and understanding.  I have a 2 TB file system that I need to migrate from VNX to Unity, in that case should I see the new file system will end up with 3 TB.  If I use the robocopy and rsync does this impact the file system inflation issue.

My current VNX is running in replication setup.   For the IMT tool, does it allow me to pre-create the replication between the two unity boxes along with file import session.   It mean I need to have a concurrent and cascade replication setup.   During the final cutover, Unity DR NAS is ready,