D_Berezenko thank you for the response.
I have double checked that I have inline and post processing compression turned on using this command
volume efficiency modify -vserver vs1 -volume VolA -compression true -inline-compression true
Original volumes were not compressed before moving them. They are coming from a NetApp FAS2440.
I have about 1.5 TB of Office (mostly Word), pdf, and email history files (Worldox) stored on a volume. I expected to see a big compression advantage on this type of files. The majority of the volume space is comprised of this data currently. However, I'm getting 1.27:1 compression level for the volume.