Try using the space calculator discussed in this link: http://community.netapp.com/t5/Data-ONTAP-Discussions/NetApp-Usable-Space-Calculator/td-p/76807
I don't think that calculator factors in ADP.
NetApp Wins One Silver and One Bronze Stevie® Award in 2022 Stevie Awards for Sales and Customer Service
Live Chat, Watch Parties, and More!
Engage digitally throughout the sales process, from product discovery to conﬁguration, and handle all your post-purchase needs.