Hi FelixZhou,
You can request a try and buy from the link below:
Link: https://www.netapp.com/us/try-and-buy/test-drive/index.aspx | click on the Storage Tiering with FabricPool: Moving Cold Data from ONTAP to StorageGRID
You can also request more information and possible demo from this site.
Link: https://www.netapp.com/us/forms/tools/storagegrid-demo.aspx
Both sites will put you in contact with a NetApp account rep who will answer any questions you might have.
Let me know if that is what you were looking for.
Team NetApp