IBM N Series - SFTP Is Not Supported

SFTP is not supported
Secure File Transfer Protocol (SFTP) was introduced in a previous Data
ONTAP release, but it is not supported in the Data ONTAP 8.0 release family.
If you enabled SFTP in a previous Data ONTAP release family, it is no longer
available as an option for file access when you run the Data ONTAP 8.0
release family.
78 IBM System Storage N series: Data ONTAP 8.0.4 7-Mode Release Notes