The SMI-S adapters for Hitachi storage do not include support for the NAS module in VSP G and VSP F models.
The NAS module can be configured with several IP addresses for both management and file serving, all separate from the SVOS management IP addresses. The NAS module also has a supported REST API which can be used to query configuration and status programmatically.
The NAS documentation is downloadable from the Support portal, https://support.hitachivantara.com, or accessible from the System Management Unit (SMU) GUI.