Does OneFS 8 support virus scanning for NFS clients? NFSv3? NFSv4?
If so where can the support statement and details be found?
E.g. ICAP server versions supported.
Take a look at the "Antivirus" chapter in this doc:
OneFS antivirus scanning using an external ICAP servers
operates directly on the filesystem -- it is therefore independent
of the client access protocol like NFS or SMB.