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Learn about ONTAP support for NFSv4.0 functionality

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ONTAP supports all the mandatory functionality in NFSv4.0 except the SPKM3 and LIPKEY security mechanisms.

BEST PRACTICE: NFSv4.1 or NFSv4.2 should be used instead of NFSv4.0. NFSv4.0 is an older version of the NFS protocol and is no longer actively developed by the NFS community.

The following NFSV4 functionality is supported:

  • COMPOUND

    Allows a client to request multiple file operations in a single remote procedure call (RPC) request.

  • File delegation

    Allows the server to delegate file control to some types of clients for read and write access.

  • Pseudo-fs

    Used by NFSv4 servers to determine mount points on the storage system. There is no mount protocol in NFSv4.

  • Locking

    Lease-based. There are no separate Network Lock Manager (NLM) or Network Status Monitor (NSM) protocols in NFSv4.

For more information about the NFSv4.0 protocol, see RFC 3530.