The server supports all clients compliant with NFS version 2, version 3, or version 4 standards. NFS versions 2, 3 and 4 are supported over TCP. The following table summarizes the supported versions of NFS and other UNIX protocols:
| Protocol | Supported versions |
|---|---|
| NFS | 2, 3, and 4 |
| Port Mapper | 2 |
| Mount | 1 and 3 |
| Network Lock Manager (NLM) | 1, 3, and 4 |
| Network Status Monitor (NSM) | 1 |
CAUTION:
While it is possible to use UDP with NFS on versions 2 and 3, it is not recommended due to inherent risks. On the
NAS server, UDP is not automatically presented as a transport option for the NFS service by the Port Mapper service. To register NFS over UDP in the Port Mapper service, see the
rpc-service-nfs-udp command.