EMC® VNX® Series Security Configuration Guide for VNX

VNX for file NFS network services

NFS network services are more straightforward than CIFS network services in many cases, but they do not offer the same level of authentication and tight integration with an enterprise environment. When a high-level NFS service is activated on VNX for file, a collection of network services or ports is activated on the Data Mover to support NFS client access and the standard services expected. The functionality and behavior of specific ports are described in VNX for file Data Mover network ports. The activated ports are:

• Port 1234 on the Data Mover for the mount service
• Port 2049 on the Data Mover for the NFS and NFSv4 services
• Port 31491 on the Data Mover for the Remote File Access (RFA) service

VNX provides a multinaming domain solution for the Data Mover in the UNIX environment by implementing a NFS server per Virtual Data Mover (VDM). This solution implements an NFS server per VDM named 'NFSendpoint'. The VDM is used as a container that includes the file systems exported by the NFS endpoint and/or the CIFS server. These file systems of the VDM are visible through a subset of the Data Mover network interfaces attached to the VDM. The same network interface can be shared by both CIFS and NFS protocols on that VDM. The NFS endpoint and CIFS server are addressed through the network interfaces attached to that particular VDM. Configuring Virtual Data Movers on VNX provides more information about this feature.