Dell Unity: What Are The Supported NFS Versions
Summary: Dell Unity supports NFS NFSv3 through NFSv4.1.
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Instructions
Dell Unity supports [Network File System (NFS)] NFSv3 through NFSv4.1. NFS can be enabled on a per NAS server basis, which only enables the NFSv3 protocol. After enabling NFSv3, administrators have the option to enable additional options such as vVols, NFSv4, and Secure NFS. Afterward, when creating an NFS file system and share, default host access can also be set on a share level with exceptions defined for specific hosts.
In UnityOS 4.4 and earlier, NFSv3 must be enabled before NFSv4 can be enabled. UnityOS 4.5 adds the ability to enable NFSv3 or NFSv4 independently. This is useful for customers who only use NFSv4 and want to leave the NFSv3 protocol disabled. NFSv4 is not supported with vVols.
Additional Information
Dell Unity: NAS Capabilities (March 2025)
Affected Products
Dell EMC Unity, Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity HybridArticle Properties
Article Number: 000009025
Article Type: How To
Last Modified: 31 Oct 2025
Version: 6
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