# System Requirements for NFS Exports of Azure NetApp Files

Verify that your environment meets the system requirements for NFS exports of Azure NetApp Files (ANF).

## Supported NFS Versions

- NFSv3

- NFSv4.1

## Services

Ensure that the managed identities for Azure resources service is running.

## Operating System

### Network Share Backup NFS (UNIX File System)

Operating system | Processor architecture
--- | ---
Red Hat Enterprise Linux 10.x with glibc 2.39.x You cannot back up and restore ACLs for Linux on the ARM64 or Power PC platform. | x64 Power PC ARM64 Compatible processors
Red Hat Enterprise Linux 9.x with glibc 2.34.x You cannot back up and restore ACLs for Linux on the ARM64 or Power PC platform. | x64 Power PC ARM64 Compatible processors
Red Hat Enterprise Linux 8.x with glibc 2.28.x You cannot back up and restore ACLs for Linux on the ARM64 or Power PC platform. | x64 Power PC ARM64 Compatible processors
Red Hat Enterprise Linux 7.x with glibc 2.17.x or a more recent version | x86 x64 PowerPC ARM64 Compatible processors

## For IntelliSnap and File System Backups

1. On the VM, which runs IntelliSnap operations, enable managed identity access.

   Both system-managed identities and user-managed identities are supported.

2. On the resource groups for the Azure VM (access node), set one of the following roles:

   Role | Steps
   --- | ---
   Contributor | Set the Contributor role for the resource groups that are associated with the following: A NetApp account of the ANF storage volume. The virtual network to which the ANF volume is connected.
   Custom | Define a custom role to perform IntelliSnap backup and restore operations with ANF volumes, instead of using the Contributor role: Download the CustomRoleDefinition.json file. This role contains the limited permissions needed to perform backup and restore operations with ANF. In the CustomRoleDefinition.json file, update #SubscriptionId# and #ResourceGroupName# in the following entry: assignableScopes": ["/subscriptions/#SubscriptionId#/resourceGroups/#ResourceGroupName1# For more information about creating a custom role, go to Azure Custom Roles on the Microsoft documentation website.

3. Optional: If you are going to use a proxy computer for the backup copy, then do the following:

   - On the proxy computer, set the contributor role.

   - Ensure that the proxy computer is either connected to the same virtual network as the source ANF volume or to a virtual network which is peered to the virtual network on which the source ANF volume is attached.

4. Optional: You can configure snapshot configuration properties for ANF.

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