Create an SMB volume for Azure NetApp Files

Azure NetApp Files supports creating volumes using NFS (NFSv3 or NFSv4.1), SMB3, or dual protocol (NFSv3 and SMB, or NFSv4.1 and SMB). A volume's capacity consumption counts against its pool's provisioned capacity.

This article shows you how to create an SMB3 volume. For NFS volumes, see Create an NFS volume. For dual-protocol volumes, see Create a dual-protocol volume.

Before you begin

  1. Register the feature:

    Register-AzProviderFeature -ProviderNamespace Microsoft.NetApp -FeatureName ANFSmbNonBrowsable
    Register-AzProviderFeature -ProviderNamespace Microsoft.NetApp -FeatureName ANFSMBAccessBasedEnumeration
  2. Check the status of the feature registration:


    The RegistrationState may be in the Registering state for up to 60 minutes before changing to Registered. Wait until the status is Registered before continuing.

    Get-AzProviderFeature -ProviderNamespace Microsoft.NetApp -FeatureName ANFSmbNonBrowsable
    Get-AzProviderFeature -ProviderNamespace Microsoft.NetApp -FeatureName ANFSMBAccessBasedEnumeration   

You can also use Azure CLI commands az feature register and az feature show to register the feature and display the registration status.

Configure Active Directory connections

Before creating an SMB volume, you need to create an Active Directory connection. If you haven't configured Active Directory connections for Azure NetApp files, follow instructions described in Create and manage Active Directory connections.

Add an SMB volume

  1. Select the Volumes blade from the Capacity Pools blade.

    Navigate to Volumes

  2. Select + Add volume to create a volume.
    The Create a Volume window appears.

  3. In the Create a Volume window, select Create and provide information for the following fields under the Basics tab:

    • Volume name
      Specify the name for the volume that you are creating.

      Refer to Naming rules and restrictions for Azure resources for naming conventions on volumes. Additionally, you cannot use default or bin as the volume name.

    • Capacity pool
      Specify the capacity pool where you want the volume to be created.

    • Quota
      Specify the amount of logical storage that is allocated to the volume.

      The Available quota field shows the amount of unused space in the chosen capacity pool that you can use towards creating a new volume. The size of the new volume must not exceed the available quota.

    • Large Volume If the quota of your volume is less than 100 TiB, select No. If the quota of your volume is greater than 100 TiB, select Yes.


      Large volumes are currently in preview. If this is your first time using large volumes, you must first register the feature and request an increase in regional capacity quota.

      Volumes are considered large if they are between 100 TiB and 500 TiB in size. Once created, volumes less than 100 TiB in size cannot be resized to large volumes. Large volumes cannot be resized to less than 100 TiB and can only be resized up to 30% of lowest provisioned size. To understand the requirements and considerations of large volumes, refer to for using Requirements and considerations for large volumes.

    • Throughput (MiB/S)
      If the volume is created in a manual QoS capacity pool, specify the throughput you want for the volume.

      If the volume is created in an auto QoS capacity pool, the value displayed in this field is (quota x service level throughput).

    • Enable Cool Access, Coolness Period, and Cool Access Retrieval Policy
      These fields configure standard storage with cool access in Azure NetApp Files. For descriptions, see Manage Azure NetApp Files standard storage with cool access.

    • Virtual network
      Specify the Azure virtual network (VNet) from which you want to access the volume.

      The VNet you specify must have a subnet delegated to Azure NetApp Files. The Azure NetApp Files service can be accessed only from the same VNet or from a VNet that is in the same region as the volume through VNet peering. You can also access the volume from your on-premises network through Express Route.

    • Subnet
      Specify the subnet that you want to use for the volume.
      The subnet you specify must be delegated to Azure NetApp Files.

      If you haven't delegated a subnet, you can select Create new on the Create a Volume page. Then in the Create Subnet page, specify the subnet information, and select Microsoft.NetApp/volumes to delegate the subnet for Azure NetApp Files. In each VNet, only one subnet can be delegated to Azure NetApp Files.

      Create subnet

    • Network features
      In supported regions, you can specify whether you want to use Basic or Standard network features for the volume. See Configure network features for a volume and Guidelines for Azure NetApp Files network planning for details.

    • Encryption key source You can select Microsoft Managed Key or Customer Managed Key. See Configure customer-managed keys for Azure NetApp Files volume encryption and Azure NetApp Files double encryption at rest about using this field.

    • Availability zone
      This option lets you deploy the new volume in the logical availability zone that you specify. Select an availability zone where Azure NetApp Files resources are present. For details, see Manage availability zone volume placement.

    • If you want to apply an existing snapshot policy to the volume, select Show advanced section to expand it, specify whether you want to hide the snapshot path, and select a snapshot policy in the pull-down menu.

      For information about creating a snapshot policy, see Manage snapshot policies.

      Show advanced selection

  4. Select Protocol and complete the following information:

    • Select SMB as the protocol type for the volume.

    • Select your Active Directory connection from the drop-down list.

    • Specify a unique share name for the volume. This share name is used when you create mount targets. The requirements for the share name are as follows:

      • It must be unique within each subnet in the region.
      • It must start with an alphabetical character.
      • It can contain only letters, numbers, or dashes (-).
      • The length must not exceed 80 characters.
    • If you want to enable encryption for SMB3, select Enable SMB3 Protocol Encryption.

      This feature enables encryption for in-flight SMB3 data. SMB clients not using SMB3 encryption will not be able to access this volume. Data at rest is encrypted regardless of this setting.
      See SMB encryption for additional information.

    • If you want to enable access-based enumeration, select Enable Access Based Enumeration.

      This feature will hide directories and files created under a share from users who do not have access permissions to the files or folders under the share. Users will still be able to view the share.

    • You can enable the non-browsable-share feature.

      This feature prevents the Windows client from browsing the share. The share does not show up in the Windows File Browser or in the list of shares when you run the net view \\server /all command.


    Both the access-based enumeration and non-browsable shares features are currently in preview. If this is your first time using either, refer to the steps in Before you begin to register either feature.

    • If you want to enable Continuous Availability for the SMB volume, select Enable Continuous Availability.

      You should enable Continuous Availability for the following workloads/use cases only:

      • Citrix App Layering
      • FSLogix user profile containers, including FSLogix ODFC containers
      • MSIX app attach with Azure Virtual Desktop
        • When using MSIX applications with the CIM FS file format:
          • The number of AVD session hosts per volume shouldn't exceed 500.
          • The number of MSIX applications per volume shouldn't exceed 40.
        • When using MSIX applications with the VHDX file format:
          • The number of AVD session hosts per volume shouldn't exceed 500.
          • The number of MSIX applications per volume shouldn't exceed 60.
        • When using a combination of MSIX applications with both the VHDX and CIM FS file formats:
          • The number of AVD session hosts per volume shouldn't exceed 500.
          • The number of MSIX applications per volume using the CIM FS file format shouldn't exceed 24.
          • The number of MSIX applications per volume using the VHDX file format shouldn't exceed 24.
      • SQL Server
        • Continuous Availability is currently supported on Windows SQL Server.
        • Linux SQL Server is not currently supported.


      Using SMB Continuous Availability shares is only supported for Citrix App Layering, SQL Server, FSLogix user profile containers including FSLogix ODFC containers, or MSIX app attach containers. This feature is currently supported on SQL Server on Windows. Any other workload is not supported.

      If you are using a non-administrator (domain) account to install SQL Server, ensure the account has the required security privilege assigned. If the domain account does not have the required security privilege (SeSecurityPrivilege), and the privilege cannot be set at the domain level, you can grant the privilege to the account by using the Security privilege users field of Active Directory connections. For more information, see Create an Active Directory connection.


      Change notifications are not supported with Continuously Available shares in Azure NetApp Files.

      Custom applications are not supported with SMB Continuous Availability.

    Screenshot showing the Protocol tab of creating an SMB volume.

  5. Select Review + Create to review the volume details. Then select Create to create the SMB volume.

    The volume you created appears in the Volumes page.

    A volume inherits subscription, resource group, location attributes from its capacity pool. To monitor the volume deployment status, you can use the Notifications tab.

Control access to an SMB volume

Access to an SMB volume is managed through permissions.

NTFS file and folder permissions

You can set permissions for a file or folder by using the Security tab of the object's properties in the Windows SMB client.

Set file and folder permissions

Modify SMB share permissions

You can modify SMB share permissions using Microsoft Management Console (MMC).


Modifying SMB share permissions poses a risk. If the users or groups assigned to the share properties are removed from the Active Directory, or if the permissions for the share become unusable, then the entire share will become inaccessible.

  1. To open Computer Management MMC on any Windows server, in the Control Panel, select Administrative Tools > Computer Management.
  2. Select Action > Connect to another computer.
  3. In the Select Computer dialog box, enter the name of the Azure NetApp Files FQDN or IP address or select Browse to locate the storage system.
  4. Select OK to connect the MMC to the remote server.
  5. When the MMC connects to the remote server, in the navigation pane, select Shared Folders > Shares.
  6. In the display pane that lists the shares, double-click a share to display its properties. In the Properties dialog box, modify the properties as needed.

Next steps