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The primary reason to disable encryption in transit is to support a legacy application that must be run on an older operating system, such as Windows Server 2008 R2 or older Linux distribution. When encryption is disabled, Azure Files will also allow SMB 2.1 and SMB 3.x without encryption. You can disable encryption in transit for an Azure storage account. AES-128-GCM is negotiated by default on Windows 10, version 21H1 for performance reasons. SMB 3.1.1 also supports AES-128-GCM and SMB 3.0 supports AES-128-CCM. Clients that do not support SMB 3.x with SMB channel encryption will not be able to mount the Azure file share if encryption in transit is enabled.Īzure Files supports AES-256-GCM with SMB 3.1.1 when used with Windows Server 2022 or Windows 11. This means that when you mount a file share over SMB (or access it via the FileREST protocol), Azure Files will only allow the connection if it is made with SMB 3.x with encryption or HTTPS. Encryption at rest applies to both the SMB and NFS protocols.īy default, all Azure storage accounts have encryption in transit enabled. Because data is encrypted beneath the Azure file share's file system, as it's encoded to disk, you don't have to have access to the underlying key on the client to read or write to the Azure file share. Storage service encryption works similarly to BitLocker on Windows: data is encrypted beneath the file system level. SecurityĪll data stored in Azure Files is encrypted at rest using Azure storage service encryption (SSE). SMB file shares can be mounted directly on-premises or can also be cached on-premises with Azure File Sync.

Optionally internet-accessible file shares with internet-safe SMB 3.0+.

Automatic soft delete on Azure file shares to prevent accidental deletes.

Previous version support through VSS integrated share snapshots.

SMB channel encryption including AES-256-GCM, AES-128-GCM, and AES-128-CCM.

High network throughput using SMB Multichannel (premium file shares only).

Network isolation with Azure private endpoints.

Integrated serverless backup with Azure Backup.

AD domain join and discretionary access control lists (DACLs).

New application and service development, particularly if that application or service has a requirement for random IO and hierarchical storage.Īzure Files supports the major features of SMB and Azure needed for production deployments of SMB file shares:.

Backing storage for Windows-based applications, such as SQL Server databases or line-of-business applications written for Win32 or.

End-user file shares such as team shares, home directories, etc.

SMB file shares are often used in the following scenarios:

SMB file shares are used for a variety of applications including end-user file shares and file shares that back databases and applications. For information about NFS Azure file shares, see NFS file shares in Azure Files. This article covers SMB Azure file shares. For all file shares, Azure Files offers enterprise-grade file shares that can scale up to meet your storage needs and can be accessed concurrently by thousands of clients. Azure file shares don't support accessing an individual Azure file share with both the SMB and NFS protocols, although you can create SMB and NFS file shares within the same storage account. Azure Files enables you to pick the file system protocol that is the best fit for your workload. Azure Files offers two industry-standard protocols for mounting Azure file share: the Server Message Block (SMB) protocol and the Network File System (NFS) protocol.

Alternative to smbup