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General Availability: Vaulted backup for Azure Files - Boost your data security and compliance

Trinadh Kotturu's avatar
Trinadh Kotturu
Former Employee
Mar 20, 2025

We are thrilled to announce the General Availability (GA) of Vaulted Backup support in Azure Backup for Azure files - Standard tier to help seamlessly protect your data and applications hosted on Azure file share. With this release, you can now leverage vaulted backup integration to protect Standard SMB file shares.

Azure Backup vaulted support for Azure file share provides enhanced data protection with the ability to configure snapshot and vaulted backup in a single policy to a secure backup location(Recovery Services vault) and support regional recovery. Vaulted backup provides advanced protection capabilities like ransomware protection, ability to restore even when file share is deleted which are missing with snapshot only backup. Vaulted backup solution seamlessly integrates with Azure File sync allowing File sync customers to protect data tiered to the cloud long-term in a cost-effective manner.

In this blog post let’s explore how Azure Backup can enable robust data protection solution for businesses migrating and hosting applications on Azure file share.

Security: Protection against Ransomware

Ransomware or malware attack, continues to be a major threat to organizations worldwide, often leaving businesses at the mercy of cybercriminals demanding hefty ransom payments in exchange for access to their encrypted data. Vaulted backups provide a vital line of defense, ensuring that organizations can recover their data without giving in to ransom demands.

Key features offered by vaulted Backups which protects against Ransomware:

  • Isolation: Vaulted Backup data is isolated from your production storage accounts and stored in a separate tenant managed by Microsoft. This isolation helps safeguard your data against unauthorized tampering and ensures that your backups remain intact.
  • Advanced security: Features like vault lock, multi-user authorization, and soft delete, which add additional layers of protection, ensuring that backups are immune to malicious deletion or tampering.
  • Governance and security posture: Azure Backup integrates with the Business Continuity and Disaster Recovery (BCDR) security posture, allowing you to better manage and govern the security of your backups. This ensures that your backups meet the right level of protection and are recoverable when you need them most.

Regulatory and compliance

Azure File share enables users from industries like legal, finance, and health to store crucial business data. To comply with regulations and compliance checks, one will require offsite backups with long-term retention, which snapshots alone couldn't provide. With vaulted backup users can move snapshots to a Recovery Services Vault in the same Azure region as their primary storage, with options for cross-regional replication. This setup allows backup data to be retained for up to 99 years in low-cost, highly secure, immutable storage, meeting regulatory and compliance requirements during audits and legal holds.

Furthermore, with the introduction of the new cross-subscription backup capability, organizations can allocate backup data to dedicated subscriptions. This feature allows customers to consolidate all backups into a single subscription, enhancing cost management and ensuring independent access control. It enables organizations to retain control over their data protection strategy while ensuring that each department or project adheres to its specific regulatory and security requirements.

Enterprise Ready

Vaulted backup support now enables adherence to the widely accepted 3-2-1 backup rule for Azure files protection. Azure Backup is well integrated with Azure Business Continuity Center that can offer centralized management to gain visibility, monitor jobs, alerts and reporting.  

How does 3-2-1 backup help?

Human errors, insider threats, or stolen credentials can lead to critical data loss. File share snapshots serve as the first line of defense to restore your data. In case, where snapshots are not available, Vaulted Backups, stored securely outside of your primary storage account, provide an additional protected copy of your data. Additionally, the copy of the backup can be replicated to another region using GRS Geo-Redundant storage. A backup policy will enable you to manage the schedule and retention for both snapshots and vault copies. 

In the event of deletion whether accidental or malicious the restore process will first be initiated using snapshots. If snapshots are unavailable, recovery will proceed from the vault. If the primary region is down then one can restore from the secondary region with Cross Region restore option  

Getting started

Here are three simple steps to help you get started with configuring vaulted backup for Azure File shares:

  1. Create a Recovery services vaultA vault is a management entity that stores backups and allows you to access and manage them.  
  2. Create a backup policyBackup policy enables you to configure the frequency and retention of backups based on your business requirements. 
  3. Select the storage account and File shares to backupYou can choose to back up all File share or select specific File shares from the selected storage account depending on the criticality of the data they contain.

Learn more about vaulted backup for File share here.

Pricing and availability

Vaulted backup for Azure File share standard is generally available in these  regions. Vaulted backup for premium file shares will continue to be in public preview.

You will incur a protected instance fee and charges for backup storage for both standard and premium shares from 1st April 2025. To learn about pricing, refer to the Azure File share backup pricing page.

Contact us

If you have questions or feedback, please reach out to us at AskAzureBackupTeam@microsoft.com.

Updated Mar 20, 2025
Version 1.0

2 Comments

  • How can I consider 3-2-1 rule in Azure backup in terms of the rule 2? Rule 2 is "on 2 different media" I understand, but how can I explain that?

    • Trinadh Kotturu's avatar
      Trinadh Kotturu
      Former Employee

      Great question. Operational tier backup is Azure Files snapshots where as vaulted backup data is object storage. Two different formats of storage.