Azure Native Backup

VishalKulkarni-0961 0 Reputation points
2026-09-04T15:44:08.2066667+00:00

Can we have Native backup taken in Azure for VMX having Linux Operating system and that too when the VM instance is running.

Azure Backup
Azure Backup

An Azure backup service that provides built-in management at scale.

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  1. AI answer

    2026-09-04T15:44:24.8366667+00:00

    Yes. Azure supports native backup for Linux VMs while the VM is running.

    • Azure Backup supports Azure VMs running Linux by using either the VM extension or agentless crash-consistent backup.
    • For Linux VMs, agent-based backup supports file-consistent backup by default.
    • Application-consistent backup is also supported for Linux VMs by using custom pre-scripts and post-scripts.
    • Agentless crash-consistent backups are also available and are operating system agnostic.
    • During restore, Azure Backup can restore by creating a new VM, restoring a disk to create a VM, replacing a disk on an existing VM, and it also supports file-level recovery.

    Important Linux-specific support notes:

    • Supported Linux distributions are the Azure-endorsed Linux distributions.
    • CoreOS Linux and 32-bit operating systems aren't supported for agent-based VM backup.
    • Backup requires /var and /var/lib on Linux not to be mounted with the noexec flag, because backup operations run helper scripts from /var/lib.
    • Azure Backup doesn't support backing up NFS-mounted files; it backs up only locally attached disks.
    • Backup of Linux Azure VMs with MARS, DPM, or MABS is not supported for this scenario.

    If the requirement is simply to back up a running Linux VM natively in Azure, Azure Backup is the supported option.

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  2. Bence Weiszmann 1,720 Reputation points
    2026-09-04T16:00:25.1066667+00:00

    Dear @VishalKulkarni-0961

    Yes. You can use Azure Backup to back up a Linux Azure VM while the VM is running. You don't need to stop or deallocate the VM before taking the backup. Azure Backup supports both file-consistent and application-consistent backups for supported Linux VMs. For application-consistent backups, you can use pre-scripts and post-scripts to prepare the application before and after the snapshot.For a native backup of a running Linux VM, you can use a Recovery Services vault, configure Azure VM Backup, and enable backup for the VM.

    You can find the supported Linux distributions and other requirements here:

    https://learn.microsoft.com/en-us/azure/backup/backup-support-matrix-iaas#support-for-linux-backup

    For application-consistent backups:

    https://learn.microsoft.com/en-us/azure/backup/backup-azure-linux-app-consistent

    Best regards,
    Bence

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  3. Ravi Varma Mudduluru 12,625 Reputation points Microsoft External Staff Moderator
    2026-09-05T05:59:50.38+00:00

    Hello @VishalKulkarni-0961

    Thanks for reaching out to Microsoft Q&A

    Yes, you can take a fully native Azure Backup of a Linux virtual machine while it is running. There is no need to shut the VM down.

    Azure Backup uses the VMSnapshotLinux extension (installed automatically on the first backup) to create a snapshot-based backup of the live VM. By default you get a file-system consistent recovery point. If you need application consistency (for databases or other stateful workloads), you simply add lightweight pre- and post-scripts; Azure Backup will then mark the recovery point as application-consistent.

    Steps:

    1. Create (or select) a Recovery Services vault in the same region as the VM.
    2. Enable backup on the Linux VM and assign a backup policy.
    3. (Optional) Configure the pre/post scripts if application consistency is required.
    4. Run an on-demand backup or wait for the scheduled job the VM stays online the whole time.

    Official Microsoft documentation that covers exactly this scenario:

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

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