> Expert > Backup and Restore Agents > Snapshot Management > Solutions > Application-Consistent Backups Using Azure Managed Disk Snapshots > Getting Started with Snapshot Backups Using Microsoft Azure Snap

IntelliSnap with Microsoft Azure Snapshot Configuration

To use the Microsoft Azure Snap engine, perform the following configuration.

Procedure

  1. On Azure Linux VMs, turn the LVM metadata cache daemon off.

  2. On the Azure portal, complete the following configuration:

    1. Enable the Managed Identity feature for the Azure VM. This enables the Commvault software backup and restore processes to use token-based authentication. By default, the Commvault software uses the Azure system-assigned managed identity to obtain the authentication tokens for the backup and restore operations.

    2. Assign the contributor role access to the Azure VM at the Azure Resource Groups scope that manages the VM and associated disks. This role access enables the Commvault software backup and restore processes that run in the VM to perform the create, attach, and detach operations on Azure snapshots. Instead of a privileged role, you can use a custom role. For more information, see Adding a Customized Role to Restrict Access for Microsoft Azure VMs.

    3. If the Azure VM is used as the backup copy proxy VM or as the restore target VM, ensure the following:

      1. At the Azure Resource Groups scope that manages the VM and the snapshots, assign the contributor role to the Azure VM.

      2. Free enough data disk slots to attach the Azure disk snapshots. For example, if the number of backup snapshots is 3, then the backup copy VM must have 3 free data disk slots to attach the Azure disk snapshots.

  3. If you want to use a user-managed identity on the Azure VM to obtain authentication tokens for backup and restore operations, you must use the user-managed identity that is provided with the required Azure RBAC permissions for the backup and restore operations. For more information, see Enabling the Azure User-Managed Identity.

  4. If the Azure VM operations take a long time to complete, you can increase the wait time for responses to the Azure API requests. For more information, see KB article Snapshots Taken with the Microsoft Azure Snap Engine Fail To Map.

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