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Resiliency flow update - Az Disk backup Tutorial and how-to
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articles/backup/back-up-managed-disks-tutorial.md

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title: Tutorial - Back up Azure Managed Disks using Azure Backup
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description: In this tutorial, learn how to back up Azure Managed Disks from the Azure portal.
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ms.topic: tutorial
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ms.date: 06/11/2025
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ms.date: 01/29/2026
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ms.service: azure-backup
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author: AbhishekMallick-MS
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ms.author: v-mallicka
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## Configure backup
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- Azure Disk backup supports only the operational tier backup. Copying of backups to the vault storage tier is currently not supported. The Backup vault storage redundancy setting (LRS/GRS) doesn’t apply to the backups stored in the operational tier. <br> Incremental snapshots are stored in a Standard HDD storage, irrespective of the selected storage type of the parent disk. For additional reliability, incremental snapshots are stored on [Zone Redundant Storage (ZRS)](../storage/common/storage-redundancy.md) by default in ZRS supported regions.
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- Azure Disk backup supports only the operational tier backup. Copying of backups to the vault storage tier is currently not supported. The Backup vault storage redundancy setting (LRS/GRS) doesn’t apply to the backups stored in the operational tier. <br> Incremental snapshots are stored in a Standard Hard Disk Drive (HDD) storage, irrespective of the selected storage type of the parent disk. For more reliability, incremental snapshots are stored on [Zone Redundant Storage (ZRS)](/azure/storage/common/storage-redundancy#zone-redundant-storage) by default in ZRS supported regions.
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- Azure Disk backup supports cross-subscription (backup vault in one subscription and the source disk in another) backup and restore. Currently, cross-region backup and restore aren't supported by Azure Disk backup, that is, the backup vault and disk to back up are in different regions. <br> So, to use Azure Disk backup, ensure that the backup vault and disk to back up are in the same region.
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- Once you configure the disk backup, you can’t change the Snapshot Resource Group that’s assigned to a backup instance.
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To configure disk backup, follow these steps:
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To configure Azure Disk backup, follow these steps:
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1. Go to **Backup center** -> **Overview** and click **+ Backup** to start configuring backup of the disk.
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1. Go to **Resiliency**, and then select **+ Configure protection**.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/start-configuring-backup-of-disk-inline.png" alt-text="Screenshot showing the option to start Azure Disk backup." lightbox="./media/back-up-managed-disks-tutorial/start-configuring-backup-of-disk-expanded.png":::
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1. On the **Configure protection** pane, select **Resource managed by** as **Azure**, **Datasource type** as **Azure Disks**, **Solution** as **Azure Backup**, and then select **Continue**.
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1. Select **Azure Disks** in the **Datasource type** drop-down list, and then click **Continue**.
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:::image type="content" source="./media/backup-managed-disks/select-azure-disks-as-datasource-type.png" alt-text="Screenshot shows how to select the datasource type as Azure Disks." lightbox="./media/backup-managed-disks/select-azure-disks-as-datasource-type.png":::
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:::image type="content" source="./media/back-up-managed-disks-tutorial/select-azure-disks-as-datasource-type-inline.png" alt-text="Screenshot showing the process to select Azure Disks as Data protection type." lightbox="./media/back-up-managed-disks-tutorial/select-azure-disks-as-datasource-type-expanded.png":::
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1. On the **Configure Backup** pane, on the **Basics** tab, under **Vault**, click **Select vault**.
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1. Select a Backup vault and click **Next** to proceed.
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:::image type="content" source="./media/backup-managed-disks/select-vault.png" alt-text="Screenshot shows the selection of a Backup vault for Azure Disk backup." lightbox="./media/backup-managed-disks/select-vault.png":::
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1. On the **Select a Vault** pane, select the Backup vault from the list you created, and then click **Select**.
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>[!Note]
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>- Ensure that both the backup vault and the disk to be backed up are in same location.
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>- Azure Backup uses [_incremental snapshots_](/azure/virtual-machines/disks-incremental-snapshots#restrictions) of managed disks, which store only the delta changes to the disk as the last snapshot on Standard HDD storage, regardless of the storage type of the parent disk. For additional reliability, incremental snapshots are stored on Zone Redundant Storage (ZRS) by default in the ZRS supported regions. Currently, Azure Disk Backup supports operational backup of managed disks that doesn't copy backups to the Backup vault storage. So, the backup storage redundancy setting of the Backup vault doesn’t apply to the recovery points.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/select-backup-vault-inline.png" alt-text="Screenshot showing the process to select a Backup vault." lightbox="./media/back-up-managed-disks-tutorial/select-backup-vault-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/select-backup-vault.png" alt-text="Screenshot shows how to select a Backup vault." lightbox="./media/backup-managed-disks/select-backup-vault.png":::
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1. On the **Backup Policy** tab, choose a Backup policy.
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1. On the **Configure Backup** pane, on the **Basics** tab, select **Next**.
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1. On the **Backup policy** tab, choose a Backup policy, and then select **Next**.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/choose-backup-policy-inline.png" alt-text="Screenshot showing the process to choose a Backup policy." lightbox="./media/back-up-managed-disks-tutorial/choose-backup-policy-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/choose-backup-policy.png" alt-text="Screenshot shows how to choose a Backup policy." lightbox="./media/backup-managed-disks/choose-backup-policy.png":::
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1. On the **Datasources** tab, click **+ Add/Edit** to choose one or more Azure Managed Disks for which you want to configure backup.
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1. On the **Datasources** tab, select **+ Add/Edit** to choose one or more Azure Managed Disks for which you want to configure backup.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/choose-azure-managed-disks-inline.png" alt-text="Screenshot showing the process to choose Azure Managed Disks." lightbox="./media/back-up-managed-disks-tutorial/choose-azure-managed-disks-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/choose-azure-managed-disks.png" alt-text="Screenshot shows how to choose Azure Managed Disks." lightbox="./media/backup-managed-disks/choose-azure-managed-disks.png":::
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>[!Note]
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>While the portal allows you to select multiple disks and configure backup, each disk is an individual backup instance. Currently, Azure Disk Backup only supports backup of individual disks. Point-in-time backup of multiple disks attached to a virtual machine isn't supported.
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>See the [support matrix](./disk-backup-support-matrix.md) for more information on the Azure Disk backup region availability, supported scenarios, and limitations.
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1. Select **Snapshot resource group** and click **Validate** to initiate prerequisites checks.
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1. Select **Snapshot resource group** and then select **Validate** to initiate prerequisites checks.
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Choosing resource group for storing and managing snapshots:
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- Once you configure the backup of a disk, you can’t change the Snapshot Resource Group that’s assigned to a backup instance.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/validate-snapshot-resource-group-inline.png" alt-text="Screenshot showing the process to initiate prerequisites checks." lightbox="./media/back-up-managed-disks-tutorial/validate-snapshot-resource-group-expanded.png":::
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1. Once the validation is complete, check if there are any errors reported in the Backup readiness column.
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1. When the validation is complete, check if there are any errors reported in the Backup readiness column.
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>[!Note]
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>Validation might take few minutes to complete. Validation may fail if:
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>- A disk is unsupported. See the [support matrix](./disk-backup-support-matrix.md) for unsupported scenarios.
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>- A disk is unsupported. See the [support matrix](./disk-backup-support-matrix.md) for unsupported scenarios for more information.
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>- The Backup vault managed identity does not have valid role assignments on the _disk_ to be backed up or on the _snapshot resource group_ where incremental snapshots are stored.
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If the _Role assignment not done_ error message displays in the **Backup readiness** column, the Backup vault managed identity needs role permissions on the selected disk(s) and/or on the Snapshot resource group.
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If the _Role assignment not done_ error message displays in the **Backup readiness** column, the Backup vault managed identity needs role permissions on one or more selected disk(s) and/or on the Snapshot resource group.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/role-assignment-not-done-error-inline.png" alt-text="Screenshot showing the Role assignment not done error message." lightbox="./media/back-up-managed-disks-tutorial/role-assignment-not-done-error-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/role-assignment-not-done-error.png" alt-text="Screenshot shows the Role assignment not done error message." lightbox="./media/backup-managed-disks/role-assignment-not-done-error.png":::
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To configure backup of managed disks, the following prerequisites are required:
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>[!Note]
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>The Configure Backup flow using Azure portal helps you in granting required role permissions to the above resources.
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1. Select the checkbox next to each row with the _Role assignment not done_ error message status in the Backup readiness column and click **Add missing roles** to automatically grant required role permissions for the Backup vault managed identity on selected resources.
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1. Select the checkbox next to each row with the _Role assignment not done_ error message status in the Backup readiness column and select **Add missing roles** to automatically grant required role permissions for the Backup vault managed identity on selected resources.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/add-missing-roles-inline.png" alt-text="Screenshot showing the process to add missing roles." lightbox="./media/back-up-managed-disks-tutorial/add-missing-roles-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/add-missing-roles.png" alt-text="Screenshot shows how to add missing roles." lightbox="./media/backup-managed-disks/add-missing-roles.png":::
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1. Click **Confirm** to provide consent. Azure Backup will automatically propagate role assignment changes on your behalf and try to revalidate.
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1. Select **Confirm** to provide consent. Azure Backup automatically propagates role assignment changes on your behalf and tries to revalidate.
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If you want to grand permission for the Backup vault managed identity to the selected disk(s) and snapshot resource group, select **Resource** in the **Scope** drop-down list.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/confirm-role-propagation-inline.png" alt-text="Screenshot showing the option to provide consent to Azure Backup for automatic role assignment." lightbox="./media/back-up-managed-disks-tutorial/confirm-role-propagation-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/confirm-role-propagation.png" alt-text="Screenshot shows the option to provide consent to Azure Backup for automatic role assignment." lightbox="./media/backup-managed-disks/confirm-role-propagation.png":::
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>[!Tip]
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>If you plan to configure backup for other disks in the same resource group/subscription in future, you can choose to provide permission at the scope of resource group or subscription.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/permission-deployment-in-progress-inline.png" alt-text="Screenshot showing the permission deployment." lightbox="./media/back-up-managed-disks-tutorial/permission-deployment-in-progress-expanded.png":::
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:::image type="content" source="./media/back-up-managed-disks-tutorial/permission-waiting-to-propagate-inline.png" alt-text="Screenshot showing the permission waiting to propagate to the resource group." lightbox="./media/back-up-managed-disks-tutorial/permission-waiting-to-propagate-expanded.png":::
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:::image type="content" source="./media/back-up-managed-disks-tutorial/revalidating-permission-propagation-inline.png" alt-text="Screenshot showing the attempts to revalidate permission propagate for failed scenarios." lightbox="./media/back-up-managed-disks-tutorial/revalidating-permission-propagation-expanded.png":::
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>[!Note]
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>- In some cases, it can take up to 30 minutes for the role assignments to propagate, causing revalidation failure. In this scenario, retry after some time.
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>- If the **Add missing roles** action fails to assign permissions with the error ‘Insufficient permission for role assignment’ in Backup readiness column, it indicates that you don’t have the privilege to assign role permissions. Choose Download role assignment template to download role assignments as scripts and seek support from your IT Administrator to run the scripts to complete the prerequisites.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/permission-propagation-taking-long-time-inline.png" alt-text="Screenshot showing the permission propagate instances taking longer time, upto 30 seconds." lightbox="./media/back-up-managed-disks-tutorial/permission-propagation-taking-long-time-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/permission-propagation-taking-long-time.png" alt-text="Screenshot shows the permission propagates instances taking longer time, up to 30 seconds." lightbox="./media/backup-managed-disks/permission-propagation-taking-long-time.png":::
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1. After a successful validation, select **Next**.
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1. After a successful validation, click **Next** to move to the **Review and configure** tab, and then click **Configure backup** to configure backup of selected disks.
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1. On the **Review and configure** tab, select **Configure backup** to complete the backup configuration of selected disks.
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:::image type="content" source="./media/back-up-managed-disks-tutorial/configure-backup-of-selected-disks-inline.png" alt-text="Screenshot showing the process to configure backup of selected disks." lightbox="./media/back-up-managed-disks-tutorial/configure-backup-of-selected-disks-expanded.png":::
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:::image type="content" source="./media/backup-managed-disks/configure-backup-of-selected-disks.png" alt-text="Screenshot shows how to configure backup of selected disks." lightbox="./media/backup-managed-disks/configure-backup-of-selected-disks.png":::
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## Run an on-demand backup
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articles/backup/backup-managed-disks.md

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title: Back up Azure Managed Disks
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description: Learn how to back up Azure Managed Disks from the Azure portal.
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ms.topic: how-to
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ms.date: 08/26/2025
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ms.date: 01/29/2026
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ms.service: azure-backup
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author: AbhishekMallick-MS
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ms.author: v-mallicka
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To create a backup policy for Azure Disks, follow these steps:
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1. Go to **Business Continuity Center**, and then select **Manage** > **Protection policies**.
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1. Go to **Resiliency**, and then select **Manage** > **Protection policies**.
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:::image type="content" source="./media/backup-managed-disks/create-policy.png" alt-text="Screenshot shows how to start creating a backup policy." lightbox="./media/backup-managed-disks/create-policy.png":::
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To configure Azure Disk backup, follow these steps:
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1. Go to **Business Continuity Center**, and then select **+ Configure protection**.
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1. Go to **Resiliency**, and then select **+ Configure protection**.
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1. On the **Configure protection** pane, select **Resource managed by** as **Azure**, **Datasource type** as **Azure Disks**, **Solution** as **Azure Backup**, and then select **Continue**.
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