| author | AbhishekMallick-MS |
|---|---|
| ms.service | azure-backup |
| ms.topic | include |
| ms.date | 11/18/2025 |
| ms.author | v-mallicka |
You can configure backup on multiple Azure Data Lake Storage.
To configure vaulted backup, follow these steps:
-
In the Azure portal, go to the Backup vault, and then select + Backup.
-
On the Configure Backup pane, on the Basics tab, review the Datasource type is selected as Azure Data Lake Storage.
-
On the Backup policy tab, under Backup policy, select the policy you want to use for data retention, and then select Next. If you want to create a new backup policy, select Create new. learn how to create a backup policy.
-
On the Datasources tab, Select Add.
:::image type="content" source="./media/azure-data-lake-storage-configure-backup/add-resource-for-backup.png" alt-text="Screenshot shows how to add resources for backup." lightbox="./media/azure-data-lake-storage-configure-backup/add-resource-for-backup.png":::
-
On the Select storage account container pane, provide the Backup instance name, and then click select under Storage account.
:::image type="content" source="./media/azure-data-lake-storage-configure-backup/specify-backup-instance-name.png" alt-text="Screenshot shows how to provide the backup instance name." lightbox="./media/azure-data-lake-storage-configure-backup/specify-backup-instance-name.png":::
-
On the Select hierarchical namespace enabled storage account pane, select the storage accounts with Azure Data Lake Storage across subscriptions from the list that are in the region same as the vault.
:::image type="content" source="./media/azure-data-lake-storage-configure-backup/select-storage-account.png" alt-text="Screenshot shows the selection of storage accounts." lightbox="./media/azure-data-lake-storage-configure-backup/select-storage-account.png":::
-
On the Select storage account container pane, you can back up all containers or select specific ones.
After you add the resources, backup readiness validation starts. If the required roles are assigned, the validation succeeds with the Success message.
:::image type="content" source="./media/azure-data-lake-storage-configure-backup/role-assign-message-success.png" alt-text="Screenshot shows the success message for role assignments." lightbox="./media/azure-data-lake-storage-configure-backup/role-assign-message-success.png":::
Error messages appear when access permissions are missing. See the Grant permissions section.
Validation errors appear if the selected storage accounts don't have the Storage Account Backup Contributor role. Review the error messages and take necessary actions.
Error Cause Recommended action Role assignment not done The Storage account backup contributor role and the other required roles for the storage account to the vault aren't assigned. Select the roles, and then select Assign missing roles to automatically assign the required role to the Backup vault and trigger an auto revalidation.
If the role propagation takes more than 10 minutes, then the validation might fail. In this scenario, you need to wait for a few minutes and select Revalidate to retry validation.
You need to assign the following types of permissions for various operations:
- Resource-level permissions: For backing up a single account within a resource group.
- Resource group or Subscription-level permissions: For backing up multiple accounts within a resource group.
- Higher-level permissions: For reducing the number of role assignments needed.
The maximum count of role assignments supported at the subscription level is 4,000. Learn more about Azure Role-Based Access Control Limits.Insufficient permissions for role assignment The vault doesn't have the required role to configure backups, and you don't have enough permissions to assign the required role. Download the role assignment template, and then share with users with permissions to assign roles for storage accounts. -
Review the configuration details, and then select Configure Backup.
You can track the progress of the backup configuration under Backup instances. After the configuration of backup is complete, Azure Backup triggers the backup operation as per the backup policy schedule to create the recovery points. Backup might take a minimum of 30–40 minutes, as backups rely on snapshots, which are taken in every 15 minutes and require two snapshots to detect changes before triggering the backup.