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How to Configure Azure Storage Account to Leverage Immutability with Veeam Backup & Replication

KB ID: 4416
Product: Veeam Backup & Replication | 12 | 12.1
Published: 2023-02-28
Last Modified: 2023-10-20
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Purpose

This article was designed to complement the information available in the Veeam Backup & Replication User Guide, specifically the required storage account and container settings to align with the Azure Blob Storage  Immutability Limitations.

This article describes the correct options that must be selected when configuring an Azure Storage Account to leverage the Veeam Backup & Replication Azure Immutability feature, available starting with Veeam Backup & Replication 12.

Solution

Immutability Requires a New Storage Account Container

Immutability can only be applied to new containers; it cannot be retroactively applied to existing backup data.

Do not enable immutability for existing containers in the Azure portal, as this could prevent Veeam Backup & Replication from processing these containers correctly, potentially leading to data loss.

Review All Setting Requirements Closely

It is crucial to configure the immutability-related settings for the storage account and container precisely as instructed.

Incorrect configuration of the storage account and its container can prevent Veeam Backup & Replication from managing immutability, which would necessitate the creation of a new storage account and container with the correct settings.

The setting requirements in this article are based on information available in the Veeam Backup & Replication User Guide:

Please note that since Veeam Backup & Replication requires versioning to be enabled at the storage account level, this storage account should not be used with other Veeam products unless they also require immutability and versioning. Therefore, it is advisable to review each Veeam product's requirements for Azure immutable storage thoroughly.

Storage Account Required Settings

In order to use Immutability with Azure Blob Storage, the following options must be set during Storage Account creation.

On the 'Data protection' tab of storage account creation:

 

Storage Account Setting
Example of Required Settings

Container-Level Required Setting

After creating the Storage Account with the required settings, create a new container with the following setting:

container
Note: You must expand the Advanced section.

Post-Creation Requirements

Do not create

More Information

Immutability will make your data impossible to delete before its immutability retention expiration, except in the event of termination of the associated Azure subscription due to failure to pay. If you fail to pay your bill and your account has an active time-based retention policy in effect, normal data retention policies will apply as stipulated in the terms and conditions of your contract with Microsoft. For general information, see Data management at Microsoft.
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