Hello @Ronny Verbiest Thank you for contacting us. Happy to help!
If you are using an Azure classic storage account, it will not be automatically migrated to Azure Resource Manager. You will need to manually migrate the classic storage account to a Resource Manager storage account before August 31, 2022, to avoid any disruption in service.
To migrate a classic storage account to a Resource Manager storage account, you can use the Azure Storage Account Migration tool. This tool provides a simple and easy-to-use interface for migrating your classic storage account to a Resource Manager storage account.
Regarding your concern about keeping access to the blobs in the storage, you will be able to access the blobs in the storage account after the migration. However, you will need to update your application or scripts to use the new Resource Manager storage account endpoint.
Also, please note that you will need to have the necessary permissions to perform the migration. If you do not have admin access, you will need to contact your Azure administrator to perform the migration or grant you the necessary permissions.
Migrate your classic storage accounts to Azure Resource Manager by August 31, 2024 - This guide has all the details about the pre-checks, the step-by-step instructions to migrate your storage account from classic to ARM and FAQ's.
Understand storage account migration from the classic deployment model to Azure Resource Manager
How to migrate your classic storage accounts to Azure Resource Manager
Hope this information helps. Let us know if you have any further questions.