Preparing to back up workloads using Azure Backup Server
This article explains how to prepare your environment to back up workloads using Azure Backup Server. With Azure Backup Server, you can protect application workloads such as Hyper-V VMs, Microsoft SQL Server, SharePoint Server, Microsoft Exchange, and Windows clients from a single console.
Azure Backup Server can now protect VMware VMs and provides improved security capabilities. Install the product as explained in the sections below; apply Update 1 and the latest Azure Backup Agent. To learn more about backing up VMware servers with Azure Backup Server, see the article, Use Azure Backup Server to back up a VMware server. To learn about security capabilities, refer to Azure backup security features documentation.
You can also protect Infrastructure as a Service (IaaS) workloads such as VMs in Azure.
Azure has two deployment models for creating and working with resources: Resource Manager and classic. This article provides the information and procedures for restoring VMs deployed using the Resource Manager model.
Azure Backup Server inherits much of the workload backup functionality from Data Protection Manager (DPM). This article links to DPM documentation to explain some of the shared functionality. Though Azure Backup Server shares much of the same functionality as DPM. Azure Backup Server does not back up to tape, nor does it integrate with System Center.
Choose an installation platform
The first step towards getting the Azure Backup Server up and running is to set up a Windows Server. Your server can be in Azure or on-premises.
Using a server in Azure
When choosing a server for running Azure Backup Server, it is recommended you start with a gallery image of Windows Server 2012 R2 Datacenter or Windows Server 2016 Datacenter. The article, Create your first Windows virtual machine in the Azure portal, provides a tutorial for getting started with the recommended virtual machine in Azure, even if you've never used Azure before. The recommended minimum requirements for the server virtual machine (VM) should be: A2 Standard with two cores and 3.5 GB RAM.
Protecting workloads with Azure Backup Server has many nuances. The article, Install DPM as an Azure virtual machine, helps explain these nuances. Before deploying the machine, read this article completely.
Using an on-premises server
If you do not want to run the base server in Azure, you can run the server on a Hyper-V VM, a VMware VM, or a physical host. The recommended minimum requirements for the server hardware are two cores and 4 GB RAM. The supported operating systems are listed in the following table:
|Windows Server 2016 and latest SPs||64 bit||Standard, Datacenter, Essentials (MABS v2 onwards)|
|Windows Server 2012 R2 and latest SPs||64 bit||Standard, Datacenter, Foundation|
|Windows Server 2012 and latest SPs||64 bit||Datacenter, Foundation, Standard|
|Windows Storage Server 2012 R2 and latest SPs||64 bit||Standard, Workgroup|
|Windows Storage Server 2012 and latest SPs||64 bit||Standard, Workgroup|
You can deduplicate the DPM storage using Windows Server Deduplication. Learn more about how DPM and deduplication work together when deployed in Hyper-V VMs.
Azure Backup Server is designed to run on a dedicated, single-purpose server. You cannot install Azure Backup Server on:
- A computer running as a domain controller
- A computer on which the Application Server role is installed
- A computer that is a System Center Operations Manager management server
- A computer on which Exchange Server is running
- A computer that is a node of a cluster
Always join Azure Backup Server to a domain. If you plan to move the server to a different domain, it is recommended that you join the server to the new domain before installing Azure Backup Server. Moving an existing Azure Backup Server machine to a new domain after deployment is not supported.
Recovery Services vault
Whether you send backup data to Azure or keep it locally, the software needs to be connected to Azure. To be more specific, the Azure Backup Server machine needs to be registered with a recovery services vault.
To create a recovery services vault:
- Sign in to the Azure portal.
On the Hub menu, click Browse and in the list of resources, type Recovery Services. As you begin typing, the list filters based on your input. Click Recovery Services vault.
The list of Recovery Services vaults is displayed.
On the Recovery Services vaults menu, click Add.
The Recovery Services vault blade opens, prompting you to provide a Name, Subscription, Resource group, and Location.
- For Name, enter a friendly name to identify the vault. The name needs to be unique for the Azure subscription. Type a name that contains between 2 and 50 characters. It must start with a letter, and can contain only letters, numbers, and hyphens.
- Click Subscription to see the available list of subscriptions. If you are not sure which subscription to use, use the default (or suggested) subscription. There are multiple choices only if your organizational account is associated with multiple Azure subscriptions.
- Click Resource group to see the available list of Resource groups, or click New to create a new Resource group. For complete information on Resource groups, see Azure Resource Manager overview
- Click Location to select the geographic region for the vault.
- Click Create. It can take a while for the Recovery Services vault to be created. Monitor the status notifications in the upper right-hand area in the portal. Once your vault is created, it opens in the portal.
Set Storage Replication
The storage replication option allows you to choose between geo-redundant storage and locally redundant storage. By default, your vault has geo-redundant storage. If this vault is your primary vault, leave the storage option set to geo-redundant storage. Choose locally redundant storage if you want a cheaper option that isn't quite as durable. Read more about geo-redundant and locally redundant storage options in the Azure Storage replication overview.
To edit the storage replication setting:
- Select your vault to open the vault dashboard and the Settings blade. If the Settings blade doesn't open, click All settings in the vault dashboard.
On the Settings blade, click Backup Infrastructure > Backup Configuration to open the Backup Configuration blade. On the Backup Configuration blade, choose the storage replication option for your vault.
After choosing the storage option for your vault, you are ready to associate the VM with the vault. To begin the association, you should discover and register the Azure virtual machines.
Downloading the software package
- Sign in to the Azure portal.
If you already have a Recovery Services vault open, proceed to step 3. If you do not have a Recovery Services vault open, but are in the Azure portal, on the Hub menu, click Browse.
- In the list of resources, type Recovery Services.
As you begin typing, the list will filter based on your input. When you see Recovery Services vaults, click it.
The list of Recovery Services vaults appears.
From the list of Recovery Services vaults, select a vault.
The selected vault dashboard opens.
The Settings blade opens up by default. If it is closed, click on Settings to open the settings blade.
Click Backup to open the Getting Started wizard.
In the Getting Started with backup blade that opens, Backup Goals will be auto-selected.
In the Backup Goal blade, from the Where is your workload running menu, select On-premises.
From the What do you want to backup? drop-down menu, select the workloads you want to protect using Azure Backup Server, and then click OK.
The Getting Started with backup wizard switches the Prepare infrastructure option to back up workloads to Azure.
If you only want to back up files and folders, we recommend using the Azure Backup agent and following the guidance in the article, First look: back up files and folders. If you are going to protect more than files and folders, or you are planning to expand the protection needs in the future, select those workloads.
In the Prepare infrastructure blade that opens, click the Download links for Install Azure Backup Server and Download vault credentials. You use the vault credentials during registration of Azure Backup Server to the recovery services vault. The links take you to the Download Center where the software package can be downloaded.
Select all the files and click Next. Download all the files coming in from the Microsoft Azure Backup download page, and place all the files in the same folder.
Since the download size of all the files together is > 3G, on a 10Mbps download link it may take up to 60 minutes for the download to complete.
Extracting the software package
After you've downloaded all the files, click MicrosoftAzureBackupInstaller.exe. This will start the Microsoft Azure Backup Setup Wizard to extract the setup files to a location specified by you. Continue through the wizard and click on the Extract button to begin the extraction process.
At least 4GB of free space is required to extract the setup files.
Once the extraction process complete, check the box to launch the freshly extracted setup.exe to begin installing Microsoft Azure Backup Server and click on the Finish button.
Installing the software package
Click Microsoft Azure Backup to launch the setup wizard.
On the Welcome screen click the Next button. This takes you to the Prerequisite Checks section. On this screen, click Check to determine if the hardware and software prerequisites for Azure Backup Server have been met. If all prerequisites are met successfully, you will see a message indicating that the machine meets the requirements. Click on the Next button.
Microsoft Azure Backup Server requires SQL Server Standard, and the Azure Backup Server installation package comes bundled with the appropriate SQL Server binaries needed. When starting with a new Azure Backup Server installation, you should pick the option Install new Instance of SQL Server with this Setup and click the Check and Install button. Once the prerequisites are successfully installed, click Next.
If a failure occurs with a recommendation to restart the machine, do so and click Check Again.
Azure Backup Server will not work with a remote SQL Server instance. The instance being used by Azure Backup Server needs to be local.
Provide a location for the installation of Microsoft Azure Backup server files and click Next.
The scratch location is a requirement for back up to Azure. Ensure the scratch location is at least 5% of the data planned to be backed up to the cloud. For disk protection, separate disks need to be configured once the installation completes. For more information regarding storage pools, see Configure storage pools and disk storage.
Provide a strong password for restricted local user accounts and click Next.
Select whether you want to use Microsoft Update to check for updates and click Next.
We recommend having Windows Update redirect to Microsoft Update, which offers security and important updates for Windows and other products like Microsoft Azure Backup Server.
Review the Summary of Settings and click Install.
The installation happens in phases. In the first phase the Microsoft Azure Recovery Services Agent is installed on the server. The wizard also checks for Internet connectivity. If Internet connectivity is available you can proceed with installation, if not, you need to provide proxy details to connect to the Internet.
The next step is to configure the Microsoft Azure Recovery Services Agent. As a part of the configuration, you will have to provide your vault credentials to register the machine to the recovery services vault. You will also provide a passphrase to encrypt/decrypt the data sent between Azure and your premises. You can automatically generate a passphrase or provide your own minimum 16-character passphrase. Continue with the wizard until the agent has been configured.
Once registration of the Microsoft Azure Backup server successfully completes, the overall setup wizard proceeds to the installation and configuration of SQL Server and the Azure Backup Server components. Once the SQL Server component installation completes, the Azure Backup Server components are installed.
When the installation step has completed, the product's desktop icons will have been created as well. Just double-click the icon to launch the product.
Add backup storage
The first backup copy is kept on storage attached to the Azure Backup Server machine. For more information about adding disks, see Configure storage pools and disk storage.
You need to add backup storage even if you plan to send data to Azure. In the current architecture of Azure Backup Server, the Azure Backup vault holds the second copy of the data while the local storage holds the first (and mandatory) backup copy.
Azure Backup Server requires connectivity to the Azure Backup service for the product to work successfully. To validate whether the machine has the connectivity to Azure, use the
Get-DPMCloudConnection cmdlet in the Azure Backup Server PowerShell console. If the output of the cmdlet is TRUE then connectivity exists, else there is no connectivity.
At the same time, the Azure subscription needs to be in a healthy state. To find out the state of your subscription and to manage it, log in to the subscription portal.
Once you know the state of the Azure connectivity and of the Azure subscription, you can use the table below to find out the impact on the backup/restore functionality offered.
|Connectivity State||Azure Subscription||Back up to Azure||Back up to disk||Restore from Azure||Restore from disk|
|Connected||Deprovisioned||Stopped||Stopped||Stopped and Azure recovery points deleted||Stopped|
|Lost connectivity > 15 days||Active||Stopped||Stopped||Allowed||Allowed|
|Lost connectivity > 15 days||Expired||Stopped||Stopped||Allowed||Allowed|
|Lost connectivity > 15 days||Deprovisioned||Stopped||Stopped||Stopped and Azure recovery points deleted||Stopped|
Recovering from loss of connectivity
If you have a firewall or a proxy that is preventing access to Azure, you need to whitelist the following domain addresses in the firewall/proxy profile:
Once connectivity to Azure has been restored to the Azure Backup Server machine, the operations that can be performed are determined by the Azure subscription state. The table above has details about the operations allowed once the machine is "Connected".
Handling subscription states
It is possible to take an Azure subscription from an Expired or Deprovisioned state to the Active state. However this has some implications on the product behavior while the state is not Active:
- A Deprovisioned subscription loses functionality for the period that it is deprovisioned. On turning Active, the product functionality of backup/restore is revived. The backup data on the local disk also can be retrieved if it was kept with a sufficiently large retention period. However, the backup data in Azure is irretrievably lost once the subscription enters the Deprovisioned state.
- An Expired subscription only loses functionality for until it has been made Active again. Any backups scheduled for the period that the subscription was Expired will not run.
If Microsoft Azure Backup server fails with errors during the setup phase (or backup or restore), refer to this error codes document for more information. You can also refer to Azure Backup related FAQs
You can get detailed information about preparing your environment for DPM on the Microsoft TechNet site. It also contains information about supported configurations on which Azure Backup Server can be deployed and used.
You can use these articles to gain a deeper understanding of workload protection using Microsoft Azure Backup server.