MIPS compilers also generate a number of assembler directives that spim cannot process. These directives usually can be safely ignored. Earlier versions of spim (before 7.0) implemented the MIPS-I instruction set used on the MIPS R2000/R3000 computers. This architecture is obsolete (though, never surpassed for its simplicity and elegance). Mars-app The MARS MIPS Simulator/IDE packaged as an OSX app for easy installation/use. Packaging MARS as an app also gives it a more native feel (for example, menus are located in the menubar instead of in the MARS window).

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This article explains how to install the Microsoft Azure Recovery Services (MARS) agent. MARS is also known as the Azure Backup agent.

About the MARS agent

Azure Backup uses the MARS agent to back up files, folders, and system state from on-premises machines and Azure VMs. Those backups are stored in a Recovery Services vault in Azure. You can run the agent:

Directly on on-premises Windows machines. These machines can back up directly to a Recovery Services vault in Azure.
On Azure VMs that run Windows side by side with the Azure VM backup extension. The agent backs up specific files and folders on the VM.
On a Microsoft Azure Backup Server (MABS) instance or a System Center Data Protection Manager (DPM) server. In this scenario, machines and workloads back up to MABS or Data Protection Manager. Then MABS or Data Protection Manager uses the MARS agent to back up to a vault in Azure.

The data that's available for backup depends on where the agent is installed.

Note

Generally, you back up an Azure VM by using an Azure Backup extension on the VM. This method backs up the entire VM. If you want to back up specific files and folders on the VM, install and use the MARS agent alongside the extension. For more information, see Architecture of a built-in Azure VM backup.

Before you start

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Learn how Azure Backup uses the MARS agent to back up Windows machines.
Learn about the backup architecture that runs the MARS agent on a secondary MABS or Data Protection Manager server.
Review what's supported and what you can back up by the MARS agent.
Make sure that you have an Azure account if you need to back up a server or client to Azure. If you don't have an account, you can create a free one in just a few minutes.
Verify internet access on the machines that you want to back up.
Ensure the user performing the installation and configuration of the MARS agent has local administrator privileges on the server to be protected.

Create a Recovery Services vault

A Recovery Services vault is a management entity that stores recovery points created over time and provides an interface to perform backup related operations. These include taking on-demand backups, performing restores, and creating backup policies.

To create a Recovery Services vault, follow these steps.

Sign in to your subscription in the Azure portal.
On the left menu, select All services.
In the All services dialog box, enter Recovery Services. The list of resources filters according to your input. In the list of resources, select Recovery Services vaults.
The list of Recovery Services vaults in the subscription appears.
On the Recovery Services vaults dashboard, select Add.
The Recovery Services vault dialog box opens. Provide values for the Name, Subscription, Resource group, and Location.
- Name: Enter a friendly name to identify the vault. The name must be unique to the Azure subscription. Specify a name that has at least 2 but not more than 50 characters. The name must start with a letter and consist only of letters, numbers, and hyphens.
- Subscription: Choose the subscription to use. If you're a member of only one subscription, you'll see that name. If you're not sure which subscription to use, use the default (suggested) subscription. There are multiple choices only if your work or school account is associated with more than one Azure subscription.
- Resource group: Use an existing resource group or create a new one. To see the list of available resource groups in your subscription, select Use existing, and then select a resource from the drop-down list. To create a new resource group, select Create new and enter the name. For more information about resource groups, see Azure Resource Manager overview.
- Location: Select the geographic region for the vault. To create a vault to protect any data source, the vault must be in the same region as the data source.
  Important
  If you're not sure of the location of your data source, close the dialog box. Go to the list of your resources in the portal. If you have data sources in multiple regions, create a Recovery Services vault for each region. Create the vault in the first location before you create the vault for another location. There's no need to specify storage accounts to store the backup data. The Recovery Services vault and Azure Backup handle that automatically.
After providing the values, select Review + create.
When you're ready to create the Recovery Services vault, select Create.
It can take a while to create the Recovery Services vault. Monitor the status notifications in the Notifications area at the upper-right corner of the portal. After your vault is created, it's visible in the list of Recovery Services vaults. If you don't see your vault, select Refresh.

Important

We highly recommend you review the default settings for Storage Replication type and Security settings before configuring backups in the vault. For more information, see the Set Storage redundancy section.

Modify storage replication

By default, vaults use geo-redundant storage (GRS).

If the vault is your primary backup mechanism, we recommend that you use GRS.
You can use locally redundant storage (LRS) to reduce Azure storage costs.

To modify the storage replication type:

In the new vault, select Properties under the Settings section.
On the Properties page, under Backup Configuration, select Update.
Select the storage replication type, and select Save.

Note

You can't modify the storage replication type after the vault is set up and contains backup items. If you want to do this, you need to re-create the vault.

Verify internet access

If your machine has limited internet access, ensure that firewall settings on the machine or proxy allow the following URLs and IP addresses:

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URLs
- www.msftncsi.com
- *.Microsoft.com
- *.WindowsAzure.com
- *.microsoftonline.com
- *.windows.net
- www.msftconnecttest.com
IP addresses
- 20.190.128.0/18
- 40.126.0.0/18

Use Azure ExpressRoute

You can back up your data over Azure ExpressRoute by using public peering (available for old circuits) and Microsoft peering. Backup over private peering isn't supported.

To use public peering, first ensure access to the following domains and addresses:

http://www.msftncsi.com/ncsi.txt
http://www.msftconnecttest.com/connecttest.txt
microsoft.com
.WindowsAzure.com
.microsoftonline.com
.windows.net
IP addresses
- 20.190.128.0/18
- 40.126.0.0/18

To use Microsoft peering, select the following services, regions, and relevant community values:

Azure Active Directory (12076:5060)
Azure region, according to the location of your Recovery Services vault
Azure Storage, according to the location of your Recovery Services vault

For more information, see ExpressRoute routing requirements.

Note

Public peering is deprecated for new circuits.

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