Using Azure Site Recovery for Migrations

KB ID 0001513

Requirement

ASR (Azure Site Recovery) is primarily used to provide a ‘failover’ environment to be used in a disaster or major outage scenario. Essentially you deploy an Azure Site Recovery Configuration Server in your environment, then in your Azure Portal you create and configure a failover vault.

OK, but we are talking about migrations, well we can use exactly the same procedure to migrate from on premises virtual machines, (or physical machines). We setup replication, then failover to Azure, then simply DON’T fail back 🙂

Azure Migration with ASR

Networking Considerations

We are dealing with getting your machines replicated to Azure, and then failing over to them. You will also need to consider how you will connect the them ‘Post Migration’ This is usually via VPN from your location(s) into Azure. (If you have Cisco networking equipment you are in luck, see the links at the bottom of the page for further help). I’m making the assumption that you have already got this covered.

Solution

While the initial ‘work’ is carried out on your own site, there are a few things that will need to already exist in Azure before you start, you will need a ‘Resource Group‘.

Azure Resource Group

I’m creating a Virtual LAN, for Failover only, theres nothing to stop you using your existing Azure networking but you will need a ‘Virtual Network‘, and a ‘Subnet‘, here I’m using 192.168.0.0/16 and 192.168.100.0/24 respectively.

Azure Failover Virtual Subnet

You will also need to create a ‘Recovery Service Vault

Azure Create Recovery Services Vault

Deploying Microsoft Azure Site Recovery Configuration Server

As you can see I’m running VMware vCenter (6.7), you can also download an image for Hyper-V. Download the ‘appliance’ as an OVA image and deploy it into your VMware infrastructure.

Download Microsoft Azure Site Recovery Configuration Server

Deploy Azure Site Recovery Server

What you will get is a Windows 2016 server (on 180 day eval) as soon as it starts, it will ask you to set the LOCAL administrator password, then reboot, once rebooted, log in and this wizard will launch. Give the server a name, and let it connect to the internet.

Setup Azure Site Recovery Server

Authenticate to your Azure Subscription.

Connect Azure Site Recovery Server

Give the server a static IP, (or it will complain later)

Give Windows a Static IP

As usual, Microsoft assumes everyone’s American, change the Time Zone and ENSURE the time is set correctly.

Change Server 2016 Time Zone

Configure Microsoft Azure Site Recovery Configuration Server

Launch the desktop shortcut.

Configure Azure SR Server

Select your subscription > Resource Group and Recovery Services Vault. Then proceed to installing MySQL. (How times have changed eh?)

Configure Azure SR Server MySQL

Continue > It will perform some checks, if any of them fail, then rectify the problem, and re-run the tests.

Validate Azure SR Server

Continue > Enter your vCenter, (or ESXi if you have stand alone hosts) details.

Connect Azure SR Server to vCenter

Add > Ensure the correct details are listed, and any other vCenters/ESXi hosts as appropriate.

Connect Azure Replication Server to vCenter

Add in some credentials, either local admin credentials for the servers, or some domain admin credentials, (currently) it does not like the UPN username format so use DOMAIN\Username format > Add > Continue.

Add vM Credentuials Azure Replication Server

Don’t know if I hit a bug here, but selecting “No” didn’t do anything, i.e. I could not progress, so I clicked “Yes” and it let me “Finalize Configuration“, (once you change your locale to non American, I wish it would spell things correctly!)

Azure Replication Server Setup

That’s us done!

Azure Site Recovery Server Setup

In PART TWO we will perform a ‘Test Failover”.

Related Articles, References, Credits, or External Links

Microsoft Azure To Cisco ASA Site to Site VPN

Microsoft Azure To Cisco ISR Router Site to Site VPN

Azure Migration Guides

Migrate a VM from vCenter to Azure

Veeam: Restore / Migrate a VM to Azure

Author: PeteLong

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