using Test Failover drill: https://learn.microsoft.com/en-us/azure/site-recovery/site-recovery-test-failover-to-azure#create-a-network-for-test-failover , I want to perform my first "Test Failover" to the DR Region to a setup vNet with a unique CIDR on my network. When The VM gets created after executing the Test Failover, what resource group will it be in? I see no place to specify the resource group - please provide guidance

Thanks for posting your question in the Microsoft Q&A forum. During the test failover, you’ll need to specify an Azure virtual network where the test VMs will be created. Site Recovery will attempt to create the test VMs in a subnet with the same name and IP address as provided in the Compute and Network settings of the original VM. The resource group for the test VMs will be the same as the resource group associated with the target virtual network . If the target virtual network is in a specific resource group, the test VMs will be created in that same resource group. Does the response help answer your question? Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution. Thanks 🙂

ASR will automatically create a resource group which name will be derived from the resource group name in the primary region (from what recall, it will have the ASRReplica suffix) hth Marcin

What resource group will my ASR setup VM get brought up in when perform a "Test Failover" drill

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Suwarna S Kale 301 Reputation points

2024-03-10T21:19:11.9333333+00:00

Thanks for posting your question in the Microsoft Q&A forum.

During the test failover, you’ll need to specify an Azure virtual network where the test VMs will be created. Site Recovery will attempt to create the test VMs in a subnet with the same name and IP address as provided in the Compute and Network settings of the original VM.

The resource group for the test VMs will be the same as the resource group associated with the target virtual network. If the target virtual network is in a specific resource group, the test VMs will be created in that same resource group.

Does the response help answer your question? Please remember to "Accept Answer" if any answer/reply helped, so that others in the community facing similar issues can easily find the solution. Thanks 🙂
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Rob McNees 221 Reputation points

2024-03-11T19:08:00.58+00:00

Suwarna - I'm hoping your answer is correct. Thinking about it makes sense.

I have an ASR already setup in replication that will land in the DR region in a vNet with the same CIDR as Production (and use therefore for "planned failovers" and "unplanned failovers" ) the "-asr" vNet obviously is not peered to our production network because obviously you can't have 2 IPs the same or same CIDR in our production network.

However, as stated by my question, I want to do a "Test Failover" (meaning prod is not affected, nor is replication affected). But I want to failover to a new vNet in DR Region (same subscription) with a unique CIDR. Why? so I can bring the VM with a unique IP address and be able to access it because it is peered. It will be a copy of the primary VM with a unique IP in prod network. We can RDP into it and validate it looks good. Then we will tear down this VM. The resource group answer you provided makes sense: if I understand your response: Not specifying any resource group when I initiate the "Test Failover" - will by default use the same resource group as the vNet I specify in the "Test Failover"! (which is in DR Region). See the attachment that conceptually shows what I want to do. I will specify the "vnet-asr-testing" per the diagram when doing the "Test Failover - see attachment. Does this sound right?lexmark-Test-Failover.jpg

Rob McNees 221 Reputation points

2024-03-12T19:10:23.9866667+00:00

thanks @Suwarna S Kale This sounds very logical and I will do the Test Failover to confirm your statements. I like the idea by default, the Test Failover will put in same resource group as the vNet created in the DR Region (in this case Central US). I have set up my ASR replication to use same IP, but for the Test Failover, I do not want same IP, but want to put into vNet with unique CIDR on the network, so that I can RDP into it and confirm that VM that comes up in DR Region - looks like the primary. Attached is a link to the concept I have setup lexmark-Test-Failover.jpg

Suwarna S Kale 301 Reputation points

2024-03-16T11:01:55.96+00:00

Hi Rob,

As I am understanding from the diagram you have shared, you want to put it in a unique vnet with new CIDR range. Try this, after the test failover completes, you’ll have a copy of your primary VM in the DR region vNet.

Modify the network configuration of this test VM to assign a different private IP address within the new vNet.

You can do this by either by editing the network interface (NIC) associated with the VM and changing its IP configuration OR creating a new NIC with the desired IP configuration and attaching it to the VM. RDP into this test VM using its unique IP address. Validate its configuration, applications, and connectivity. Ensure it looks good and behaves as expected.

Feel free to post if you have any further questions. If this answer helped, please accept the answer :-)
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What resource group will my ASR setup VM get brought up in when perform a "Test Failover" drill

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