Understanding DR strategies in Azure

Question

I am new to Azure, I need to set up a DR for my application which consists of Virtual Machines, Disks and storage accounts. I want to understand:

1. Is it possible to do an Active Active Setup using Azure Site Recovery service?
2. As per my understanding, Azure site recovery provides capabilities for backup and restore DR strategy? Is my understanding correct?
3. How much data loss can I expect if I use Azure Site Recovery for setting up DR.
4. Which strategy should I use so that I have minimal data loss at optimal cost.
5. It would also be helpful if someone can guide me to the step by step process of setting DR.

Thanks in Advance.

Answer 1

Hello @Priyanka Srivastava Thank you for reaching out to us on Microsoft Q&A platform. Happy to answer any questions you may have!

I understand that you are planning to set up a DR for your application that consists of Virtual Machines, Disks and storage accounts and would like to get answers to your questions posted in the original post. Please find the answers below:

1. Is it possible to do an Active Active Setup using Azure Site Recovery service?

Azure Site Recovery is application-agnostic and provides replication for any workloads running on a supported machine.

1. As per my understanding, Azure site recovery provides capabilities for backup and restore DR strategy? Is my understanding correct?

No. Azure Site Recovery is a DR solution through which you can replicate your machines to Azure and failback in the event of disaster.

1. How much data loss can I expect if I use Azure Site Recovery for setting up DR.

The amount of data loss that you can expect when using Azure Site Recovery for setting up disaster recovery (DR) depends on several factors, including the replication frequency, the amount of data being replicated, and the time it takes to failover to the secondary site.

Azure Site Recovery provides several replication frequencies, including 5 minutes, 15 minutes, and 30 minutes. The replication frequency determines how often changes to your data are replicated to the secondary site. The more frequently data is replicated, the less data loss you can expect in the event of a disaster.

1. This is covered in the previous answer.
2. It would also be helpful if someone can guide me to the step by step process of setting DR.
   Depending upon the type of set up you have, you can follow the guidance from the links shared below:

Set up disaster recovery of on-premises Hyper-V VMs to Azure

Set up disaster recovery to Azure for on-premises VMware VMs

Set up disaster recovery to Azure for on-premises physical servers

Set up disaster recovery to a secondary Azure region for an Azure VM

Additional references:
About Site Recovery

Why use Site Recovery for application replication?

High availability and disaster recovery scenarios for IaaS apps

Hope this helps. Please reply if you need any further assistance!

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