Interviews - C# Corner

Barenya Padhi
What is azure site recovery and how we replicate VM from one datacenter to another datacenter without data loss?
By Barenya Padhi in Azure onDec 13 2017
  • Susantha Silva
    Sep, 2019 15

    Azure Siter Recovery (ASR) is Microsoft offering of protecting workloads by replicating the data to another datacenter locaiton. You can protect both your on-premise datacenter worklaods (Both Windows, Linux) workloads or Azure hosted workloads.
    Thanks to the technology in ASR we can pre-inject DR side IP address details into the VM’s so when VM’s start from DR side (in case of disaster situation) VM’s will start with their new IP details.
    ASR also support protecting both HYPER-V, VMWare and Physical workloads.
    When we initially setup ASR Primary server on datacenter we’ll be highlighting the VM’s we need to protect. After that ASR Management Server (MS Server) will capture those data blocks and replciate them to designated Azure side storage account. This is called initial sync. Depend on the VM’s datasize and your link speed first sync time may vary from hours to days.
    After that everytime primary side VM data changes occur those changes will be replicated to DR side with pre-defined internvals. (5 seconds, 5 minutes or 15 minutes)

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  • sudhanshu singh
    Aug, 2019 27

    Site Recovery helps ensure business continuity by keeping business apps and workloads running during outages. Site Recovery replicates workloads running on physical and virtual machines (VMs) from a primary site to a secondary location. When an outage occurs at your primary site, you fail over to secondary location, and access apps from there. After the primary location is running again, you can fail back to it.

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