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Protect and recover Hyper-V machines to premium storage with Azure Site Recovery

ASR now supports replication to premium storage for Hyper-V virtual machines (managed by System Center VMM or not under System Center VMM management)

We are excited to announce support for replication of Hyper-V virtual machines (managed by System Center VMM or not under System Center VMM management)  to premium storage accounts in Azure. 

We recommend that you replicate I/O intensive enterprise workloads to premium storage which provides high IOPS and high disk throughput per VM with extremely low latencies for read operations. At the time of a failover to Azure, workloads replicating to Premium storage will come up on Azure virtual machines running on premium storage and achieves high-levels of performance, both in terms of throughout and latency.

To set up replication to premium storage, you will need

  • A premium storage account: When you replicate your on-premises virtual machines/physical servers to premium storage, all the data residing on the protected machine’s disks is replicated to the premium storage account.
  • A standard storage account: After the initial phase of replicating disk data is complete, all changes to the on-premises disk data are tracked continuously and stored as replication logs in the standard storage account.

Azure Site Recovery - Premium Storage 

Below are a few considerations to keep in mind when using premium storage:

  • Replication to premium storage is supported for both Classic and Resource Manager storage accounts.
  • Copy frequency of 5 minutes or 15 minutes (configured as a setting in Replication policies) is supported for premium storage. This is based on the number of snapshots per blob (100 snapshots per blob) supported by premium storage.


Support Matrix for premium storage

Scenario Replication to premium storage
Hyper-V virtual machines (managed by System Center VMM/ not managed by System Center VMM)                      Yes
VMware virtual machines/ physical servers                      Yes


To understand more about how premium storage works, including performance and scalability targets of premium storage, you can refer the detailed documentation on Premium Storage from the Azure storage team.

Ready to start using ASR? Check out additional product information, to start replicating your workloads to Microsoft Azure using Azure Site Recovery today. You can use the powerful replication capabilities of Site Recovery for 31 days at no charge for every new physical server or virtual machine that you replicate. Visit the Azure Site Recovery forum on MSDN for additional information and to engage with other customers, or use the ASR UserVoice to let us know what features you want us to enable next.

Azure Site Recovery, as part of Microsoft Operations Management Suite, enables you to gain control and manage your workloads no matter where they run (Azure, AWS, Windows Server, Linux, VMware or OpenStack) with a cost-effective, all-in-one cloud IT management solution. Existing System Center customers can take advantage of the Microsoft Operations Management Suite add-on, empowering them to do more by leveraging their current investments. Get access to all the new services that OMS offers, with a convenient step-up price for all existing System Center customers. You can also access only the IT management services that you need, enabling you to on-board quickly and have immediate value, paying only for the features that you use.