Azure Site Recovery (ASR)
For any business person, unplanned service disruptions and data center outages are the worst nightmares. However, while a lot may perceive such thing as inevitable natural disasters, Microsoft offers two excellent replication options to support disaster recovery and business continuity strategies – Hyper-V Replica and Azure Site Recovery (ASR).
High availability of Hyper-V VMs can be achieved through various means, one of them being Hyper-V Replica. The way it works is creating and maintaining copies of especially important (business-wise) VMs in a secondary site such as, say, backup data center. This solution is fault-tolerant so that even a loss of the whole data center won’t reflect on your VMs. However, an option like this is far from perfect because, for one, how many enterprises can simply afford a secondary data center? What if there isn’t one, but fault tolerance is still required on the platform level?
