A feature included with Hyper-V in Windows Server that copies VMs asynchronously from one Hyper-V host to another to provide disaster recovery.
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In the Ultra Transcenders books
Each book explains Hyper-V Replica in context, with comparison tables and the common traps.
Terms in this definition
- Hyper-V
The hypervisor built into Windows. The VMs for the Azure Extended Network appliance require the Hyper-V role, using nested virtualisation, and an external virtual switch for each NIC.
- Virtual machines
Infrastructure-as-a-service compute giving complete control of the operating system, making it a fit for lift-and-shift moves and for software relying on OS-level pieces like COM.
- DR
Disaster recovery means getting a service running again from another region or site, with success judged by RPO and RTO; uptime SLAs and data retention are different concerns.
Related terms
- Extended replication
Lets a Hyper-V Replica copy be replicated again, to a third host.
- Replica server
The Hyper-V host on the receiving end of Hyper-V Replica, storing VM copies sent by the primary; it can forward them on to a third host.