cluster to another cluster and then the extended replica is used to replicate to the DR
datacenter. The extended replica has its own replication interval that is independent of
the primary replica, but its interval cannot be less than that of the primary replica. For
example, if the primary replica replicates every 5 minutes, then the extended replica
can replicate every 5 minutes or 15 minutes but not at the 30-second interval.
To enable the extended replication, perform the following steps:
1 . Open Hyper-V Manager, and select the Hyper-V host that hosts the replica virtual
machine (note the replica and not the source virtual machine).
2 . Right-click the replica virtual machine, and select the Extend Replication action
from the Replication menu.
3 . Click Next on the introduction screen of the Extend Replication Wizard.
4 . Select the server that will host the extended replica, and click Next.
5 . The rest of the configuration is the same as enabling a normal replica: Select the
authentication type, the frequency of replication, the additional recovery points,
and the initial method of replication.There is no separate PowerShell cmdlet to enable extended replication. The same
Enable-VMReplication cmdlet is used for extended replication by specifying the replica
VM. For ReplicaServerName, specify the extended replica Hyper-V server.
Replication can be removed for a virtual machine by using the Replication – Remove
Replication action or using the Remove-VMReplication PowerShell cmdlet.
Prior to Windows Server 2016, it was not possible to enable replication for a shared
VHDX file, which is a VHDX connected to multiple virtual machines. Windows Server
2016 removes this limitation when using VHD Sets (which is the 2016 version of
Shared VHDX) and fully supports Hyper-V Replica.