Assuming two 2012 R2 Hyper-V nodes (not clustered). You have Hyper-V Replica configured on each of the VMs for DR purposes.
During maintenance you want to use Shared Nothing Migrations to prevent shutting down the VMs. Can Shared Nothing Migration use the Hyper-V replica seed? Meaning the data that has already been replicated?
Or when you initiate a shared nothing migration, does it copy the VM/data all over again resulting in 2 copies of the data (Hyper-V Replica and the Shared Nothing Migration VM copy).