You have your new Microsoft Storage Spaces Direct hyperconverged HyperV Failover Cluster built.

How can we move your workloads from your existing Hyper-V Failover Cluster to this new farm with Zero Downtime?

Well this process is extremely easy to accomplish using Cluster to Cluster Shared-Nothing Live Migration.

I have used the process below a lot in production and it works great!

Here is the actual step-by-step Method of Procedure Document (MOP) that we use for this.

Shared Nothing Live Migration from Hyper-V Cluster to another Hyper-V Cluster (Without Down Time)

In this solution, you will be able to migrate Virtual Machines between two Hyper-V Clusters without down time using Shared Nothing Live Migration. The steps below outline the process required to achieve these results.

Prerequisites

Infrastructure Servers Requirements

Component	Requirement
Servers	Need to install and configure a new Hyper-v Cluster Need to match the Virtual Switch Network Name
Storage	Need to create new Cluster Shared volume

Migration Steps – Reverting to Standalone Virtual Machine from Highly Available

Login to the Source Hyper-V Cluster and open Failover Cluster Manager
Expand Cluster and select Roles.
Right-click on the Source Virtual Machine and select Remove

Note

This step simply removes the Virtual Machine from the cluster and changes the availability of the Virtual Machine from Highly Available to Standalone.

Migration Steps – Using Shared Nothing Live Migration to move the Virtual Machine to the target CSV Volume

Open Hyper-V Manager and Right-click on the Source Virtual Machine that was removed from the cluster in the steps above and select Move.
On the Before You Begin page, click Next.
On the Choose Move type page, select Move the virtual machine and then click Next.
On the Specify Destination Computer page, click Browse...
Type the server name of the Target Cluster Node, click Check Names and click OK.
Click Next on the Specify Destination Computer page.
On the Choose Move Options page, select Move the virtual machine’s data to a signal location, click Next.
Click Browse on the Choose a new location for virtual machine page.
Click C drive and Select ClusterStorage folder.
Select the desired destination Cluster Shared Volume and click Select Folder.
Click Next on the Choose a new location for virtual machine page.
On the Summary page, review and make sure all of information are correct and then click Finish.

Migration Steps – Making the Virtual Machine Highly Available on the new Hyper-V Failover Cluster

Note

You moved the virtual machine to this node server.

Open Failover Cluster Manager.
Expand Cluster and select Roles.
On the Action pane, select Configure Role.
On the Before You Begin page, click Next.
On the Select Role page, select Virtual Machines and then click Next.
Select the virtual machine which you would like to add it to the new cluster, click Next.
Click Next on the Confirmation page.
On Summary page, click Finish.