Migration of VM's from Fibre Channel to VSAN/hyper converged?

Hi,

Currently all our VM's are on fibre attached datastores in a HP Blade environment. If we moved to a VSAN or a hyper converged environment I assume there would be an outage as the datastores will no longer be shared datastores.

So I assume you would need to shutdown the VM and migrate it off to the VSAN/hyper converged environment or is there a way to present the VSAN/hyper convered datastores to your traditional environment?

Thanks