@danieeljosee If your XCP-ng pool is set up correctly, live migration with Xen Orchestra works straight away. Compatibility is key in a pool (CPU manufacturer, CPU architecture, XCP-ng version, network cards/ports). There is a lot of leeway for CPU architecture, but I would recommend not mixing new and older CPU generations.

For the network settings, it depends on your network architecture. You can run all network traffic via one NIC or you can separate the network traffic from management, VM migration, VM and/or storage/backup using more NICs. In a homelab, one NIC is usually sufficient.

While shared storage is very helpful for VM live migration, you can also live migrate the VM with its disks attached on local storage. Just select the destination host and destination storage repository. For local storage, VMs and attached disks must of course be located on the same destination host.

Check out Tom's YT channel as @ph7 suggested.