Microsoft is postponing some features to a future release of Windows Server Virtualization (WSV):

  • No live migration
  • No hot-add resources (storage, networking, memory, processor)
  • Support limit of 16 cores/logical CPUs

You should note that you will be able to move virtual machines between WSV hosts if those hosts are part of a Longhorn cluster. Doing so will give you a downtime depending on the configured memory of the virtual machine and the speed of the storage system. This could be several seconds.

This news makes WSV less compelling than originally thought and we will have to wait a bit more (Longhorn RTM + 0..180 days + x days) for the really interesting stuff.