VMs using GPU pass-through cannot be live-migrated because they are directly tied to a physical GPU on a specific host.
* Option B (VMs use GPU pass-through) is correct:
* Pass-through devices (such as GPUs) are directly assigned to VMs, makingmigration impossibleunless the VM is powered off first.
* Option A (VMs use a Volume Group) is incorrect:
* Volume Groupssupport live migrationunless they are configured incorrectly.
* Option C (VM-VM anti-affinity) is incorrect:
* Anti-affinity rules prevent two specific VMs from running together, but do not prevent migration.
* Option D (VMs use external NAS) is incorrect:
* Using NAS does not block VM migration, as Nutanixsupports shared storage across hosts.
References:
* Nutanix AHV Best Practices#GPU Pass-through and VM Migration Limitations
* Nutanix KB#Why Can't I Live Migrate a VM with GPU Passthrough?