> VMWare has had a high availability mode for over a decade. It keeps checkpoints of system state elsewhere and synchronously replicates them.

So you don't have one VM's, but two. In case of Op's scenario you are paying for 196 CPUS instead of 98.

> If the primary reboots, it checkpoints RAM to the secondary pauses the VM and unpauses it on the secondary a few milliseconds later.

So a very small downtime, but not 0.