VMware Fault tolerance (FT) has historically used vLockstep technology, which had been replaced in vSphere 6.0 by another technology called fast checkpointing. My detailed post – VMware vSphere 6.0 allowing to configure 4vCPU in a FT protected VM.  vSphere 6.5 is pushing things forward and improving this technology even further, especially from a latency standpoint, which […]