Deciding whether or not to configure FT depends on the workloads of the protected VMs. One of the major reasons to choose FT is if you require zero or near zero downtime for a critical workload. If you perform a current state analysis of an existing infrastructure and find some critical workloads already protected in the physical infrastructure, it is most likely that these workloads require protection in a VMware virtual infrastructure as well. FT is simple to configure and can offer a wide range of workloads to be protected. However, it works for uniprocessor VMs, which is a deal killer for most VMs that would otherwise get FT.
However, there are a number of limitations associated with the configuration of FT. Many fundamental virtualization benefits are lost, including the use of VM snapshots and VMware vSphere Storage vMotion.
There are a number of prerequisites and configurations on the infrastructure side, which should be in place before...