What is the result of enabling vSphere Fault Tolerance on a VM?

Enabling vSphere Fault Tolerance (FT) on a virtual machine (VM) primarily provides high availability without any downtime. This technology allows you to create a live shadow instance of the VM, ensuring that if the primary VM fails or experiences issues, the secondary VM can immediately take over without interruption of service. This capability is essential for applications that require uninterrupted operation, maintaining service continuity in the event of hardware failure or other issues.

While other features of VMware, such as resource allocation and backup capabilities, play important roles in overall infrastructure management and data protection, they are not the primary functions of vSphere Fault Tolerance. Instead, FT's primary focus is on ensuring that applications remain available with zero downtime, making it a critical feature for mission-critical workloads.