To keep virtual machines (VMs) up and running at all times in a vSphere cluster, an administrator would like VMs to be migrated automatically when the host hardware health status becomes degraded. Whi

Predictive DRS uses workload prediction from vRealize Operations Manager to proactively balance cluster resources and optimize performance by moving VMs, but it does not specifically react to host hardware health degradation.

Proactive HA is specifically designed to work with host hardware monitoring providers to detect degraded hardware conditions, such as failing power supplies or fans, and then automatically migrate virtual machines off the affected host using vMotion before a complete hardware failure occurs, preventing service disruption.

vSphere HA Orchestrated Restart is a feature of vSphere HA that automatically restarts virtual machines on other healthy hosts after a host failure or VM failure has occurred, rather than proactively migrating them from a degraded host.

vSphere Fault Tolerance (FT) provides continuous availability by maintaining a live, synchronized shadow VM on another host, ensuring zero downtime during a host failure, but it is not specifically about migrating VMs due to degraded hardware health.