Within the VMware vSphere High Availability (HA) cluster, the system continuously observes the operational state of protected virtual machines. This observation process involves tracking key metrics like heartbeat signals and application responsiveness. If a failure is detected, pre-defined steps are automatically initiated to restore service availability. For instance, if a host fails, impacted virtual machines are restarted on other available hosts within the cluster.
This automated responsiveness is crucial for maintaining business continuity. By minimizing downtime and preventing data loss, this feature significantly contributes to service availability and disaster recovery objectives. The evolution of this technology reflects an increasing emphasis on proactive management and automated responses to system failures, ensuring uninterrupted operation for critical workloads.
