How does VMware High Availability (HA) ensure continuity?

VMware High Availability (HA) is specifically designed to enhance uptime and ensure continuity for virtual machines (VMs) by automatically restarting VMs on different hosts in the event of a host failure. This process allows for minimal downtime because, if one host becomes unavailable due to hardware or software issues, HA quickly detects the failure and initiates the restart of affected VMs on other available hosts within the same cluster. This capability is crucial for maintaining business operations and minimizing the impact of hardware failures.

In contrast, taking VM snapshots every hour is a method for backing up state information but does not guarantee immediate VM availability in the case of a host failure. Migrating VMs to different data centers involves more complex processes and is not the primary function of VMware HA. Lastly, while load balancing is an important aspect of resource management, it is not directly related to the HA feature, which focuses specifically on recovery from failures rather than distributing workloads. Therefore, the primary function of VMware HA is to ensure continuity by restarting VMs on available hosts after a failure occurs.