VMware HA provides high availability
for virtual machines by pooling them and the hosts they reside on into a
cluster. Hosts in the cluster are monitored and in the event of a failure, the
virtual machines on a failed host are restarted on alternate hosts.
1. Monitors virtual machines to detect operating system and hardware failures.
2. Restart virtual machine on other physical servers in the resource pool without manual intervention when server failure is detected.
3. protects application from operating system failures by automatically restarting virtual machines when an operating system failure is detected.
