VMware vSphere HA
- VMware vSphere HA (High Availability) is a utility on alternative host servers to reduce application downtime. While VMware’s vSphere software that can restart failed in virtual machines (VMs).
- Server administrator enables by vSphere HA to pool physical servers on the same network into a logical group called a high availability cluster.
- System crash, power interruption or network failure server failure will occur. VSphere HA detects which VMs are down and restarts them on another stable system within the cluster.
- Workloads will failed while restarting on secondary systems is called failover.
![vsphere ha](https://cdn.wikitechy.com/interview-questions/vmware vsphere/vsphere-ha.png)