Hardware component redundancy health—Proactive HA
Proactive HA is a vCenter (vCenter 6.5 and later) feature that works with OMIVV. When you enable Proactive HA, the feature safeguards your workloads by proactively taking measures based on degradation of redundancy health of supported components in a host.
After assessing the redundancy health status of the supported host components, the OMIVV appliance updates the health status change to the vCenter server. The available states of redundancy health status for the supported components (power supply, fans, and IDSDM) are:
- Healthy (Information)—component operating normally.
- Warning (Moderately degraded)—component has a noncritical error.
- Critical (Severely degraded)—component has a critical failure.
- All hosts that are added to a Proactive HA cluster may remain in the unknown state for a few minutes until OMIVV initializes them with their appropriate states.
- A vCenter server restart may put the hosts in a Proactive HA cluster into an unknown state until OMIVV initializes them with their appropriate states again.
When OMIVV detects a change in the redundancy health status of supported components (either through Traps or polling), the health update notification for the component is sent to the vCenter server. Polling runs every hour, and it is available as a fail-safe mechanism to cover the possibility of a Trap loss.