What sequence of steps should an administrator take to clear an alarm in vSphere Client if the host has failed?

To clear an alarm in vSphere Client for a host that has failed, the sequence that involves selecting the alarm and then choosing "Reset to Green" is the correct method. This approach acknowledges that the issue has been addressed or resolved, allowing the system to update the alarm state accordingly.

When an alarm is triggered, it indicates that there is an issue that needs attention. Choosing "Reset to Green" effectively tells the management system that the problem has been mitigated and the host is back to a healthy state. This action is essential for maintaining clear visibility into the status of the system and ensuring that administrators are not overwhelmed with alarms that no longer reflect the current state of the infrastructure.

This process contrasts with simply acknowledging the alarm (which would make it less visible but not resolve the underlying issue) or deleting the alarm definition altogether, which can lead to loss of important alerting capabilities in the future. Furthermore, checking Skyline Health or deleting alarm definitions does not effectively communicate that the failure has been resolved for that specific instance. Therefore, using the "Reset to Green" function is the most appropriate method for accurately managing alarm statuses in this situation.