Conventionally, a power management system reacts to power outages by utilizing backup power provided by the backup generators, batteries, or other backup power sources. The conventional power management system generates a notification to inform a remote client that the power source supplying a collection of servers has changed over to a backup power source from a primary power source. An administrator that receives the notification from the remote client decides how to react to the switch from the primary power source while the collection of servers continue to operate on the backup power sources, which have a limited supply of power.
Typically, the conventional power management systems continue operating the collection of servers on the backup power source until the primary power source is reestablished or until the backup power source is exhausted. In some instances, the conventional power management systems are configured with shutdown threshold power levels that are associated each backup power source. When the collection of servers operating on the backup power sources consume backup power to the extent that power levels of the backup power sources reach the shutdown threshold power level, all servers in the collection of servers are shutdown by the conventional power management systems.
The conventional power management systems only perform a logical shutdown on all servers in the collection of servers and do not continue operating critical servers on the backup power source after the shutdown threshold is satisfied. In other words, the conventional power management systems fail to consider the relative importance of each server in the collection of servers during a power outage.