When selecting a node as a failover target, VCS selects the system that meets the service group's prerequisites and has the highest available capacity. If multiple systems meet the prerequisites and have the same available capacity, VCS selects the system appearing lexically first in the SystemList.

Systems having an available capacity of less than the percentage set by the LoadWarningLevel attribute, and those remaining at that load for longer than the time specified by the LoadTimeThreshold attribute invoke the loadwarning trigger.