| Ganglia Node Image Legend | |
| Node Image | Meaning | 
| Red | Over 100% Utilization. Utilization is: (1 min load) / (number of CPUs) * 100%. | 
| Orange | 75-100% | 
| Yellow | 50-74% | 
| Green | 25-49% | 
| Blue | 0-24% | 
| Crossbones | The node is dead. We consider a node dead when the reporting node has not heard from it in 60 sec. |