Green Cloud Scheduler


Green Cloud Scheduler (GCS) augments OpenNebula clouds with energy-awareness for energy saving purposes The decrease in available resources fragmentation reduces the number of servers needed to host the virtual machines, leaving room for turning off the unused servers. For obtaining low fragmentation, virtual machines are migrated between servers to better exploit the available computing resources.

Energy impact

By using server consolidation and turning off the unused servers, GCS reduces the cloud infrastructure energy consumption. Depending on the cloud characteristics and workload type, the amount of energy savings can vary between 10% and 30%.