diff --git a/metadata/service/control/cluster.yml b/metadata/service/control/cluster.yml
index 7bb8d31..f23aada 100644
--- a/metadata/service/control/cluster.yml
+++ b/metadata/service/control/cluster.yml
@@ -17,6 +17,7 @@
       scheduler_default_filters: "DifferentHostFilter,RetryFilter,AvailabilityZoneFilter,RamFilter,CoreFilter,DiskFilter,ComputeFilter,ComputeCapabilitiesFilter,ImagePropertiesFilter,ServerGroupAntiAffinityFilter,ServerGroupAffinityFilter"
       cpu_allocation_ratio: 16.0
       ram_allocation_ratio: 1.5
+      disk_allocation_ratio: 1.0
       logging:
       - engine: syslog
         facility: local0