diff --git a/metadata/service/common/cluster.yml b/metadata/service/common/cluster.yml
index 6974fe6..09ca6c2 100644
--- a/metadata/service/common/cluster.yml
+++ b/metadata/service/common/cluster.yml
@@ -7,6 +7,9 @@
     ceph_mon_node03_hostname: cmn03
   ceph:
     common:
+      config:
+        global:
+          mon_max_pg_per_osd: 600
       enabled: true
       version: ${_param:ceph_version}
       fsid: ${_param:ceph_cluster_fsid}
@@ -17,4 +20,3 @@
           host: ${_param:ceph_mon_node02_address}
         - name: ${_param:ceph_mon_node03_hostname}
           host: ${_param:ceph_mon_node03_address}
-