diff --git a/group_vars/zm.yml b/group_vars/zm.yml
index d5eac14..2fd0b6b 100644
--- a/group_vars/zm.yml
+++ b/group_vars/zm.yml
@@ -1,6 +1,8 @@
 ---
 datadisks:
   - 500
+mem_size: 4096
+num_cpus: 2
 
 network_vip_interfaces:
   - device: eth1