diff --git a/inventory/group_vars/faf-stg b/inventory/group_vars/faf-stg
index 50147d2acd..fda1fc1650 100644
--- a/inventory/group_vars/faf-stg
+++ b/inventory/group_vars/faf-stg
@@ -8,3 +8,9 @@ sudoers: "{{ private }}/files/sudo/arm-retrace-sudoers"
 nagios_Check_Services:
   nrpe: false
   swap: false
+
+# kernel SHMMAX value
+kernel_shmmax: 687194767
+shared_buffers: "1GB"
+effective_cache_size: "3GB"
+