diff --git a/tasks/storage.yml b/tasks/storage.yml
index f9fd697..64d91c5 100644
--- a/tasks/storage.yml
+++ b/tasks/storage.yml
@@ -3,7 +3,8 @@
     - name: Create volume group '{{ mongodb_lvm_vg }}'
       lvg:
         vg: "{{ mongodb_lvm_vg }}"
-        pvs: "{{ mongodb_lvm_pvs|join(',') }}"
+        pvs: "{{ mongodb_lvm_pvs | join(',') }}"
+        pesize: "4"
 
     - name: Create logical volume '{{ mongodb_lvm_lv }}'
       lvol: