diff --git a/configuration.md b/configuration.md
index 52efe1687ec6e232993e09683b4459280b6f1a9f..9b1f32366b01a0372c0d932abdbe28ae74051589 100644
--- a/configuration.md
+++ b/configuration.md
@@ -1,4 +1,9 @@
 ### Configuration
+## OSD memory Configuration
+```
+ceph daemon /var/run/ceph/ceph-osd.22.asok config show | grep memory
+ceph daemon  osd.22 config set osd_memory_target 2147483648
+```
 ## Crush map
 change the device class of an OSD if needed
 ```