diff --git a/nodes/home/nas.py b/nodes/home/nas.py
index d754313..a4e0a45 100644
--- a/nodes/home/nas.py
+++ b/nodes/home/nas.py
@@ -1,3 +1,5 @@
+# Dell Local Node Manager running on <http://172.19.138.20:4679/>
+
 nodes['home.nas'] = {
     'hostname': '172.19.138.20',
     'bundles': {
diff --git a/nodes/home/usv01.py b/nodes/home/usv01.py
index 3696c2e..8730260 100644
--- a/nodes/home/usv01.py
+++ b/nodes/home/usv01.py
@@ -10,3 +10,8 @@ nodes['home.usv01'] = {
         },
     },
 }
+
+# Every system which is connected to the USV needs to have Dell Local
+# Node Manager installed:
+# <https://www.dell.com/support/home/de-de/drivers/driversdetails?driverid=038h3>
+# A backup of this file is available in home.nas:/storage/nas