diff --git a/raid-clear-all-caches b/raid-clear-all-caches
new file mode 100755
index 0000000..d79a3a7
--- /dev/null
+++ b/raid-clear-all-caches
@@ -0,0 +1,6 @@
+#!/bin/sh
+# Nico Schottelius, 2018-02-24
+# Copyright ungleich glarus ag
+
+# Removes entries for virtual drives without physical drives
+megacli -DiscardPreservedCache -Lall -aall