From a0ff15f717d7db3698bb314bad607352d7174a0f Mon Sep 17 00:00:00 2001
From: mwaeckerlin <marc@waeckerlin.org>
Date: Fri, 15 Dec 2017 16:54:08 +0100
Subject: [PATCH] updated help

---
 diskio.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/diskio.sh b/diskio.sh
index ec1d93f..0757bb8 100755
--- a/diskio.sh
+++ b/diskio.sh
@@ -22,7 +22,9 @@ DESCRIPTION
 
 Icinga plugin to check whether a given path is writable and checks the
 performance of the given path. Detects problems with the filesystem or
-specific io performance.
+specific io performance. Writes a test file using `dd` and reports
+write speed. It is recommended to use a subdirectory tmp for writing
+test files.
 
 EOF
                     exit;;