metrics-iostat-extended.rb in sensu-plugins-io-checks-1.0.1

- old
+ new

@@ -1,9 +1,9 @@
 #! /usr/bin/env ruby
 #  encoding: UTF-8
 #
-#   iostat-extended-metrics
+#   metrics-iostat-extended
 #
 # DESCRIPTION:
 #   This plugin collects iostat data for a specified disk or all disks.
 #   Output is in Graphite format. See `man iostat` for detailed
 #   explaination of each field.
@@ -17,11 +17,18 @@
 # DEPENDENCIES:
 #   gem: sensu-plugin
 #   gem: socket
 #
 # USAGE:
+#   Collect metrics for all disks
+#   metrics-iostat-extended.rb
 #
+#   Collect metrics for /dev/sda for 3 seconds
+#   metrics-iostat-extended.rb -d /dev/sda -i 3
+#
 # NOTES:
+#   The iostat command must be installed. On Debian/Redhat systems
+#   iostat is part of the sysstat package.
 #
 # LICENSE:
 #   Peter Fern <ruby@0xc0dedbad.com>
 #   Released under the same terms as Sensu (the MIT license); see LICENSE
 #   for details.