Fieuw,

after a few hours of searching and testen i’ve got it working!  Cacti can now shows disk io of our windows 2008 servers!

Here is how i did it:

• wmi-client
• libwmiclient1
  download them and install at http://www.orvant.com/packages/ (go to bottom)
• cacti wmi plugin, download the wmi.php and put it in your cacti/scripts/ folder.
  Make sure the webserver you are running can read the file!
  http://svn.parkingdenied.com/CactiWMI/trunk/
• cacti wmi templates
  Import this file(s) in the webinterface.
  I only imported the ‘all’ template (cacti_host_template_wmi_-_all.xml)
  http://svn.parkingdenied.com/CactiWMI/trunk/templates/
• create a file password file (credentials used for connecting to the windows server):
  /etc/cacti/cactiwmi.pw
  the contents must be in this format:

  username=admin
  password=supersecret
  domain=acme

• now create a new graph for your device with the (i assume you know how to do this!)
• select a graph with “(wmi)” behind it.
• tada!
  i’ve selected the disk io meter:
  
• if you want more information, you’ll have to go and see on the cacti forum.
  good luck !