High Load, Low CPU/RAM/iowait ?
 

Load is at around 170.

CPU under 6%
RAM 80M in swap
iowait under 7%

What's the first step to dianoising where the problem is? I have this problem at several servers :(

Use the search button - been quite a popular subject recently.
here's a recent threadto get you started ... ;)

Edit: Sorry newlinuxnewbie, didn't notice it was you posting (it was late here) - thought it was another user and your thread might be helpful.
Guess not.