Date: Sat, 15 Oct 2005 10:48:39 -0500 From: Josh Paetzel <josh@tcbug.org> To: questions@freebsd.org Subject: Gathering statistics on disk usage Message-ID: <200510151048.39626.josh@tcbug.org>
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I am trying to set up mrtg to graph disk usage. I've tried using the output of iostat to provide me with usage in MB/s. The problem with this is that moving data from disk to disk on the system causes the usage to jump to around 30MB/s. Even with mrtg configured to draw the graphs logarithmically they basically blow up and the normal transfers are not really visable. systat -vm gives statistics on disk usage with a percent busy field. This stat would be easier to graph and I would like to use it. My problem is that I can't seem to extract the output of systat properly. I've tried doing systat -vm | tail -n -1 and that doesn't work. I've also tried systat -vm > somefile.txt and that doesn't work. There doesn't seem to be a way to get systat to run once and then quit either. Can anyone think of a way to either capture systat's output or recommend a utility that will give me a % busy output? I've tried iostat without success. -- Thanks, Josh Paetzel
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