In the last episode (Oct 15), Josh Paetzel said: > 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.
If you apply the patch at http://www.freebsd.org/cgi/query-pr.cgi?pr=bin/68840, you will be able to get %busy stats out of iostat. You can also try installing net-snmp and polling the diskIOLA5 value for the disk, but on my system at least, the values don't seem to make sense (I have seen numbers from -2546 to 3000). -- Dan Nelson [EMAIL PROTECTED] _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
