[Techtalk] Diagnosing server problems

Cynthia Kiser cnk at ugcs.caltech.edu
Thu Sep 29 11:53:00 EST 2005


> I wrote a small shell wrapper around vmstat, to write its output to a 
> file about every 15 seconds. 

It only samples every 10 minutes, but your RedHat box will probably
have sar running on it by default. If you don't already have sar ('man
sar' or 'rpm -q sysstat'), 'sudo up2date-nox -u sysstat' should
install it for you.

You can get a number of stats for the day by using 'sar -<someletter>'.  
The hard part is interpretting those numbers.

-- 
Cynthia N. Kiser
cnk at ugcs.caltech.edu


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