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sar

sysstat in ubuntu

Sat, 01/26/2008 - 23:30 — wizap

If you apt-get install sysstat, and sar returns:

Cannot open /var/log/sysstat/sa27: No such file or directory

Sar needs to be enabled before it can be used. The error message in this case is completely useless, and the solution I have found is as below:

Enable sysstat data collection by doing

# dpkg-reconfigure sysstat

or manually by changing value of ENABLED from "false" to "true" in "/etc/default/sysstat".

Then start sysstat via:

# /etc/init.d/sysstat start

Check "/var/log/sysstat/" for the missing file.

Run sar after about 10 minutes to see the collected data.

# sar -A

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