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sysstat in ubuntu

Submitted by wizap on Sat, 01/26/2008 - 23:30

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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i have reinstall

Submitted by Anonymous on Sun, 09/12/2010 - 22:25.

i have reinstall sysstat:
apt-get install -fy sysstat
then install zimbra server ok, anyone same me?

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sar

Submitted by Anonymous on Wed, 01/07/2009 - 03:51.

Instanteneous values can also be shown using the commandline "interval" and "count" options, e.g.:

# sar -u 1 5
[uname output]

08:46:40        CPU     %user     %nice   %system   %iowait    %steal     %idle
08:46:41        all      1.00     99.00      0.00      0.00      0.00      0.00
08:46:42        all      0.00    100.00      0.00      0.00      0.00      0.00
08:46:43        all      0.00     99.00      1.00      0.00      0.00      0.00
08:46:44        all      0.00    100.00      0.00      0.00      0.00      0.00
08:46:45        all      1.00     99.00      0.00      0.00      0.00      0.00
Average:        all      0.40     99.40      0.20      0.00      0.00      0.00

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