Shell Programming and Scripting

Hi

I am still learning shell scripting, so for complex stuff, I need help.
I would like to have a script that produces sar monthly reports, so that I can produce a graph from it!
The idea is to use

Code:

/var/adm/sa/<dir of sa files>

Looking to hear from you.

regards

Please post the code that you have written so far. Check out ksar : a sar grapher

Please post what Operating System and version you have and what Shell you are using.

Please post the "sa1" and "sa2" entries from you crontab and any special changes you might have made such that these scripts keep more than a rolling month's worth of data. On most systems "sa1" and "sa2" are scripts which you can read. Beware that the "sa" files can get very large if you snapshot too frequently. Have a look at you "sa" directory and see what range of data you have available.
Check check and double check that your "sa" scripts are set up correctly and that one "sa" file only contains one day's data.

Always have in mind why you are producing the report(s), what the output report(s) should look like, and what you are going to analyse.

We once found that a simple analysis of the day-by-day CPU usage average for one key system was meaningless because it was dominated by an overnight backup. Restricting the analysis to core hours was more interesting but a lot more work.

Hi

The operating system is solaris 10, the cron entries are:

Code:

#sar data collection
0 * * * 0-6 /usr/lib/sa/sa1
0,15,30,45 8-23 * * 1-5 /usr/lib/sa/sa1
5 23 * * 1-5 /usr/lib/sa/sa2 -s 7:00 -e 19:01 -i 1200 -A
#

and

Code:

root@nikira # sar -f /var/adm/sa/sa22 -s 15:00 -e 16:00 | more

SunOS nikira 5.10 Generic_127127-11 sun4u    03/22/2012

15:00:00    %usr    %sys    %wio   %idle
15:15:00      38      23       0      39
15:30:00      26      20       0      54
15:45:00      28      17       0      55
16:00:00      29       9       0      62

Average       30      17       0      52
You have new mail in /var/mail//root
root@nikira #

Regards

Worth reading the "sa2" script in case it deletes files before you have saved them. If you need to analyse a month's worth, you'll need a script to save the sa<nn> files daily smewhere where they don't get deleted and with a name (or directory name) containing the month and year.

You seem to be 9/10 there already. The trick is to get "sar" to do the maths and then just plot the average line.

There's a lot of interesting statistics in those files which can give you early warning of overload.

Good luck.