topic Re: Sar Utility in Operating System - Linux

Sar Utility

Ian Derringer — Wed, 04 May 2005 12:47:37 GMT

Hi,
I am running RHAS 3.0 64-bits and my server is missing 'sar' utility. Would someone please direct me to where I can download this rpm file for my server?

Thank you in advance.

Ian

Re: Sar Utility

Alex Lavrov. — Wed, 04 May 2005 15:40:22 GMT

You need "sysstat" rpm. I believe this one will do it:

sysstat-5.0.5-5.rhel3.src.rpm

http://linuxsoft.cern.ch/repository/ia64updates/sysstat-5.0.5-5.rhel3.ia64.html

But you can search for another hardware archeture, if it's not good enough.

It's src rpm, so you'll have to build rpom from it, this is how you do it:

rpmbuild --rebuild
and then, install it:
rpm -Uvh

Re: Sar Utility

Gopi Sekar — Thu, 05 May 2005 00:52:34 GMT

this utility is part of sysstat rpm. it should be available in first or second cd of your RH cd set.

Re: Sar Utility

Vipulinux — Thu, 05 May 2005 06:45:49 GMT

Hi

You need the foll rpm to use sar

ftp://fr2.rpmfind.net/linux/redhat/updates/9/en/os/i386/sysstat-4.0.7-4.rhl9.1.i386.rpm

Rgds

Re: Sar Utility

Alex Lavrov. — Thu, 05 May 2005 06:48:26 GMT

Vipul,
why to install old rpm for rh9.1?

There is a new version for redhat enterprise .....

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 08:42:22 GMT

Also, I am running RHAS 3.0 64-bits version as well.

Thanks,

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 10:00:36 GMT

Many thanks to Alex for pointing me to the right direction. Now, I have the systats installed. I need help to write a quick batch job to do sar -B or iostats at every 15 mins. Would someone please help!!

Thank you in advance.

Ian

Re: Sar Utility

Alex Lavrov. — Thu, 05 May 2005 10:58:08 GMT

Just put this command in crontab (man crontab) and redirect the output to some file:

sar bla bla bla >> /tmp/sar.log

That's it.

(Btw, you can also assign some points to the ppl that helped you!)

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 14:44:30 GMT

Great! Does it keep multiple versions out there or something I have to do to give it a new name every time it runs?? If yes, what would be the easiest way to do that?

Thanks so much!!

Ian

Re: Sar Utility

Alex Lavrov. — Thu, 05 May 2005 14:52:01 GMT

if you use ">>", it appends to the file. It does not remove it, so you'll see output one after another. To make it more clear you can do this in the script:

output_file="/tmp/blalba.log"
now_date=`date`

echo "============ $now_date ===========" >> $output_file
sar bla bla bla >> $output_file
echo "==================================" >> $output_file

So, you'll see in the file somthing like this:

============= 20/5/2005 14:35:23 ===========
bla bla bla
bla bla bla
============================================

============= 20/5/2005 14:50:23 ===========
bla bla bla
bla bla bla
============================================

and so on ....

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 16:24:23 GMT

Alex,
I am getting an EOF error after I tried running the script. Any ideas?

Thanks,
Ian

Re: Sar Utility

Alex Lavrov. — Thu, 05 May 2005 16:33:22 GMT

Can you attach the script you are trying to run? Probably some error in syntax.

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 18:32:04 GMT

Here it is:

./perfmon_stats: line 13: unexpected EOF while looking for matching `"'
./perfmon_stats: line 17: syntax error: unexpected end of file

Script:
# !/bin/bash
. $HOME/.bash_profile
#############################################
clear
output_file="/tmp/perfmon.log
now_date=`date`
echo " "
echo "--------------------------- $now_date -------------------------" >> $output_file
sar -b >> $output_file
EOF
exit

Thanks,
Ian

Re: Sar Utility

Ian Derringer — Thu, 05 May 2005 23:58:46 GMT

Hi,
Don't worry...I got it to work. Hopefully, I can setup the cron tab to run every 15 minutes or so.

Thanks,
Ian

Re: Sar Utility

Raimo Lesonen_1 — Fri, 06 May 2005 03:11:05 GMT

Put a line like this in your crontab:
0 7-16 * * 1-5 /usr/lib/sa/sa1 300 12 &

This will collect all sar-data into daily files in /var/log/sa-directory. Then you can later get some historical data using
sar [ options... ] -f /var/log/sa/saxx.

Re: Sar Utility

Gopi Sekar — Fri, 06 May 2005 03:52:43 GMT

the problem is variable declaration of $output_file, double quote is not closed

to make it run every 15 mins all through the year, following is the crontab entry

*/15 * * * * performance_script

Hope this helps,
Gopi

Re: Sar Utility

Ian Derringer — Fri, 06 May 2005 11:52:01 GMT

This is what my crontab looks like:
*,5 * * * * /home/admin/sysmon/perfmon_stat root 1>/dev/null 2>&1
*,5 * * * * /home/admin/sysmon/
perfmon_stat_2 root 1>/dev/null 2>&1

However, it's executing every 1 minute - What
s with that?? Help!!

Thanks,
Ian

Re: Sar Utility

Alex Lavrov. — Fri, 06 May 2005 16:02:37 GMT

You have a mistake there, instead of "*,5" put as it was said "*/15" and it will work.

Re: Sar Utility

Ian Derringer — Fri, 06 May 2005 23:27:29 GMT

Got it!!

Thanks everyone!

Ian