Sar Utility

[Ian Derringer]

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

[Alex Lavrov. · Accepted solution]

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

[Gopi Sekar]

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

[Vipulinux]

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

[Alex Lavrov.]

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

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

[Ian Derringer]

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

Thanks,

[Ian Derringer]

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

[Alex Lavrov.]

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!)

[Ian Derringer]

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

[Alex Lavrov.]

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 ....

[Ian Derringer]

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

Thanks,
Ian

[Alex Lavrov.]

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

[Ian Derringer]

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

[Ian Derringer]

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

[Raimo Lesonen_1]

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.

[Gopi Sekar]

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

[Ian Derringer]

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

[Alex Lavrov.]

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

[Ian Derringer]

Got it!!

Thanks everyone!

Ian