CPU MONITORING SCRIPT

[maxpayne]

Hi,

I need a script that can monitor the cpu utilization. If the cpu usage reached 90% it will send an sms alert. Thank you in advance.

[Peter Godron]

Hi,
if you have glance, please see:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=690675

otherwise,for example:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1057532

http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1022986

Please also read:
http://forums1.itrc.hp.com/service/forums/helptips.do?#33 on how to reward any useful answers given to your questions.

[Hein van den Heuvel]

Think about it... do you think this is the first time this requirement is showing up.
This problem is solved many times over, please (google) look aroudn for prior solutions, see how close they are to what you need and adpat if needed.

You may find that prior solutions also though the whole problem through for a little longer and refined that rules. For example... you just indicate "If the cpu usage reached 90%". I ask... for how long?
shoudl any spike trigger this? Any everage over n minutes?

Cheers,
Hein.

[Yogeeraj_1]

hi,

Have a look at SEP's script at:
http://www.hpux.ws/system.perf.sh

also, why are you worry about your CPU usage reaching 90?

When the CPU usage reaches 99% or even 100%, this is a good sign that your system is working well and it only when this situation persist over a long period that you should be "worried"

look into measureware also.

hope this helps!
kind regards
yogeeraj

[maxpayne]

Well,
Here is the script that I create, but it doesn't seems rite. It keep on sending email eventhough the cpu idle is 95%.

sar -u 1 1 |awk '{print $5}' | if [ "$5" -le 95 ]; then
echo "High CPU Utilization" | mailx -s 'cpu reach 85% PLS CALL ADMIN' admin@admin.com
fi

[Patrick Wallek]

Here's a script that should work better. Although I agree with previous posts that you do need to better define you requirements.

#!/usr/bin/sh
PCT=$(sar -u 1 1 | tail -1 | awk '{print $5}')
if (( ${PCT} <= 10 )) ; then
echo "CPU Usage is currently at ${PCT}. Please call an admin" | mailx -s "CPU Usage at ${PCT}" me@my.com
fi

[Peter Godron]

Hi,

Isn't field 5 "%idle" ?
So, you want to get mail if the CPU is Less or equal to 95% idle ?!

Can you show field 5 in your debug ?

[Patrick Wallek]

Yes, field 5 is "%idle". That is why in my script I modified it to be <= 10 so that the if statement will be true only if CPU usage is 90% or greater.