disk performance sar -d

[chin hyeon jung]

Hi ,all
I have very interstrang in performance
when i see disk performance using sar -d , the result is like this

00:00:00 device %busy avque r+w/s blks/s avwait avserv
00:10:00 c2t6d0 6.29 0.56 7 109 4.91 18.07
c3t6d0 4.42 0.53 6 105 4.78 13.18
c21t11d0 0.00 0.50 0 1 3.22 0.71
00:20:00 c2t6d0 5.01 0.55 6 100 5.03 18.12
c3t6d0 3.62 0.52 5 97 4.85 14.16
00:30:00 c2t6d0 4.42 0.73 5 98 6.11 18.31
c3t6d0 3.27 0.70 5 96 5.63 14.67
c21t10d4 0.00 0.50 0 1 2.40 0.83
c21t11d0 0.00 0.50 0 0 1.82 0.70
But I want to see the busiest disk or busiest avwait per time.
because I want to which disk is use disk_util_peak!
And if possible, let me know the average of %busy
Here is example of mine .but this is not display the busy of first raw and display every disk per interval.
also not show the time.
####### MONDAY#######
sar -d -f /tmp/KOLON/sa0612|while read DEVICE BUSY AV DUMMY
do
if [[ $BUSY = 0 && $AV = 0.0 ]]
then
echo "$BUSY">/dev/null
else echo "$BUSY ">>sa0612.j
fi
done

[harry d brown jr]

have you tried glance/measureware and perfview? You'll spend probably more time on writing the script, than the cost of the software.

live free or die
harry

[MANOJ SRIVASTAVA]

Hi Chin


There is another way .

go to ww.sarcheck.com and download a trial free version for 30 days , it is very simple to install and you get wonderful formatted o/p for the whole system . In case you like you can buy it from them . I have attached a sample report which we ran on our system for your refernce .


Manoj Srivastava

[Wong_3]

Hi,

I would recommend Glance which would give you more flexibility for system health monitoring. It should come with standard HPUX package when purchased a new server.

I would agree that writing a script would be more tedious and less rewarding than learning how to use Glance.

[chin hyeon jung]

Thanks all, But I have about 800 disk devices So glance show too many metrics .
these ars mostly use 0 %.
Then I think that how about the most used disk collection.
So this prob occured!!

[Paula J Frazer-Campbell]

Hi

Try this :-


sar -d 1 10 | grep Av | awk '{print $3,$2,$4,$5,$6,$7,$8}' | sort -u

Change the collection interval and times to suit.

Paula