System Monitoring Script (KSH)

[ponetguy2]

Here is a usefull monitoring script. Please make sure you have sufficient disk space before running this script. One can also edit the time interval per command within the script.

Enjoy,




#System Resource Monitoring Script
##################################################################################################################
#To help you easily gather various system resource usage statistics, you can use the following script.
#This script runs commands such as vmstat, iostat, netstat and so on over a specified interval.
#It places a copy of the output in the /tmp directory, where you can examine system resource usage
#statistics in a centralized location. Since this is a simple Korn shell script, you can easily
#modify the script to suit your needs. For example, you can change the interval the script
#uses to sample system activity, the location of the output directory, and more.
#To use this script:
#
#Copy the contents inside the lines to the file name of your choice (for example, sys_mon.ksh).
#Make the file executable using the chmod command:
#% chmod u+x sys_mon.ksh
#Run the script:
#% sys_mon.ksh
#Note - This script is provided as a courtesy. Usage, support and modifications are left solely up to the user.
###################################################################################################################





!/bin/ksh


LOGDIR="/tmp/test"
mkdir $LOGDIR

NETSTAT_OUTFILE="$LOGDIR/netstat.out"
MPSTAT_OUTFILE="$LOGDIR/mpstat.out"
VMSTAT_OUTFILE="$LOGDIR/vmstat.out"
IOSTAT_OUTFILE="$LOGDIR/iostat.out"
PS_OUTFILE="$LOGDIR/ps_aux.out"
INTERVAL=5
COUNT=10
TIME=`expr $INTERVAL \* $COUNT`
TIMEPLUS=`expr $TIME + 5`
X=1


while [ $X != 200 ]
do

echo "" >> $PS_OUTFILE
date >> $PS_OUTFILE
/usr/ucb/ps -aux >> $PS_OUTFILE &

echo "" >> $MPSTAT_OUTFILE
date >> $MPSTAT_OUTFILE
mpstat $INTERVAL $COUNT >> $MPSTAT_OUTFILE &
MPSTATPID=$!

echo "" >> $VMSTAT_OUTFILE
date >> $VMSTAT_OUTFILE
vmstat $INTERVAL $COUNT >> $VMSTAT_OUTFILE &
VMSTATPID=$!

echo "" >> $IOSTAT_OUTFILE
date >> $IOSTAT_OUTFILE
iostat -xp $INTERVAL $COUNT >> $IOSTAT_OUTFILE &
IOSTATPID=$!

echo "">> $NETSTAT_OUTFILE
date >> $NETSTAT_OUTFILE
netstat -i $INTERVAL >> $NETSTAT_OUTFILE &
NETSTATPID=$!

echo "mpstat $MPSTATPID"
echo "vmstat $VMSTATPID"
echo "iostat $IOSTATPID"
echo "netstat $NETSTATPID"

echo "sleeping for $TIMEPLUS"
sleep $TIMEPLUS

echo "sleeping done"

kill -9 $NETSTATPID

X=`expr $X + 1`
done

Carlo Reyes

Technology/Systems - Delivery
Networks and Infrastructure

Chicago Customer Technical Support

 

[bpk3456]

Thank you very much for the script and it is very usefull to many admins, here my case is diffrent as i don't know of networks though iam consider as sys admin.
i would appreciate it if you can give me more details of what the out shows and how to analysis it.

Thanks in advance.

Bonagiri
pbonagir@in.ibm.com