Dear all,


am monitoring the disk size, how can I write a script that if a particular disk size
reaches a threshold value , it should mail a warning to me.. How can I get this done..
am using the following code to monitor :


*****************************************************************
[root@oracle monitor]# vi sysos.sh

set -xv

LOGFILE=/home/oraprod/monitor/sysos.log

echo "Oracle Production Server system log at $(date)" > "$LOGFILE"
# log vmstat. 3 * 5 second interval. Probably better than 1 second as it
# gives more time to average out the load analysis.


df -h >> $LOGFILE

echo "" >> "$LOGFILE"


cat $LOGFILE | mail -s "System status as of $(date +%d-%b-%Y)" webmail@master.com
***************************************************************************************

how can I add a threshold value.. such that if a particular mount point reaches 75% . it should send the warninig to me. meanwhile, if you can also advise me any enhancements in the above script


any inputs ?


Thanks
Yusuf

Hello Yusuf,

I would use awk to grab the percentage from the output of df -h and then check if it is greater than 75 (or any other threshold you want) and if so send the warning email.

The awk will be something like


On the other hand there are open source tools that you can use to monitor pretty much everything. If you have many things to look after maybe it is worth having a look at the monit project.


I hope this helps.