How to Email alert on disk space outage

Disk Utilization Email alert -vicidia linux

Topic: How to enable Email alert on disk space outage
How to enable Email alert on disk space outage

Overview:
           Most of times you will be facing mysql database crash error due to my hard disk out of space , Because of huge call Recordings in vicidial or goautodial server.
    
    so i decided to have a alert via email when my harddisk space reaches 90% .
Below is the script i used to get email alert when my hard disk reaches 90% full
thanks to : https://www.cyberciti.biz/

  Steps: Email alert once disk reaches 90% utilization

   Step 1: Create a bash script file

    Create a bash script file using vi edit as shown below
vi /usr/share/diskspacealert.sh
note: i created a file in /usr/share folder, change according to your requirement

   Step 2 : Bash Script

Copy past the below script in the file created in step 1
#!/bin/sh
# refered https://www.cyberciti.biz/tips/shell-script-to-watch-the-disk-space.html
# enter your mailed below for email alert
ADMIN="admin123@gmail.com"
# set alert level 90% is default
ALERT=90
df -HP | grep -vE '^Filesystem|tmpfs|cdrom' |
  while read partition size used free perc mnt ;
  do
    usep=$(echo $perc | tr -d '%' )
    if [ $usep -ge $ALERT ]; then
      echo "Running out of space \"$partition ($usep%)\" on $(hostname) as
  on $(date)" |
       mail -s "Alert: Almost out of disk space - $usep%" $ADMIN
    fi
  done 

Note *** change the admin123@gmail.com  to your mail id to which you want email alert

   Step 3 : make the script executable

    Use chmod command and provide read,execute permission for all users
copy paste the below command
chmod 755 /usr/share/diskspacealert.sh

   Step 4 : scheduling the scrip to run every day 

Setup a cronjob daily morning or whatever time you wish.
type  crontab -e  in the linux shell

then add the below line
0 10 * * * /usr/share/diskspacealert.sh
this will run the script every day 10 am

Note : ***
you must have installed and configured 
Sendmail  
postfix
mailx

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1 Comments
  • gopi baskar
    gopi baskar April 4, 2022 at 11:17 AM

    Email alert when hard disk is full in linux

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