Checking the disk for errors and bad sectors

soban — Tue, 12 Oct 2021 16:31:11 +0000

This script helps to notify me by e-mail about the condition of the disk. Remember to indicate the disk accordingly – in this case it is “/dev/sda” and change the e-mail address from “soban@soban.pl” to your own. Save the script in “/root/checkbadsector.sh“:

#!/bin/bash
date > /root/badsectortest.txt
badblocks /dev/sda -v &>> /root/badsectortest.txt
hoursworkhdd=`smartctl --all /dev/sda | grep Power_On_Hours | awk '{print $10}'`
dayworkhdd=`expr $hoursworkhdd / 24`
yesworkhdd=`expr $dayworkhdd / 366`
echo -e "Hours working hdd:" >> /root/badsectortest.txt
echo -e $hoursworkhdd >> /root/badsectortest.txt
echo -e "Days working hdd:" >> /root/badsectortest.txt
echo -e $dayworkhdd >> /root/badsectortest.txt
echo -e "Years working hdd:" >> /root/badsectortest.txt
echo -e $yesworkhdd >> /root/badsectortest.txt
date >> /root/badsectortest.txt
cat /root/badsectortest.txt | /usr/bin/mail -s "badsector - `date`" soban@soban.pl

You can also download it from https://soban.pl/bash/checkbadsector.sh:

# cd
# wget https://soban.pl/bash/checkbadsector.sh

Remember to grant permission to perform it:

# chmod +x /root/checkbadsector.sh

On my server I added it once a month so that it would be performed periodically in the crontab:

# crontab -l | grep checkbadsector
30 17 20 * * /root/checkbadsector.sh > /dev/null 2>&1

You should receive an email similar to the one below:

Good luck and I wish you no errors!

Artykuł Checking the disk for errors and bad sectors pochodzi z serwisu soban.

Archiwa Bad sectors - soban

Checking the disk for errors and bad sectors