Script for checking disk performance using smartctl, dd and hdparm. Requires CentOS installed :)

diskcheck.sh

#!/bin/bash

#Date 20/10/2017 , Version 1.0.1
#Authors : Arun D, Nikhil Sasi
#Requirements : CentOS installed
#Note : Not coded for checking Hardware RAID arrays

#Things to do : Log file generation

echo -n "SMARTCTL test selection, Enter [short/long]: "
read tytest
sleep 2

#SCRIPT STARTS

echo "========================================================="

#To check if logged in user is root



if [ $(id -u) -ne 0 ]; then
    echo "Run this script as a Root user only" >&2
    exit 1
else    
    echo "Root user logged in"
fi

echo "========================================================="

#Check if smartmontools is installed

rpm -q smartmontools
exit_status=$?
if [ $exit_status -gt 0 ];then
        echo "Installing Smartmontools"
        yum -y install smartmontools
else
        echo "SmartMontools already installed."
fi

echo "========================================================="

#SMARTCTL Checks

echo "Initiating SmartCtl check"

for i in `lsblk | grep -i disk | awk '{print $1}'`
do
    echo "======/dev/$i========="
    smartctl -a /dev/$i|grep -E -A 1 'Device Model'
    echo " "
    echo "Terminating any checks started earlier"
    smartctl -X /dev/$i | grep -A 1 "Abort SMART"
    echo " "
    if [ "$tytest" == "short" ];then
        echo "Initiating short test"
        smartctl -t short /dev/$i | grep "minutes" | echo "Test for /dev/$i will be completed in `awk '{print $3}'` minutes";
        else
        echo "Initiating long test"
        smartctl -t long /dev/$i | grep "minutes" | echo "Test for /dev/$i will be completed in `awk '{print $3}'` minutes";
    fi
done

echo "========================================================="

echo " DISK check Status"

echo "------------------"

## smarttest completion status

disk_status=100
while [ $disk_status -gt 0 ]
do
        for i in `lsblk | grep -i disk | awk '{print $1}'`
        do
                while [ `smartctl -c /dev/$i |grep "Self-test execution status:"| awk '{print $5}'|sed 's/.$//'` -ge 0 ]
                        do
                        if [ `smartctl -c /dev/$i |grep "Self-test execution status:"| awk '{print $5}'|sed 's/.$//'` -eq 0 ];then
                                echo "Smartctl test completed for /dev/$i"
                                disk_status=0
                                break;
                        fi
                        if [ `smartctl -c /dev/$i |grep "Self-test execution status:"| awk '{print $5}'|sed 's/.$//'` -gt 0 ];then
                                echo "`smartctl -a /dev/$i|grep  -A 1 'Self-test execution status:' | awk 'FNR==2{print $1}'` remaining for /dev/$i"
                                disk_status=100
                                break;
                         fi
                done
        done
sleep 60;
done


echo "Smart Test results"
for i in `lsblk | grep -i disk | awk '{print $1}'`
        do  
            smartctl -a /dev/$i
        done
        
echo "========================================================="

# HDPARM check for disk READ Speeds

echo " HDPARM checks for DISK READ SPEED"
for i in `lsblk | grep -i disk | awk '{print $1}'`
        do
            echo "Cached Disk test for /dev/$i"
            hdparm -Tt /dev/$i | grep ' disk reads'| awk '{printf "%7s %7s\n",$11,$12}'
            echo "Direct Disk test for /dev/$i"
            hdparm --direct -Tt /dev/$i | grep ' disk reads'| awk '{printf "%7s %7s\n",$11,$12}'
        done

echo "========================================================="


#DD command for disk read speed check

echo " DD check for DISK WRITE SPEED"

for i in `lsblk | grep -i disk | awk '{print $1}'`
        do  
            if [ "`df -h | grep "/boot" | awk '{print $1}' | awk -F "/" '{print $3}' | sed -e 's/.$//'`" == "$i" ]; then
                echo "OS INSTALLED DISK /dev/$i"
                echo "Test with no parameter"
                dd if=/dev/zero of=/tmp/test.img bs=1M count=1024 |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with Direct parameter"
                dd if=/dev/zero of=/tmp/test.img bs=1M count=1024 oflag=direct |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with dsync parameter"
                dd if=/dev/zero of=/tmp/test.img bs=1M count=1024 oflag=dsync |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with big size file with direct parameter"
                dd if=/dev/zero of=/tmp/test.img bs=1G count=3 oflag=direct |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
            else
                echo " Additional Disk /dev/$i"
                echo "Test with no parameter"
                dd if=/dev/zero of=/dev/$i bs=1M count=1024 |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with Direct parameter"
                dd if=/dev/zero of=/dev/$i bs=1M count=1024 oflag=direct |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with dsync parameter"
                dd if=/dev/zero of=/dev/$i bs=1M count=1024 oflag=dsync |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
                echo "Test with big size file with direct parameter"
                dd if=/dev/zero of=/dev/$i bs=1G count=3 oflag=direct |& awk 'FNR==3{printf "%4s %3s\n",$8,$9}'
            fi
        done

echo "========================================================="
        
echo "DISK TESTS COMPLETE"

it's a self destructive script