Helpful one liners for testing drive performance

drive_performance_tests.sh

#!/bin/bash

# Writes zeroes to a drive and reports transfer rate
# From here: https://linuxhint.com/benchmark_hard_disks_linux/
cd /mnt/drive
dd if=/dev/zero of=benchfile bs=4k count=200000 && sync; rm benchfile

# Write & read performance
# Writes 1.6GB file to drive and then copies the file to another drive (should be SSD)
cd /mnt/drive
echo "READ\n"
dd if=/dev/zero of=benchfile bs=4k count=400000
echo "WRITE\n"
rsync -ah --progress benchfile ~/benchfile
rm benchfile && rm ~/benchfile

# Tests cache and block speed performance
hdparm -tT /dev/sdX