Sample HDD test script

testhdd.sh

#!/bin/sh
#

COUNT=2048
BLOCKSIZE=1M

while getopts "c:b:" opt; do
  case $opt in
    c)
      COUNT=$OPTARG
      ;;
    b)
      BLOCKSIZE=$OPTARG
      ;;
  esac
done

echo "tests with $COUNT blocks of ${BLOCKSIZE}b"

echo
echo "testing pseudo-IO performances - 1st Pass"
dd if=/dev/zero of=/dev/null bs=$BLOCKSIZE count=$COUNT

echo
echo "testing IO write performances - 1st Pass"
dd if=/dev/zero of=PERFTEST bs=$BLOCKSIZE count=$COUNT oflag=direct

echo
echo "testing IO read performances - 1st Pass"
dd if=PERFTEST of=/dev/null bs=$BLOCKSIZE count=$COUNT

echo
echo "testing IO read performances - 2nd Pass"
dd if=PERFTEST of=/dev/null bs=$BLOCKSIZE count=$COUNT

echo
echo "testing IO write performances - 2nd Pass"
dd if=/dev/zero of=PERFTEST bs=$BLOCKSIZE count=$COUNT oflag=direct

rm -f PERFTEST