#!/bin/sh

DISK="$1"
FS="$2"
MNT="$3"
OPT="$4"

LOG="${FS}"
if [ -n "$OPT" ]; then
  LOG="${LOG}_${OPT}"
fi
LOG="${LOG}.txt"


function usage () {
  ssh -i id_rsa root@phenom \
    'du /vmfs/volumes/datastore1/test1/test1-flat.vmdk' >> "$LOG"
}


[ -z "$MNT" ] && { echo "usage: $0 <disk> <fs> <mnt> [<rm | sync | unmount | unmount50 | increase50 >]" >&2; exit 1; }

usage
fdisk "$DISK" || exit 1
usage
mkfs."$FS" "${DISK}1" || exit 1
usage
mount "${DISK}1" "$MNT" || exit 1
usage
sleep 120
usage
count=100
for i in {1..300}; do
  dd if=/dev/zero of="$MNT"/bla.img bs=1024k count=$count oflag=direct
  if [ "$OPT" = "rm" ]; then
    rm -f "$MNT"/bla.img
  fi
  if [ "$OPT" = "sync" ]; then
    sync
  fi
  if [ "$OPT" = "unmount" ]; then
    umount "$MNT" || exit 1
  fi
  if [ "$OPT" = "unmount50" -a $((i%50)) -eq 0 ]; then
    umount "$MNT" || exit 1
  fi
  if [ "$OPT" = "increase50" -a $((i%50)) -eq 0 ]; then
    umount "$MNT" || exit 1
  fi
  usage
  if [ "$OPT" = "unmount" ]; then
    mount "${DISK}1" "$MNT" || exit 1
  fi
  if [ "$OPT" = "unmount50" -a $((i%50)) -eq 0 ]; then
    mount "${DISK}1" "$MNT" || exit 1
  fi
  if [ "$OPT" = "increase50" -a $((i%50)) -eq 0 ]; then
    mount "${DISK}1" "$MNT" || exit 1
  fi
  if [ "$OPT" = "increase50" -a $((i%100)) -eq 0 ]; then
    count=$((count+100))
  fi
done
scp "$LOG" fjo@core:/data/fjo/results/