test-zfs.sh

#!/bin/sh

init_mirror="/dev/da3 /dev/da4"
mirrors="da5:da6 da7:da8 da9:da11 da12:da13 da14:da15"
zils="da2:da10"
zil_size="8g"
zfs_pool="tank"
out_file="/root/bonnie.csv"

bonnie_dir="/tank/bonnie"
bonnie_user="temp"


run_bonnie() {
	mkdir -p $bonnie_dir
	chown $bonnie_user $bonnie_dir
	bonnie++ -d $bonnie_dir -n 0 -m "$1" -f -b -u $bonnie_user >> $out_file
}

benchmark() {

	prefix=$1
	counter=1
	for m in $mirrors; do
		disk_a=$(echo $m |awk -F ':' '{print $1}')
		disk_b=$(echo $m |awk -F ':' '{print $2}')
		zpool add -f tank mirror /dev/${disk_a} /dev/${disk_b}
		run_bonnie "${prefix}.test.${counter}"
		counter=$(let $counter + 1)
	done
}

doit() {
	zil=$1

	echo "destroying ${zfs_pool}"
	zpool destroy $zfs_pool 
	echo "creating ${zfs_pool}"
	zpool create -f ${zfs_pool} mirror ${init_mirror} || exit $?

	if [ -z $zil ] || [ $zil -eq 0 ]; then
		prefix="no-zil"
	else
		prefix="zil"
		zil_a=$(echo $zils |awk -F ':' '{print $1}')
		zil_b=$(echo $zils |awk -F ':' '{print $2}')
		gpart destroy -F $zil_a
		gpart destroy -F $zil_b
		gpart create -s gpt $zil_a
		gpart create -s gpt $zil_b
		gpart add -t freebsd-zfs -s $zil_size $zil_a
		gpart add -t freebsd-zfs -s $zil_size $zil_b

		zpool add $zfs_pool log mirror /dev/${zil_a}p1 /dev/${zil_b}p1
	fi

	echo "[$prefix] Running initial test"

	run_bonnie "${prefix}.test.0"
	benchmark $prefix
}

echo > $out_file
doit 0 # no zil
doit 1 # with zil