Testing FreeBSD ZFS... Also, how to create millions of files... CAUTION, ONLY DO THIS ON A TEST SYSTEM

test.sh

#!/bin/sh

#########################################
# CAUTION, ONLY DO THIS ON A TEST SYSTEM
#########################################

# use GELI to onetime encrypt 4 hard drives to test with
for i in `seq 0 3` ; do geli onetime /dev/ada$i ; done

# append the ELI devices to a DEV variable
for i in `seq 0 3` ; do DEV="$DEV /dev/ada$i.eli" ; done

# create a ZPOOL named test made up of a mirror of the encrypted devices
zpool create test mirror $DEV

# create a pseudo-random 1MB test file
dd if=/dev/urandom of=/test/0 bs=1m count=1

# copy said test file many times, to a new file using the numbers in a sequence
# this makes use of the l2arc cache
for i in `seq 1 4000000` ; do cp -v /test/0 /test/$i ; done

# or you can create pseudo random files
for i in `seq 1 4000000` ; do dd if=/dev/urandom of=/test/$i bs=1m count=1 ; echo $i ; done