#! /bin/bash
mdadm=/home/martin/mdadm/mdadm
n=1
log=$(printf /var/tmp/md-%04d.log $n)
while [ -e $log ]; do
    n=$((n+1))
    log=$(printf /var/tmp/md-%04d.log $n)
done
echo log=$log

exec 3>&2
exec 1>$log 2>&1

TRAP=
trap 'eval "$TRAP"' 0

set -x
setup_lo() {
    for i in `seq 8 13`; do
	mknod /dev/loop$i b 7 $i
	losetup /dev/loop$i /var/tmp/mdtest$i
	eval "dev$i=/dev/loop$i"
    done >/dev/null 2>&1
    TRAP="cleanup_lo; $TRAP"
}

cleanup_lo() {
    for i in `seq 8 13`; do
	eval "losetup -d \$dev$i"
    done >/dev/null 2>&1
}

setup_lvm() {
    for i in `seq 8 13`; do
	eval "dev$i=/dev/tosh/rd$((i-7))"
    done
}

#setup_lvm
setup_lo

# for testing with IMSM instead of DDF
#export IMSM_NO_PLATFORM=1
#export IMSM_DEVNAME_AS_SERIAL=1
#export IMSM_TEST_OROM=1
#export MDADM_EXPERIMENTAL=1

dmesg -c >/dev/null
#date +"CREATE %H:%M:%S.%N"
$mdadm --quiet -CR /dev/md/ddf -e ddf -n 4 $dev8 $dev9 $dev10 $dev11 --auto=yes
$mdadm --quiet -CR /dev/md/vol1 $dev8 $dev9 $dev10 $dev11 -n 4 -l 5 -z 4000 -c 64 --auto=yes
$mdadm --quiet -CR /dev/md/vol0 $dev8 $dev9 $dev10 $dev11 -n 4 -l 10 -z 9000 -c 64 --auto=yes
$mdadm --quiet --wait /dev/md/vol[01]
#date +"WAIT %H:%M:%S.%N"

# get PID of mdmon for tracing
#for x in $(ps --no-heading -Lo lwp -C mdmon); do trace_cmd="$trace_cmd -p $x"; done

$mdadm --quiet --fail /dev/md/vol0 $dev11
#date +"FAIL %H:%M:%S.%N"

#strace -tt -x -o /tmp/md.str $trace_cmd &

$mdadm --quiet --add /dev/md/ddf $dev12
#date +"ADD %H:%M:%S.%N"

$mdadm --quiet --wait /dev/md/vol[01]
#date +"WAIT %H:%M:%S.%N"

cat /proc/mdstat
dmesg -c
$mdadm -E $dev11
$mdadm -E $dev12
$mdadm -Ss

# if strace was used above
#cat /tmp/md.str
set +x
egrep -i 'error|failed|rebuilding|Degraded,' $log >&3