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devs="$dev0 $dev1 $dev2"
set_up_test()
{
mdadm -Cv -R -n 3 -l5 $md0 $devs --assume-clean --size=50M || die "create array failed"
mdadm -a $md0 $dev3 $dev4 || die "failed to bind new disk to array"
echo 1000 > /sys/block/md0/md/sync_speed_max
}
clean_up_test()
{
mdadm -S $md0
}
trap 'clean_up_test' EXIT
set_up_test || die "set up test failed"
# set up replacement
echo want_replacement > /sys/block/md0/md/rd0/state
sleep 1
# trigger reshape
echo frozen > /sys/block/md0/md/sync_action
mdadm --grow -l 6 $md0
sleep 1
# reassemeble array
mdadm -S $md0 || die "can't stop array"
mdadm --assemble $md0 $devs $dev3 $dev4 || die "can't assemble array"
exit 0
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