12 nblocks2=`expr $nblocks1 - 1`
13 nblocks3=`expr $nblocks2 / 2`
15 mdconfig -a -t malloc -s $nblocks1 -u $us0 || exit 1
16 mdconfig -a -t malloc -s $nblocks1 -u $us1 || exit 1
17 mdconfig -a -t malloc -s $nblocks1 -u $us2 || exit 1
19 dd if=/dev/random of=/dev/md${us0} count=$nblocks1 >/dev/null 2>&1
20 dd if=/dev/random of=/dev/md${us1} count=$nblocks1 >/dev/null 2>&1
21 dd if=/dev/random of=/dev/md${us2} count=$nblocks1 >/dev/null 2>&1
23 graid3 label -w $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
25 # Wait for synchronization.
28 # Break one component.
29 dd if=/dev/random of=/dev/md${us1} count=$nblocks2 >/dev/null 2>&1
30 # Provoke retaste of the rest components.
35 dd if=/dev/raid3/${name} of=/dev/null bs=1k count=$nblocks3 >/dev/null 2>&1
37 if [ $ec -eq 0 ]; then