13 nblocks2=`expr $nblocks1 / \( $ddbs / 512 \)`
14 src=`mktemp /tmp/$base.XXXXXX` || exit 1
15 dst=`mktemp /tmp/$base.XXXXXX` || exit 1
17 dd if=/dev/random of=${src} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
19 mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us0 || exit 1
20 mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us1 || exit 1
21 mdconfig -a -t malloc -s `expr $nblocks1 + 1` -u $us2 || exit 1
23 graid3 label $name /dev/md${us0} /dev/md${us1} /dev/md${us2} || exit 1
27 # Writing without PARITY component and rebuild of PARITY component.
29 graid3 remove -n 2 $name
30 dd if=/dev/zero of=/dev/md${us2} bs=512 count=`expr $nblocks1 + 1` >/dev/null 2>&1
31 dd if=${src} of=/dev/raid3/${name} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
32 graid3 insert -n 2 $name md${us2}
34 # Remove DATA component, so PARITY component can be used while reading.
35 graid3 remove -n 1 $name
36 dd if=/dev/zero of=/dev/md${us1} bs=512 count=`expr $nblocks1 + 1` >/dev/null 2>&1
38 dd if=/dev/raid3/${name} of=${dst} bs=$ddbs count=$nblocks2 >/dev/null 2>&1
39 if [ `md5 -q ${src}` != `md5 -q ${dst}` ]; then