5 MAX_MB=${RACER_MAX_MB:-8}
7 OSTCOUNT=${OSTCOUNT:-$(lfs df $DIR 2> /dev/null | grep -c OST)}
10 file=$((RANDOM % MAX))
11 # $RANDOM is between 0 and 32767, and we want $blockcount in 64kB units
12 blockcount=$((RANDOM * MAX_MB / 32 / 64))
13 stripecount=$((RANDOM % (OSTCOUNT + 1)))
14 [ $OSTCOUNT -gt 0 ] &&
15 lfs setstripe -c $stripecount $DIR/$file 2> /dev/null
16 dd if=/dev/zero of=$DIR/$file bs=64k count=$blockcount 2> /dev/null