# # test the reshape code by using test_reshape and the # kernel md code to move data into and out of variously # shaped md arrays. set -x layouts=(la ra ls rs) for level in 5 6 do for chunk in 4 8 16 32 64 128 do devs="$dev1" for disks in 2 3 4 5 6 do eval devs=\"$devs \$dev$disks\" if [ " $level $disks" = " 6 3" -o " $level $disks" = " 6 2" ] then continue fi for nlayout in 0 1 2 3 do layout=${layouts[$nlayout]} size=$[chunk*(disks-(level-4))*disks] # test restore: make a raid5 from a file, then do a compare dd if=/dev/urandom of=/tmp/RandFile bs=1024 count=$size $dir/test_stripe restore /tmp/RandFile $disks $[chunk*1024] $level $nlayout 0 $[size*1024] $devs mdadm -CR -e 1.0 $md0 -amd -l$level -n$disks --assume-clean -c $chunk -p $layout $devs cmp -s -n $[size*1024] $md0 /tmp/RandFile || { echo cmp failed ; exit 2; } # FIXME check parity # test save dd if=/dev/urandom of=$md0 bs=1024 count=$size blockdev --flushbufs $md0 $devs; sync > /tmp/NewRand $dir/test_stripe save /tmp/NewRand $disks $[chunk*1024] $level $nlayout 0 $[size*1024] $devs cmp -s -n $[size*1024] $md0 /tmp/NewRand || { echo cmp failed ; exit 2; } mdadm -S $md0 udevadm settle done done done done exit 0