NeilBrown: testreshape5 - add tests for RAID6
Martin F. Krafft
madduck at alioth.debian.org
Wed Jan 27 02:03:08 UTC 2010
Module: mdadm
Branch: upstream
Commit: 249887eb76d984d7a0053dfc79cd917880e883de
URL: http://git.debian.org/?p=pkg-mdadm/mdadm.git;a=commit;h=249887eb76d984d7a0053dfc79cd917880e883de
Author: NeilBrown <neilb at suse.de>
Date: Mon Oct 12 16:55:05 2009 +1100
testreshape5 - add tests for RAID6
.. to make sure our raid6 calculations are working.
Signed-off-by: NeilBrown <neilb at suse.de>
---
tests/07testreshape5 | 17 ++++++++++++-----
1 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/tests/07testreshape5 b/tests/07testreshape5
index 0360988..7c2bfc1 100644
--- a/tests/07testreshape5
+++ b/tests/07testreshape5
@@ -5,35 +5,42 @@
# 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-1)*disks]
+ 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] 5 $nlayout 0 $[size*1024] $devs
- mdadm -CR $md0 -amd -l5 -n$disks --assume-clean -c $chunk -p $layout $devs
+ $dir/test_stripe restore /tmp/RandFile $disks $[chunk*1024] $level $nlayout 0 $[size*1024] $devs
+ mdadm -CR $md0 -amd -l$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
+ blockdev --flushbufs $md0 $devs; sync
> /tmp/NewRand
- $dir/test_stripe save /tmp/NewRand $disks $[chunk*1024] 5 $nlayout 0 $[size*1024] $devs
+ $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
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