[MDADM PATCH -v5 1/1] mdadm/test: Add one test case for raid5 reshape
From: Xiao Ni <hidden>
Date: 2017-10-10 11:32:52
Subsystem:
the rest · Maintainer:
Linus Torvalds
This case tries to allow raid5 reshape to use backwards direction. It changes chunksize after reshape and stops the raid. Then starts the raid again. Signed-off-by: Xiao Ni <redacted> Suggested-by: Jes Sorensen <jes.sorensen@gmail.com> Suggested-by: Zhilong Liu <redacted> Suggested-by: Paul Menzel <redacted> --- test | 7 +++++++ tests/02r5grow | 17 +++++++++++++++++ 2 files changed, 24 insertions(+)
diff --git a/test b/test
index 25268a0..e74bbe5 100755
--- a/test
+++ b/test@@ -320,6 +320,13 @@ check() { grep -sq "inactive" /proc/mdstat || die "array is not inactive!" ;; + # It only can be used when there is only one raid + chunk ) + chunk_size=`awk -F',' '/chunk/{print $2}' /proc/mdstat | awk -F'[a-z]' '{print $1}'` + if [ "$chunk_size" -ne "$2" ] ; then + die "chunksize should be $2, but it's $chunk_size" + fi + ;; * ) die "unknown check $1" ;;
diff --git a/tests/02r5grow b/tests/02r5grow
index 386e82e..bb9bd6d 100644
--- a/tests/02r5grow
+++ b/tests/02r5grow@@ -34,3 +34,20 @@ check nosync sh tests/testdev $md0 3 $[size/2] 128 mdadm -S $md0 + +# create a raid5 array and change the chunk +mdadm -CR $md0 --level raid5 --metadata=1.1 --chunk=32 --raid-disks 3 --size $[size/2] $dev1 $dev2 $dev3 +check wait +check state UUU +check chunk 32 + +mdadm $md0 --grow --chunk=64 +check reshape +check wait +check chunk 64 + +mdadm -S $md0 +mdadm -A $md0 $dev1 $dev2 $dev3 +check state UUU +check chunk 64 +mdadm -S $md0
--
2.7.4