LU-14526 flr: mirror split downgrade SOM

[fs/lustre-release.git] / lustre / tests / sanity-flr.sh

diff --git a/lustre/tests/sanity-flr.sh b/lustre/tests/sanity-flr.sh
index 671be84..400f87e 100644 (file)
--- a/lustre/tests/sanity-flr.sh
+++ b/lustre/tests/sanity-flr.sh
@@ -2039,6 +2039,42 @@ test_44() {
 }
 run_test 44 "lfs mirror split check"
 
+test_44c() {
+       local tf=$DIR/$tdir/$tfile
+
+       stack_trap "rm -f $tf"
+
+       [ $MDS1_VERSION -ge $(version_code 2.14.52) ] ||
+               skip "Need MDS version at least 2.14.52"
+
+       [ "$FSTYPE" != "zfs" ] || skip "ZFS file's block number is not accurate"
+
+       mkdir -p $DIR/$tdir || error "create directroy failed"
+
+       dd if=/dev/zero of=$tf bs=1M count=10 || error "dd write $tfile failed"
+       sync
+       block1=$(( $(stat -c "%b*%B" $tf) ))
+       echo " ** before mirror ops, file blocks=$((block1/1024)) KiB"
+
+       $LFS mirror extend -N2 -c1 $tf || error "mirror extend $tfile failed"
+       sync
+       block2=$(( $(stat -c "%b*%B" $tf) ))
+       echo " ** after mirror extend, file blocks=$((block2/1024)) KiB"
+
+       $LFS mirror split -d --mirror-id=2 $tf ||
+               error "mirror split $tfile failed"
+       $LFS mirror split -d --mirror-id=3 $tf ||
+               error "mirror split $tfile failed"
+       sync
+       lfs getsom $tf
+       block3=$(( $(stat -c "%b*%B" $tf) ))
+       echo " ** after mirror split, file blocks=$((block3/1024)) KiB"
+
+       [[ $block1 -eq $block3 ]] ||
+               error "mirror split does not reduce block# $block3 != $block1"
+}
+run_test 44c "lfs mirror split reduces block size of a file"
+
 test_45() {
        [ $OSTCOUNT -lt 2 ] && skip "needs >= 2 OSTs"