tests: add cache-single-repairdev-dct-cachevol-repair-10

1 files changed, 203 insertions, 0 deletions

diff --git a/test/shell/cache-single-repair.sh b/test/shell/cache-single-repair.sh
new file mode 100644
index 000000000..f465e366a
--- /dev/null
+++ b/test/shell/cache-single-repair.sh
@@ -0,0 +1,203 @@
+#!/usr/bin/env bash
+
+# Copyright (C) 2018 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+
+# Test single lv cache options
+
+SKIP_WITH_LVMPOLLD=1
+
+. lib/inittest
+
+mkfs_mount_umount()
+{
+        lvt=$1
+
+        lvchange -ay $vg/$lvt
+
+        mkfs.xfs -f -s size=4096 "$DM_DEV_DIR/$vg/$lvt"
+        mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
+        cp pattern1 "$mount_dir/pattern1"
+        dd if=/dev/zero of="$mount_dir/zeros2M" bs=1M count=32 conv=fdatasync
+        umount "$mount_dir"
+
+        lvchange -an $vg/$lvt
+}
+
+mount_umount()
+{
+        lvt=$1
+
+        lvchange -ay $vg/$lvt
+
+        mount "$DM_DEV_DIR/$vg/$lvt" "$mount_dir"
+        diff pattern1 "$mount_dir/pattern1"
+        dd if="$mount_dir/zeros2M" of=/dev/null bs=1M count=32
+        umount "$mount_dir"
+
+        lvchange -an $vg/$lvt
+}
+
+aux have_cache 1 10 0 || skip
+which mkfs.xfs || skip
+
+mount_dir="mnt"
+mkdir -p "$mount_dir"
+
+# generate random data
+dd if=/dev/urandom of=pattern1 bs=512K count=1
+
+aux prepare_devs 6
+
+vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3" "$dev4" "$dev5" "$dev6"
+
+#
+# writethrough
+# no corruption of cachevol
+#
+
+lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2"
+lvcreate -n $lv2 -l 4 -an $vg "$dev3"
+lvcreate -n $lv3 -l 4 -an $vg "$dev4"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+mkfs_mount_umount $lv1
+
+lvconvert -y --repaircachevol $lv2 $vg/$lv3
+
+# new cache is valid since it was just copied from existing
+lvchange -ay $vg/$lv3
+cache_check "$DM_DEV_DIR/$vg/$lv3"
+lvchange -an $vg/$lv3
+
+# use new cache for main lv
+lvconvert -y --replacecachevol $lv2 $vg/$lv3
+
+# old cache is valid since it was never damaged
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+mount_umount $lv1
+
+lvremove $vg/$lv1
+lvremove $vg/$lv2
+
+#
+# writeback
+# no corruption of cachevol
+#
+
+lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2"
+lvcreate -n $lv2 -l 4 -an $vg "$dev3"
+lvcreate -n $lv3 -l 4 -an $vg "$dev4"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+mkfs_mount_umount $lv1
+
+lvconvert -y --repaircachevol $lv2 $vg/$lv3
+
+# new cache is valid since it was just copied from existing
+lvchange -ay $vg/$lv3
+cache_check "$DM_DEV_DIR/$vg/$lv3"
+lvchange -an $vg/$lv3
+
+# use new cache for main lv
+lvconvert -y --replacecachevol $lv2 $vg/$lv3
+
+# old cache is valid since it was never damaged
+lvchange -ay $vg/$lv2
+cache_check "$DM_DEV_DIR/$vg/$lv2"
+lvchange -an $vg/$lv2
+
+mount_umount $lv1
+
+lvremove $vg/$lv1
+lvremove $vg/$lv2
+
+#
+# writethrough, unrepairable cachevol damage
+#
+
+lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2"
+lvcreate -n $lv2 -l 4 -an $vg "$dev3"
+lvcreate -n $lv3 -l 4 -an $vg "$dev4"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writethrough $vg/$lv1
+
+mkfs_mount_umount $lv1
+
+# damage the current cache so it's not repairable
+# lvchange -y -ay $vg/$lv2
+# dd if=/dev/zero of="$DM_DEV_DIR/mapper/$vg-$lv2" bs=1M count=1 oflag=direct
+dd if=/dev/zero of="$dev3" bs=1M count=1 seek=1 oflag=direct
+# verify it's not repairable
+lvs -a $vg
+lvchange -y -ay $vg/$lv2
+lvs -a $vg
+ls "$DM_DEV_DIR/mapper/$vg-$lv2"
+not cache_check "$DM_DEV_DIR/mapper/$vg-$lv2"
+lvchange -an $vg/$lv2
+
+# cache_repair fails
+not lvconvert -y --repaircachevol $lv2 $vg/$lv3
+
+# drop the cache
+lvconvert --splitcache $vg/$lv1
+
+lvremove $vg/$lv1
+lvremove $vg/$lv2
+lvremove $vg/$lv3
+
+
+#
+# writeback, unrepairable cachevol damage
+#
+
+lvcreate -n $lv1 -l 16 -an $vg "$dev1" "$dev2"
+lvcreate -n $lv2 -l 4 -an $vg "$dev3"
+lvcreate -n $lv3 -l 4 -an $vg "$dev4"
+
+lvconvert -y --type cache --cachevol $lv2 --cachemode writeback $vg/$lv1
+
+mkfs_mount_umount $lv1
+
+# damage the current cache so it's not repairable
+# lvchange -y -ay $vg/$lv2
+# dd if=/dev/zero of="$DM_DEV_DIR/mapper/$vg-$lv2" bs=1M count=16 oflag=direct
+dd if=/dev/zero of="$dev3" bs=1M count=1 seek=1 oflag=direct
+# verify it's not repairable
+lvs -a $vg
+lvchange -y -ay $vg/$lv2
+lvs -a $vg
+ls "$DM_DEV_DIR/mapper/$vg-$lv2"
+not cache_check "$DM_DEV_DIR/mapper/$vg-$lv2"
+lvchange -an $vg/$lv2
+
+# cache_repair fails
+not lvconvert -y --repaircachevol $lv2 $vg/$lv3
+
+# drop the cache
+# N.B. this split doesn't seem to sync anything, and doesn't
+# seem to see/report any problems.
+lvconvert --splitcache $vg/$lv1
+
+lvremove $vg/$lv1
+lvremove $vg/$lv2
+lvremove $vg/$lv3
+
+
+#
+# TODO: inflict some plausible cachevol damage that can be repaired
+# by cache_repair.
+#
+