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author | Zdenek Kabelac <zkabelac@redhat.com> | 2016-05-19 18:21:07 +0200 |
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committer | Zdenek Kabelac <zkabelac@redhat.com> | 2016-05-19 18:40:14 +0200 |
commit | 6247364caf69cce766efcc79d972f70b175c5938 (patch) | |
tree | 6d7f590e2b947780fb8690ab1550fcf5ea253224 | |
parent | 9c083d34af0bc3ce690b3086714dd812c6a15193 (diff) | |
download | lvm2-6247364caf69cce766efcc79d972f70b175c5938.tar.gz |
tests: test change of cache mode
-rw-r--r-- | test/shell/lvchange-cache-mode.sh | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/test/shell/lvchange-cache-mode.sh b/test/shell/lvchange-cache-mode.sh new file mode 100644 index 000000000..8a056d625 --- /dev/null +++ b/test/shell/lvchange-cache-mode.sh @@ -0,0 +1,71 @@ +#!/bin/sh +# Copyright (C) 2016 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 + +# Exercise changing of caching mode on both cache pool and cached LV. + +SKIP_WITH_LVMLOCKD=1 +SKIP_WITH_LVMPOLLD=1 + +. lib/inittest + +aux have_cache 1 3 0 || skip + +aux prepare_vg 2 + +lvcreate --type cache-pool -L18 -n cpool $vg "$dev1" +lvcreate -H -L14 -n $lv1 --cachemode writeback --cachesettings migration_threshold=204800 --cachepool $vg/cpool $vg "$dev2" + +#cat "$DM_DEV_DIR/$vg/$lv1" >/dev/null +#aux delay_dev "$dev2" 300 1000 $(get first_extent_sector "$dev2"): + +#dmsetup status $vg-$lv1 +#dmsetup table $vg-$lv1 + +for i in $(seq 1 10) ; do +echo 3 >/proc/sys/vm/drop_caches +dd if=/dev/zero of="$DM_DEV_DIR/$vg/$lv1" bs=64K count=20 conv=fdatasync || true +echo 3 >/proc/sys/vm/drop_caches +dd if="$DM_DEV_DIR/$vg/$lv1" of=/dev/null bs=64K count=20 || true +done + +lvs -o+cache_dirty_blocks,cache_read_hits,cache_read_misses,cache_write_hits,cache_write_misses $vg/$lv1 + +vgcfgbackup -f /tmp/ooo $vg + + +# +# Drop later, code loading dm tables directly without lvm +# RHBZ 1337588 +# +#dmsetup table +#echo "STATUS before cleaner" +#dmsetup status +#dmsetup load --table "0 28672 cache 253:4 253:3 253:5 128 1 writethrough cleaner 0" $vg-$lv1 +#dmsetup resume $vg-$lv1 +#sleep 1 +#dmsetup table +#echo "STATUS after cleaner 1sec" +#dmsetup status --noflush +#dmsetup suspend --noflush $vg-$lv1 +#dmsetup resume $vg-$lv1 + +#dmsetup load --table "0 28672 cache 253:4 253:3 253:5 128 1 passthrough smq 2 migration_threshold 204800" $vg-$lv1 +#dmsetup resume $vg-$lv1 + +check lv_field $vg/$lv1 cache_mode "writeback" +lvchange --cachemode passthrough $vg/$lv1 +check lv_field $vg/$lv1 cache_mode "passthrough" +lvchange --cachemode writethrough $vg/$lv1 +check lv_field $vg/$lv1 cache_mode "writethrough" +lvchange --cachemode writeback $vg/$lv1 +check lv_field $vg/$lv1 cache_mode "writeback" + +vgremove -f $vg |