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#!/usr/bin/env bash
# Copyright (C) 2014 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 usage of stacked cache volume used in thin pool volumes
SKIP_WITH_LVMLOCKD=1
SKIP_WITH_LVMPOLLD=1
. lib/inittest
aux have_cache 1 3 0 || skip
aux have_thin 1 0 0 || skip
aux prepare_vg 5 80
lvcreate -L10 -n cpool $vg
lvcreate -L10 -n tpool $vg
lvcreate -L10 -n $lv1 $vg
lvconvert --yes --cache --cachepool cpool $vg/tpool
# Currently the only allowed stacking is cache thin data volume
lvconvert --yes --type thin-pool $vg/tpool
lvcreate -V10 -T -n $lv2 $vg/tpool
aux mkdev_md5sum $vg $lv2
lvconvert --splitcache $vg/tpool
check dev_md5sum $vg $lv2
lvchange -an $vg
lvchange -ay $vg
check dev_md5sum $vg $lv2
lvs -a $vg
lvconvert --yes --cache --cachepool cpool $vg/tpool
lvconvert --yes -T --thinpool $vg/tpool $vg/$lv1
check lv_field $vg/tpool segtype "thin-pool"
check lv_field $vg/$lv1 segtype "thin"
lvconvert --uncache $vg/tpool
lvs -a $vg
lvremove -f $vg
# Check conversion of cached LV works as thin-pool
lvcreate -L10 -n $lv $vg
lvcreate -L10 -n $lv1 $vg
lvcreate -H -L10 $vg/$lv
# Stack of cache over cache is unsupported ATM
fail lvconvert --yes --cachepool $vg/$lv
# Thin-pool cannot use cached metaddata LV (meta should be on FAST device)
fail lvconvert --yes --thinpool $vg/$lv1 --poolmetadata $vg/$lv
# Thin-pool CAN use cached data LV
lvconvert --yes --thinpool $vg/$lv
lvremove -f $vg
# Check we can active snapshot of cached external origin (BZ: 1967744)
lvcreate -T -L10M $vg/pool "$dev1"
lvcreate -L10M -n origin $vg "$dev1"
lvcreate -H -L4M -n CPOOL $vg/origin "$dev2"
# Use cached origin as external origin
lvconvert -y -T --thinpool $vg/pool --originname extorig origin
# Check we can easily create snapshot of such LV
lvcreate -y -kn -n snap -s $vg/origin
# Deactivate everything and do a component activation of _cmeta volume
lvchange -an $vg
lvchange -ay -y $vg/CPOOL_cpool_cmeta
# Now this must fail since component volume is active
not lvcreate -y -kn -n snap2 -s $vg/origin |& tee err
grep "cmeta is active" err
vgremove -f $vg
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