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#!/bin/sh
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# Copyright (C) 2013-2014 Red Hat, Inc. All rights reserved.
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#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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# Test repairing of broken thin pool metadata
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SKIP_WITH_LVMPOLLD = 1
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. lib/inittest
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which mkfs.ext2 || skip
#
# Main
#
aux have_thin 1 0 0 || skip
aux prepare_vg 4
# Create LV
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# TODO: investigate problem with --zero n and my repairable damage trick
#lvcreate -T -L20 -V10 -n $lv1 $vg/pool --discards ignore --zero n --chunksize 128 "$dev1" "$dev2"
lvcreate -T -L20 -V10 -n $lv1 $vg /pool --chunksize 128 --discards ignore " $dev1 " " $dev2 "
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lvcreate -T -V10 -n $lv2 $vg /pool
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mkfs.ext2 " $DM_DEV_DIR / $vg / $lv1 "
mkfs.ext2 " $DM_DEV_DIR / $vg / $lv2 "
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lvcreate -L20 -n repair $vg
lvcreate -L2 -n fixed $vg
lvs -a -o+seg_pe_ranges $vg
#aux error_dev "$dev2" 2050:1
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lvchange -an $vg /$lv2 $vg /$lv1 $vg /pool $vg /repair
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# Manual repair steps:
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# Test swapping - swap out thin-pool's metadata with our repair volume
lvconvert -y -f --poolmetadata $vg /repair --thinpool $vg /pool
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lvchange -ay $vg /repair
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#
# To continue this test - we need real tools available
# When they are not present mark test as skipped, but still
# let proceed initial part which should work even without tools
#
aux have_tool_at_least " $LVM_TEST_THIN_CHECK_CMD " 0 3 1 || skip
aux have_tool_at_least " $LVM_TEST_THIN_DUMP_CMD " 0 3 1 || skip
aux have_tool_at_least " $LVM_TEST_THIN_REPAIR_CMD " 0 3 1 || skip
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# Make some 'repairable' damage??
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dd if = /dev/zero of = " $DM_DEV_DIR / $vg /repair " bs = 1 seek = 40960 count = 1
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not " $LVM_TEST_THIN_CHECK_CMD " " $DM_DEV_DIR / $vg /repair "
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not " $LVM_TEST_THIN_DUMP_CMD " " $DM_DEV_DIR / $vg /repair " | tee dump
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" $LVM_TEST_THIN_REPAIR_CMD " -i " $DM_DEV_DIR / $vg /repair " -o " $DM_DEV_DIR / $vg /fixed "
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" $LVM_TEST_THIN_DUMP_CMD " --repair " $DM_DEV_DIR / $vg /repair " | tee repaired_xml
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" $LVM_TEST_THIN_CHECK_CMD " " $DM_DEV_DIR / $vg /fixed "
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lvchange -an $vg
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# Swap repaired metadata back
lvconvert -y -f --poolmetadata $vg /fixed --thinpool $vg /pool
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# Check pool still preserves its original settings
check lv_field $vg /pool chunksize "128.00k"
check lv_field $vg /pool discards "ignore"
check lv_field $vg /pool zero "zero"
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# Activate pool - this should now work
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vgchange -ay $vg
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vgchange -an $vg
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# Put back 'broken' metadata
lvconvert -y -f --poolmetadata $vg /repair --thinpool $vg /pool
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# Check --repair usage
lvconvert -v --repair $vg /pool
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# Check repaired pool could be activated
lvchange -ay $vg /pool
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vgchange -an $vg
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# Restore damaged metadata
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lvconvert -y -f --poolmetadata $vg /pool_meta0 --thinpool $vg /pool
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# Check lvremove -ff works even with damaged pool
lvremove -ff $vg