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4f1309080a
When repairing thin pool or swapping thin pool metadata, preserve chunk_size property and avoid to be automatically changed later in the code to better match thin pool metadata size.
102 lines
2.8 KiB
Bash
102 lines
2.8 KiB
Bash
#!/bin/sh
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# Copyright (C) 2013-2014 Red Hat, Inc. All rights reserved.
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#
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# This copyrighted material is made available to anyone wishing to use,
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# modify, copy, or redistribute it subject to the terms and conditions
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# of the GNU General Public License v.2.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software Foundation,
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# 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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. lib/inittest
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which mkfs.ext2 || skip
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#
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# Main
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#
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aux have_thin 1 0 0 || skip
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aux prepare_vg 4
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# Create LV
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# TODO: investigate problem with --zero n and my repairable damage trick
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#lvcreate -T -L20 -V10 -n $lv1 $vg/pool --discards ignore --zero n --chunksize 128 "$dev1" "$dev2"
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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"
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mkfs.ext2 "$DM_DEV_DIR/$vg/$lv2"
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lvcreate -L20 -n repair $vg
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lvcreate -L2 -n fixed $vg
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lvs -a -o+seg_pe_ranges $vg
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#aux error_dev "$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
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lvconvert -y -f --poolmetadata $vg/repair --thinpool $vg/pool
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lvchange -ay $vg/repair
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#
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# To continue this test - we need real tools available
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# When they are not present mark test as skipped, but still
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# let proceed initial part which should work even without tools
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#
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aux have_tool_at_least "$LVM_TEST_THIN_CHECK_CMD" 0 3 1 || skip
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aux have_tool_at_least "$LVM_TEST_THIN_DUMP_CMD" 0 3 1 || skip
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aux have_tool_at_least "$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
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lvconvert -y -f --poolmetadata $vg/fixed --thinpool $vg/pool
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# Check pool still preserves its original settings
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check lv_field $vg/pool chunksize "128.00k"
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check lv_field $vg/pool discards "ignore"
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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
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lvconvert -y -f --poolmetadata $vg/repair --thinpool $vg/pool
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# Check --repair usage
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lvconvert -v --repair $vg/pool
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# Check repaired pool could be activated
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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
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lvremove -ff $vg
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