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git://sourceware.org/git/lvm2.git
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225 lines
4.5 KiB
Bash
225 lines
4.5 KiB
Bash
#!/usr/bin/env bash
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# Copyright (C) 2008-2013,2018 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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SKIP_WITH_LVMPOLLD=1
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. lib/inittest
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aux prepare_devs 3
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get_devs
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#
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# Test "old metadata" repair which occurs when the VG is written
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# and one of the PVs in the VG does not get written to, and then
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# the PV reappears with the old metadata. This can happen if
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# a command is killed or crashes after writing new metadata to
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# only some of the PVs in the VG, or if a PV is temporarily
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# inaccessible while a VG is written.
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#
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vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3"
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#
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# Test that vgck --updatemetadata will update old metadata.
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#
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lvcreate -n $lv1 -l1 -an $vg "$dev1"
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lvcreate -n $lv2 -l1 -an $vg "$dev1"
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aux disable_dev "$dev2"
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pvs
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pvs "$dev1"
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not pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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lvs $vg/$lv2
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lvremove $vg/$lv2
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aux enable_dev "$dev2"
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pvs 2>&1 | tee out
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grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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not lvs $vg/$lv2
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# fixes the old metadata on dev1
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vgck --updatemetadata $vg
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pvs 2>&1 | tee out
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not grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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not lvs $vg/$lv2
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#
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# Test that any writing command will also update the
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# old metadata.
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#
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lvcreate -n $lv2 -l1 -an $vg "$dev1"
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aux disable_dev "$dev2"
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pvs
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pvs "$dev1"
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not pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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lvs $vg/$lv2
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lvremove $vg/$lv2
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aux enable_dev "$dev2"
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pvs 2>&1 | tee out
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grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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not lvs $vg/$lv2
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# fixes the old metadata on dev1
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lvcreate -n $lv3 -l1 -an $vg
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pvs 2>&1 | tee out
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not grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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not lvs $vg/$lv2
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vgremove -ff $vg
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#
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# First two PVs with one mda, where both have old metadata.
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# Third PV with two mdas, where the first mda has old
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# metadata, and the second mda has current metadata.
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#
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dd if=/dev/zero of="$dev1" || true
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dd if=/dev/zero of="$dev2" || true
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dd if=/dev/zero of="$dev3" || true
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pvcreate "$dev1"
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pvcreate "$dev2"
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pvcreate --pvmetadatacopies 2 "$dev3"
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vgcreate $SHARED $vg "$dev1" "$dev2" "$dev3"
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lvcreate -n $lv1 -l1 -an $vg "$dev3"
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lvcreate -n $lv2 -l1 -an $vg "$dev3"
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# Save the metadata at this point...
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dd if="$dev1" of=meta1 bs=4k count=4
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dd if="$dev2" of=meta2 bs=4k count=4
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dd if="$dev3" of=meta3 bs=4k count=4
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# and now change metadata so the saved copies are old
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lvcreate -n $lv3 -l1 -an $vg "$dev3"
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# Copy the saved metadata back to the three
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# devs first mda, leaving the second mda on
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# dev3 as the only latest copy of the metadata.
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dd if=meta1 of="$dev1"
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dd if=meta2 of="$dev2"
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dd if=meta3 of="$dev3"
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pvs 2>&1 | tee out
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grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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# We still see the three LVs since we are using
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# the latest copy of metadata from dev3:mda2
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lvs $vg/$lv1
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lvs $vg/$lv2
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lvs $vg/$lv3
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# This command which writes the VG should update
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# all of the old copies.
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lvcreate -n $lv4 -l1 -an $vg
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pvs 2>&1 | tee out
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not grep "ignoring metadata seqno" out
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pvs "$dev1"
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pvs "$dev2"
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pvs "$dev3"
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lvs $vg/$lv1
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lvs $vg/$lv2
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lvs $vg/$lv3
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lvs $vg/$lv4
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vgchange -an $vg
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vgremove -ff $vg
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# Test when the metadata on two PVs have the same seqno
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# but different checksums.
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dd if=/dev/zero of="$dev1" || true
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dd if=/dev/zero of="$dev2" || true
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pvcreate "$dev1"
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pvcreate "$dev2"
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vgcreate $SHARED $vg "$dev1" "$dev2"
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lvcreate -n $lv1 -l1 -an $vg
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pvck --dump metadata -f meta "$dev2"
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# change an unimportant character so the metadata is effectively
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# the same in content but will have a different checksum
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sed 's/Linux/linux/' meta > meta2
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# write out the changed metadata
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pvck --repair -y -f meta2 "$dev2"
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# the vg can still be used but will produce warnings
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# the mda on one pv is updated, but not the other,
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# which changes the error from a checksum inconsistency
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# into a seqno inconsistency.
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lvs $vg 2>&1 | tee out
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grep WARNING out
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grep $lv1 out
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lvcreate -n $lv2 -l1 -an $vg 2>&1 |tee out
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grep WARNING out
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lvs $vg 2>&1 | tee out
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grep WARNING out
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grep $lv1 out
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grep $lv2 out
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# correct the senqo inconsistency
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vgck --updatemetadata $vg
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lvs $vg 2>&1 | tee out
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not grep WARNING out
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grep $lv1 out
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grep $lv2 out
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vgremove -ff $vg
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