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git://sourceware.org/git/lvm2.git
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188 lines
5.6 KiB
Bash
188 lines
5.6 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_vg 3
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lvcreate -n $lv1 -L8M --type mirror -m 1 $vg
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lvcreate -n $lv2 -L8M --type mirror -m 1 $vg
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vgchange -an $vg
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pvs
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vgs
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lvs -a -o+devices
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# Fail one leg of each mirror LV.
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aux disable_dev "$dev1"
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pvs -o+missing |tee out
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grep missing out |tee out2
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grep unknown out2
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial "partial"
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check vg_field $vg vg_missing_pv_count 1
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lvs -a -o+devices
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# Cannot do normal activate of either LV with a failed leg.
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not lvchange -ay $vg/$lv1
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not lvchange -ay $vg/$lv2
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# Can activate with partial option.
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lvchange -ay --activationmode partial $vg/$lv1
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lvchange -ay --activationmode partial $vg/$lv2
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pvs -o+missing |tee out
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grep missing out |tee out2
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grep unknown out2
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial "partial"
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check vg_field $vg vg_missing_pv_count 1
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lvs -a -o+devices
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# Repair lv1 so it no longer uses failed dev.
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lvconvert --repair --yes $vg/$lv1
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# Check that MISSING flag is set in ondisk metadata,
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# it should have been written by the lvconvert since the
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# missing PV is still used by lv2.
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pvck --dump metadata "$dev2" > meta
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grep MISSING meta
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rm meta
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pvs -o+missing |tee out
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grep missing out |tee out2
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grep unknown out2
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial "partial"
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check vg_field $vg vg_missing_pv_count 1
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lvs -a -o+devices
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# Verify normal activation is possible of lv1 since it's
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# not using any failed devs, and partial activation is
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# required for lv2 since it's still using the failed dev.
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vgchange -an $vg
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lvchange -ay $vg/$lv1
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not lvchange -ay $vg/$lv2
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vgchange -an $vg
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aux enable_dev "$dev1"
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pvs -o+missing |tee out
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grep missing out |tee out2
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grep "$dev1" out2
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial "partial"
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check vg_field $vg vg_missing_pv_count 1
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lvs -a -o+devices
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# TODO: check that lv2 has partial flag, lv1 does not
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# (there's no partial reporting option, only attr p.)
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# Check that MISSING flag is still set in ondisk
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# metadata since the previously missing dev is still
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# used by lv2.
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pvck --dump metadata "$dev2" > meta
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grep MISSING meta
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rm meta
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# The missing pv restrictions still apply even after
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# the dev has reappeared since it has the MISSING flag.
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not lvchange -ay $vg/$lv2
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not lvcreate -l1 $vg
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# Update old metadata on the previously missing PV.
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# This should not clear the MISSING flag because the
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# previously missing PV is still used by lv2.
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# This would be done by any command that writes
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# metadata, e.g. lvcreate, but since we are in a
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# state with a missing pv, most commands that write
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# metadata are restricted, so use a command that
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# explicitly writes/fixes metadata.
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vgck --updatemetadata $vg
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pvs -o+missing |tee out
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grep missing out |tee out2
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grep "$dev1" out2
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial "partial"
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check vg_field $vg vg_missing_pv_count 1
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lvs -a -o+devices
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# Check that MISSING flag is still set in ondisk metadata since the
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# previously missing dev is still used by lv2.
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pvck --dump metadata "$dev2" > meta
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grep MISSING meta
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rm meta
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# The missing pv restrictions still apply since it has the MISSING flag.
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not lvchange -ay $vg/$lv2
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not lvcreate -l1 $vg
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lvchange -ay --activationmode partial $vg/$lv2
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# Replace the missing leg of LV2 so no LV will be using the dev that was
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# missing. The MISSING_PV flag will not have been cleared from the
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# metadata yet; that will take another metadata update.
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lvconvert --repair --yes $vg/$lv2
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lvs -a -o+devices | tee out
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not grep "$dev1" out
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# The MISSING_PV flag hasn't been cleared from the metadata yet, but now
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# that the PV is not used by any more LVs, that flag will be cleared from
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# the metadata in the next update.
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pvck --dump metadata "$dev2" > meta
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grep MISSING meta
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rm meta
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# Reporting commands run vg_read which sees MISSING_PV in the metadata,
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# but vg_read then sees the dev is no longer used by any LV, so vg_read
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# clears the MISSING_PV flag in the vg struct (not in the metadata) before
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# returning the vg struct to the caller. It's cleared in the vg struct so
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# that the limitations of having a missing PV are not applied to the
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# command. The caller sees/uses/reports the VG as having no missing PV,
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# even though the metadata still contains MISSING_PV. The MISSING_PV flag
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# is no longer needed in the metadata, but there has simply not been a
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# metadata update yet to clear it.
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# The message that's printed in this case is:
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# WARNING: VG %s has unused reappeared PV %s %s
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pvs -o+missing |tee out
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not grep missing out
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial ""
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check vg_field $vg vg_missing_pv_count 0
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# Run any command that updates the metadata, and the MISSING_PV flag will
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# be cleared. Here just use lvcreate -l1, or we could use
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# vgck --updatemetadata.
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lvcreate -l1 $vg
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# Now the MISSING flag is removed from the ondisk metadata.
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pvck --dump metadata "$dev2" > meta
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not grep MISSING meta
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rm meta
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# and commands continue to report no missing PV
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pvs -o+missing |tee out
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not grep missing out
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vgs -o+partial,missing_pv_count
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check vg_field $vg vg_partial ""
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check vg_field $vg vg_missing_pv_count 0
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vgchange -an $vg
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vgremove -ff $vg
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