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Automatically restore MISSING PVs with no MDAs.

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This commit is contained in:
Petr Rockai 2012-11-25 20:41:56 +01:00
parent b3e9a09abe
commit 60668f823e
3 changed files with 38 additions and 0 deletions
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1
WHATS_NEW
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@ -1,5 +1,6 @@
Version 2.02.99 - Version 2.02.99 -
=================================== ===================================
Automatically restore MISSING PVs with no MDAs.
When no '-i' argument is given for RAID10, default to 2 stripes. When no '-i' argument is given for RAID10, default to 2 stripes.
Do not allow --splitmirrors on RAID10 logical volumes. Do not allow --splitmirrors on RAID10 logical volumes.
Skip mlocking [vectors] on arm architecture. Skip mlocking [vectors] on arm architecture.

6
lib/format_text/import_vsn1.c
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@ -221,6 +221,12 @@ static int _read_pv(struct format_instance *fid,
if (!pv->dev && !lvmetad_active()) if (!pv->dev && !lvmetad_active())
pv->status |= MISSING_PV; pv->status |= MISSING_PV;
if ((pv->status & MISSING_PV) && pv->dev && pv_mda_used_count(pv) == 0) {
pv->status &= ~MISSING_PV;
log_info("Recovering a previously MISSING PV %s with no MDAs.",
pv_dev_name(pv));
}
/* Late addition */ /* Late addition */
if (dm_config_has_node(pvn, "dev_size") && if (dm_config_has_node(pvn, "dev_size") &&
!_read_uint64(pvn, "dev_size", &pv->size)) { !_read_uint64(pvn, "dev_size", &pv->size)) {

31
test/shell/nomda-restoremissing.sh Normal file
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@ -0,0 +1,31 @@
#!/bin/sh
# Copyright (C) 2010 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
. lib/test
aux prepare_vg 3
pvchange --metadataignore y $dev1
lvcreate -m 1 -l 1 -n mirror $vg
lvchange -a n $vg/mirror
lvcreate -l 1 -n lv1 $vg "$dev1"
# try to just change metadata; we expect the new version (with MISSING_PV set
# on the reappeared volume) to be written out to the previously missing PV
aux disable_dev "$dev1"
lvremove $vg/mirror
not vgck $vg 2>&1 | tee log
grep "missing 1 physical volume" log
not lvcreate -m 1 -l 1 -n mirror $vg # write operations fail
aux enable_dev "$dev1"
lvcreate -m 1 -l 1 -n mirror $vg # no MDA => automatically restored
vgck $vg