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#!/bin/sh
# Copyright (C) 2008-2013 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.
test_description='Test duplicate PVs'
. lib/inittest
aux prepare_devs 2
pvcreate "$dev1"
vgcreate $vg1 "$dev1"
# Clone the PV
dd if="$dev1" of="$dev2" bs=256K count=1 iflag=direct oflag=direct
aux notify_lvmetad "$dev2"
# When there cloned devices (same pvid), one will be referenced in
# lvmcache as pv->dev, and the other will not be referenced from lvmcache,
# it'll only be in device cache. The one referenced by lvmcache is
# referred to as the "preferred" one, and is the one that is printed by a
# standard 'pvs' command.
#
# We don't know if dev1 or dev2 will be preferred, so we first check that
# and save it as PV1, the other as PV2.
# Verify that there is only one PV printed, i.e. the preferred
pvs --noheading | tee out
test $(wc -l < out) -eq 1
# Set PV1 to the perferred/cached PV, and PV2 to the other.
# Cannot use pvs -o pv_name because that command goes to
# disk and does not represent what lvmetad thinks.
PV1=$(pvs --noheading | awk '{ print $1 }')
echo PV1 is $PV1
if [ $PV1 == $dev1 ]; then
PV2=$dev2
else
PV2=$dev1
fi
echo PV2 is $PV2
# check listed pvs
pvs --noheading | tee out
grep $PV1 out
not grep $PV2 out
# check error messages
pvs --noheading |& tee out
grep "Found duplicate" out >err
grep "using $PV1 not $PV2" err
# check listed pvs
pvs --noheading "$dev1" | tee out
grep $PV1 out
not grep $PV2 out
# check error messages
pvs --noheading "$dev1" |& tee out
grep "Found duplicate" out >err
grep "using $PV1 not $PV2" err
# check listed pvs
pvs --noheading "$dev2" | tee out
grep $PV1 out
not grep $PV2 out
# check error messages
pvs --noheading "$dev2" |& tee out
grep "Found duplicate" out >err
grep "using $PV1 not $PV2" err
# check listed pvs
pvs --noheading "$dev1" "$dev2" | tee out
grep $PV1 out
grep $PV2 out
# check error messages
pvs --noheading "$dev1" "$dev2" |& tee out
grep "Found duplicate" out >err
grep "using $PV1 not $PV2" err
# check listed pvs
pvs --noheading -a | tee out
grep $PV1 out
grep $PV2 out
grep $PV1 out | grep $vg1
grep $PV2 out | grep $vg1
# check error messages
pvs --noheading -a |& tee out
grep "Found duplicate" out >err
grep "using $PV1 not $PV2" err
# TODO: I'd like to test that a subsystem device is preferred
# over a non-subsystem device, but all the devices used here
# are DM devices, i.e. they are already subsystem devices,
# so I can't just wrap a standard block device with a DM
# identity mapping.
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