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lvm2/test/shell/lvresize-rounding.sh
2018-05-30 09:25:45 -05:00

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#!/usr/bin/env bash
# Copyright (C) 2007-2012 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
SKIP_WITH_LVMPOLLD=1
. lib/inittest
aux prepare_pvs 3 22
get_devs
vgcreate $SHARED -s 32K "$vg" "${DEVICES[@]}"
lvcreate -an -Zn -l4 -i3 -I64 $vg
lvcreate -an -Zn -l8 -i2 -I64 $vg
lvcreate -an -Zn -l16 $vg
lvcreate -an -Zn -l32 -i3 -I64 -n $lv1 $vg
lvresize -l+64 -i3 -I64 $vg/$lv1
lvresize -l+64 -i3 -I128 $vg/$lv1
#lvcreate -l100%FREE -i3 -I64 --alloc anywhere $vg
vgremove -f $vg
# 15 extents
LVM_TEST_AUX_TRACE=yes
aux prepare_vg 3 22
unset LVM_TEST_AUX_TRACE
# Block some extents
lvcreate -an -Zn -l4 -i3 $vg
lvcreate -an -Zn -l1 $vg
lvcreate -an -Zn -l100%FREE -n $lv1 -i3 $vg
check vg_field $vg vg_free_count 2
lvremove -f $vg/$lv1
lvcreate -an -Zn -l1 -n $lv1 -i3 $vg
lvextend -l+100%FREE -i3 $vg/$lv1
check vg_field $vg vg_free_count 2
lvreduce -f -l50%LV $vg/$lv1
vgremove -f $vg
vgcreate $SHARED -s 4M $vg "$dev1" "$dev2" "$dev3"
# Expect to play with 15 extents
check vg_field $vg vg_free_count 15
# Should be rounded to 12 extents
lvcreate -an -Zn -l10 -n lv -i3 $vg
check vg_field $vg vg_free_count 3
# Should want 16 extents
not lvextend -l+4 $vg/lv
# Round up to whole free space
lvextend -l+100%FREE $vg/lv
check vg_field $vg vg_free_count 0
# Rounds up and should reduce just by 3 extents
lvreduce -f -l-4 $vg/lv
check vg_field $vg vg_free_count 3
# Should round up to 15 extents
lvextend -f -l+1 $vg/lv
check vg_field $vg vg_free_count 0
lvreduce -f -l-4 $vg/lv
check vg_field $vg vg_free_count 3
lvextend -l90%VG $vg/lv
check vg_field $vg vg_free_count 0
not lvreduce -f -l-10%LV $vg/lv
check vg_field $vg vg_free_count 0
lvreduce -f -l-20%LV $vg/lv
check vg_field $vg vg_free_count 3